CONTENTSJO U R N A L OF INDUSTRIAL AND E N G IN E E R IN G CHEM I5TRY

V OL. Ill, 1911

JANUARY.E d i t o r i a l s :

A n tiq u a te d C u s to m s ............................................................................................T h e P h o sp h o ru s M a tc h ......................................................................................T h e P r ic e o f G ly c e r in ..........................................................................................

O r i g i n a l P a p e r s :W a s te W o o d a n d I t s U ti l iz a tio n . B y G eorg e B . F r a n k f o r te r . . C o m m e rc ia l B e n z o l in th e U n i te d S ta te s . B y J o h n M orris

W e is s ..............................................................................................................T im e , T e m p e ra tu re a n d C o m p o sitio n a s F a c to r s in S o fte n in g

W a te r . B y J . C. W m . G r e th .........................................................T h e F o re s t P r o d u c ts L a b o ra to ry . B y M cG a rv e y C line, D ire c to rO x id a tio n in S o il. B y M. X . S u ll iv a n a n d F . R . R e i d ...............T h e U se o f N i t r a te o f S o d a in C o m m erc ia l F e r t i l iz e rs . B y

C h arle s S . C a th c a r t ...............................................................................T a n k s fo r S o il In v e s t ig a t io n a t th e F lo r id a A g r ic u ltu ra l E x ­

p e r im e n t S ta t io n . B y A . W . B la ir a n d S . E . C ollisonA d d r e s s e s :

P o r t la n d C e m e n t as a B y -P ro d u c t . B y J . H . K e m p s te r .............T h e T ra in in g o f C h em ica l E n g in e e rs . B y M. C. W h i ta k e r . . . . T h e D e v e lo p m e n t o f P a in t F o rm u la e . B y L . S . H u g h e s .............

N o t e s a n d C o r r e s p o n d e n c e :D e te rm in a t io n of T in a n d A n tim o n y in S o f t S o ld e r .........................T h e U se of A lu n d u m C ru c ib le s in F a t t y A c id D e te r m in a t io n s . .D isso lv in g S ilico n A llo y s ...................................................................................T h e D e te rm in a t io n o f F re e S u lp h u r in C o n d im e n ta l F e e d s ,

S to c k T o n ic s a n d C o n d it io n e rs .......................................................

131525

30

333639

424242

A C o m p a riso n b e tw e e n th e R e f ra c tio n a n d th e S pecific G ra v i ty o f M ilk S e ru m fo r th e D e te c tio n of A d d e d W a te r ..............

B o o k R e v i e w s a n d N o t i c e s :H ig h S p ee d S te e l; D e r K a u ts c h u k u n d se in e P rü fu n g ; D ie

C h em ie d e r C e llu lo se ; D ie U n te rs c h e id u n g d e r N a tü r ­l ic h e n u n d K ü n s tl ic h e n S e id e n ; T e s tin g fo r M e ta llu rg ica l P ro c e s s e s ; P ra c t ic a l S ta m p M illing a n d A m a lg a m a tio n . .

S c i e n t i f i c a n d I n d u s t r i a l S o c i e t i e s :A sso c ia tio n of F e e d C o n tro l O ffic ials ; L a k e M ich ig an W a te r

. C o m m issio n ; N a tio n a l C o m m erc ia l G a s A sso c ia tio n ; A m e ric a n C h em ical S o c ie ty . M e th o d s o f A n a ly s is a n d T e s ts o f F a ts a n d O ils S u g g e s te d b y th e S p ec ia l C o m ­m it te e of C o m m itte e o n th e U n ifo rm ity of A n a ly s is of F a t s a n d F a t t y O ils ..............................................................................

P e r s o n a l N o t e s .

R e c e n t I n v e n t i o n s .

46

I n d u s t r i a l a n d T r a d e N o t e s :G e rm a n P o ta s h C o n tr a c ts ; D isc o v e ry of “ S h e e li te ” in N o v a

S c o tia ; I ro n a n d S te e l b y E le c tr ic P ro c e ss ; M in e ra l P a in t P ro d u c t io n ; E x p o r t 'P r ic e s of G e rm a n P o ta s h ; O u tlo o k o f C h ilea n N i t r a te B u s in e ss ; W o o d D is ti l la t io n ; N ew B r i t is h A lu m in u m A llo y ; F la x a n d L in se e d O il ; C h inese L a c q u e r W a r e ..........................................................................................

47

5252

43 O f f i c i a l R e g u l a t i o n s a n d R u l i n g s . 60

FEBRUARY.E d it o r ia l s : r J ’

C h em ical E n g in e e rs in th e T e x ti le I n d u s t r y .......................................... 61O rg a n iz a tio n fo r R o u t in e W o rk .................................................................... 62T h e F e r t i l iz e r I n d u s t r y ............................................................................. 62I n d u s t r ia l R e s e a rc h .................................................................................* . 62

O r ig in a l P a p e r s :C ry o lite a n d I t s In d u s t r ia l A p p lic a tio n s . B y A lfre d S . H a l-

l a n d ......................................... 63. O n th e I n te rp o la t io n M e th o d o f O il A n a ly s is . B y J . J .

K e ss le r a n d G . K . M a th ia s o n ....................................................... 6 6A C o m p a riso n o f M eth o d s of D e te rm in in g U n sa p o n if ia b le

M a tte r in W o o l O ils. B y A u g u s tu s H . G ill a n d A . E .S h ip p e e ......................................................................................................... 72

O n th e L ia b i l i ty o f W o o d O ils to G u m o n O x id a tio n . B yA u g u s tu s H . G ill a n d A . E . S h ip p e e ........................................... 73

T h e E x a c t E le c tro ly t ic A ssa y o f R e f in e d C o p p er. 1. S ta n d a r d M eth o d . 2. R a p id A ssa y b y R o ta t io n of th e E le c ­t r o ly te in a S o len o id . B y G eo rg e L . H e a t h ......................... 74

T h e D e te rm in a t io n o f A rsen ic a n d A n t im o n y in C o pper. B yG eo rg e L . H e a t h ..................................................................................... 78

T h e E s t im a t io n o f V e ry S m a ll A m o u n ts of C a lc iu m b y M ean so f P o ta s s iu m P e rm a n g a n a te . B y L . T . B o w s e r ............... 82

L in se e d O il. B y A . H . S a b in ....................................................................... 84N ew C o lo r R e a c tio n s fo r S o m e o f th e R e s in s w ith H a lp h e n ’s

R e a g e n t fo r C o lo p h o n y . B y E d w in F . H ic k s ...................... 8 6

E rro r s in D e te rm in in g th e S izes of G ra in o f M in e ra ls a n d th e U se of S u rfa c e F a c to r s . B y H a rr is o n E . A sh le y a n dW a rre n E . E m le y ................................................................................... 87

T h e D e co m p o s itio n o f C lays , a n d th e U ti l iz a tio n of S m e lte r a n d O th e r S m o k e in P re p a r in g S u lp h a te s f ro m C lays.B y H a rr is o n E . A s h le y ....................................................................... 91

E x t e n t a n d C o m p o sitio n o f th e I n c ru s ta t io n o n S o m e F i l te rS a n d s . B y E . B a r to w a n d C. E . M illa r .................................. 94

A d d r e s s e s :T h e W o rk of th e C h em ical L a b o ra to r ie s o f th e B u re a u o f M ines.

B y J . K . C le m e n t................................................................................... 96D isp o sa l o f S ta rc h F a c to r y W a s te s . B y T . B . W a g n e r ............... 99T re a tm e n t of W a s te W a te r f ro m a S ta rc h a n d G lucose F a c to ry .

B y O t to A . S jo s t ro m ............................................................................ 100

P l a n t a n d M a c h i n e r y : • E S S fcES a m p lin g a n d P r e p a ra t io n of R a w M a te r ia ls fo r A n a ly s is a t

S o u th W o rk s , I ll in o is S te e l Co. B y W a l te r B . W i le y . . . 103N o t e s a n d C o r r e s p o n d e n c e :

E ffic ien cy in A c id P h o s p h a te M a n u fa c tu re ....................................... 108L a b o r a to ry D is t i l la t io n s of W a te r G a s T a r ...................................... 108N o te o n th e D is t i l la t io n of T a r s C o n ta in in g W a te r ...................... 110P re c ip i ta t io n o f S u lp h u r f ro m D ilu te L im e S u lp h u r S o lu t io n s . . I l lA N ew A b so rp tio n A p p a r a tu s ................................................................... 112T en sile S tr e n g th of H a ir C lo th ................................................................. 112K o e n ig P o ta s h B u lb ....................................................................................... 113F il te r in g R a c k .................................................................................................... 113S a p o n if ic a tio n of F a t s fo r T i t e r D e te r m in a t io n .......................... 114T h e U se of G ly c e rin e in S a p o n ify in g F a t s in th e T i te r T e s t . . . . 114C a n d e lilla W a x ................................................................................................... 115

S c i e n t i f i c a n d I n d u s t r i a l S o c i e t i e s :D iv is io n of I n d u s t r ia l C h em is ts a n d C h em ical E n g in e e rs o f th e

A m e ric a n C h em ical S o c ie ty ; A m e ric a n C h em ical S o ­c ie ty . D iv is io n of F e r t i l iz e r C h em is ts ; C o -o p e ra tiv e W o rk on P h o sp h o r ic A c id b y th e D iv is io n of F e r t i l iz e r C h em is ts of th e A m e ric a n C h em ical S o c ie ty , 1910; A m e ric a n C h em ical S o c ie ty , D iv is io n o f F e r t i l iz e r C h em ists . P o ta s h C o m m itte e W o rk fo r D e ce m b e r M ee tin g , 1910; R e p o r t of th e C o m m itte e o n F e r t i l iz e r L e g is la tio n o f th e D iv is io n of th e F e r t i l iz e r C h em ists of th e A m e ric a n C h em ical S o c ie ty ; R e p o r t of th e C om ­m it te e on P h o s p h a te R o c k ; A m e ric a n C h em ical S o ­c ie ty . D iv is io n of P h a rm a c e u tic a l C h em is ts ; A b s tr a c t of R e p o r t of th e C o m m itte e o n Q u a n t i ta t iv e M eth o d s ; A m e ric a n I n s t i tu t e of C h em ical E n g in e e rs ; W e s te rnS o c ie ty of T ec h n ic a l C h em ists a n d M e ta llu rg is ts . . . . 115

B o o k R e v i e w s a n d N o t i c e s :D ie A e th e risc h e n O ele; “ C e m e n t A g e ” a n d “ C o n c re te E n g i­

n e e r in g ” C o n so lid a te d ............................................................. 127R e c e n t I n v e n t i o n s ........................................ ...................................................... - . . . 128I n d u s t r i a l a n d T r a d e N o t e s ....................................................................... 131C o r r e c t i o n ................................................................................................................. 140

iv T H E J O U R N A L OF I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y . Dec., 1 9 1 1

E d i t o r i a l s :J o u r n a l .........................................................................................................................F a c to r y E ffic ie n cy .....................................................................D r . R ic h a rd s o n .......................................................................................................L e o n a rd P a rk e r K in n ic u t t ...............................................................................T h e P e r k i n M e d a l A w a r d . ........................................................................................

O r i g i n a l P a p e r s :T h e S p o n ta n e o u s C o m b u s tio n o f C oal. B y S . W . P a r r a n d

F . W . K re s s m a n ................................... ..................................................T h e C e n te n a ry of G lu co se a n d th e E a r ly H is to ry o f S ta rc h .

B y B . H e r s te in .........................................................................................T h e D e te rm in a t io n of A rsen ic in In se c tic id e s . B y E . B . H o l­

l a n d .................................................................................................................P u r if ic a t io n o f In s o lu b le F a t t y A cids. B y E . B . H o l la n d ..........D e p re ss io n of th e F re e z in g P o in t b y V in e g a rs a s a C h eck on

T h e ir C o m p o sitio n . B y A le x a n d e r S i lv e r m a n ....................A B a c te r io lo g ic a l M e th o d fo r D e te rm in in g A v a ila b le O rg an ic

N itro g e n . B y J . M. M cC an d less a n d F . C. A t k i n s o n . . . In f lu e n c e o f V a r ia t io n in S p ec ific H e a t of W a te r o n C a lo r im e try

o f F u e ls . B y L eo L o e b ...................................................A d d r e s s e s :

O n C e r ta in P ro b le m s C o n n e c te d w ith th e P re s e n t-D a y R e la ­t io n b e tw e e n C h e m is try a n d M a n u fa c tu re in A m e ric a .B y R o b e r t K e n n e d y D u n c a n ..........................................................

C h e m is try a n d th e E n g in e e r . B y G eorg e B o rro w m a n ..................T h e T h e o re tic a l B a s is fo r th e U se o f C o m m e rc ia l F e rtiliz e rs .

B y F r a n k K . C a m e ro n ........................................................................

E d i t o r i a l s :C h em is ts ' B u i ld in g ................................................................................................H is to r ic a l ............................................................... .....................................................A N ew D y e in g I n d u s t r y to b e E s ta b l i s h e d ............................................

T h e C h e m i s t s ’ B u i l d i n g ....................................................................................................................

O r i g i n a l P a p e r s :P re l im in a ry R e p o r t o n th e T e r n a r y S y s te m C a0 - A l20 y-S i0 2 -

A S tu d y o f th e C o n s t i tu t io n o f P o r t la n d C e m e n t C lin ker.B y E . S . S h e p h e rd a n d G . A . R a n k in ........................................

M e th o d s f o r T e s tin g C oal T a r a n d R e fin e d T a r s , O ils a n dP itc h e s D e riv e d T h e re fro m . B y S . R . C h u rc h ...................

T h e B e h a v io r of H ig h -b o ilin g M in e ra l O ils o n H e a t in g in th eA ir. B y C. E . W a te r s ........................................................................

T h e D e te rm in a tio n o f M an g an ese b y th e S o d iu m B is m u th a teM eth o d . B y P a u l H . M .-P . B r in to n .........................................

M e th o d fo r T e s tin g G a lv a n iz e d I ro n to R e p la c e th e P ree c e T e s t . B y W a l te r A . P a t r ic k a n d W illia m H . W a lk e r . .

T h e F o rm a t io n T e m p e ra tu re o f C a rb o ru n d u m . B y H o ra c eW . G i l le t t ....................................................................................................

A n a ly s e s of C h a ra c te r is t ic N o r th w e s t T im b e r S o ils. B y J . S .J o n e s ............................. .................................. ............ ..............................

I n v e s t ig a t io n s o n th e E s t im a t io n o f In o rg a n ic P h o sp h o ru s inA n im a l T issu es. B y A . C. W h i t t i e r .........................................

A V o lu m e tr ic M e th o d fo r A n tim o n y in A lloy s. B y G eo rg e S.J a m ie s o n ........ ............................................................................

D e te rm in a t io n of C o co a S h ells in C ocoa P o w d er . B y W . L . D u b o is a n d C. I . L o t t ..........................................................................

E d i t o r i a l s :T h e S y n th e s is o f I n d ia R u b b e r .....................................................................S u g g e s tio n s a s to P u b lic S a fe ty ....................................................................C o ld S to ra g e .............................................................................................................

A d d r e s s e s :C h em ica l R e se a rc h a n d I n d u s t r ia l P ro g re ss . B y W ill ia m H .

W a lk e r ..........................................................................................................C o n tr ib u t io n o f C h e m is try to S a n i ta t io n . B y W ill ia m P .

M a so n ............................................................................................................C o m m erc ia l P ro d u c t io n of A m m o n ia . B y C. G . T u f t s ..................O n th e P r o p e r t ie s a n d P r e p a ra t io n of th e E le m e n t B o ro n . B y

E . W e in t r a u b ........................................................................................O r i g i n a l P a p e r s :

T h e C h e m is try of A n a e s th e tic s , I . E th y l E th e r . B y C h arle sB a sk e rv ille a n d W . A . H a m o r ........................................................

T h e A c tio n o f A lk a li S a l ts u p o n P o r t la n d C e m e n t. B yE d m u n d B u rk e a n d R e u b e n M. P in c k n e y ..............................

B o ile r W a te r P u rif ic a tio n . B y W m . M. B o o th ..................................A N ew R a p id a n d A c c u ra te V o lu m e tric M e th o d fo r th e D e te r ­

m in a t io n o f M an g a n e se a n d I t s A p p lic a tio n to th e A n a ly s is o f I ro n a n d S te e l. B y F . J . M etzg er a n d L . E . M a r rs ..............................................................................................................

MARCH.B le a ch in g w ith S o d iu m P e rb o ra te . B y J . M e r r i t t M a tth e w s ,

141 P h .D ............................................................................................................... 1911 4 1 B o o k R e v ie w s :

S ew ag e D isp o sa l; L e C ellu lo id— F a b r ic a t io n , A p p lica tio n s ,S u b s t i tu te s ; M u n ic ip a l C h e m is try ................................................ 193143

N e w P u b l ic a t io n s ............................................................................................................ 194D iv is io n o f A g r ic u l t u r a l a n d F o o d Ch e m is t s o f t h e A m e r ic a n

151 Ch e m ic a l S o c ie t y . , ..................................... 195N o t e s a n d A b st r a c t s ’ fr o m CoNSULARr R e p o r t s :158 W a g e s of U n sk ille d L a b o r in G e rm a n y .................................................... 196

16g W o rld ’s T in S u p p ly ............................................................................... 1961 7 1 I n c re a s in g G u a y u le R u b b e r S h ip m e n ts f ro m M ex ico ......................... 196

S o m e V a lu a b le M in e ra ls in U n i te d S ta t e s ............................................... 197^ 7 3 P r ize fo r D isc o v e r in g C o co n u t D ise a s e ....................................................... 197

In c re a s e d G e rm a n P r o d u c tio n of P o t a s h ................................................ 197N ew C o m p a n ies in C h in a .................................................................................. 197N ew M e th o d of M eta l C o a tin g ....................................................................... 197

1 7 5 R u b b e r I n v e s tm e n t in N e th e r la n d s , I n d ia ............................................... 197P re v e n tio n of W a s te a n d R iv e r P o l lu t io n .............................................. 198

N o t e s .......................................................................................................................................... 198R e c e n t I n v e n t io n s ........................................................................................................... 200177

1 8 6 E i g h t h I n t e r n a t i o n a l C o n g r e s s o f A p p l ie d C h e m i s t r y ...................... 203188 Ma r k e t R e p o r t .............................................. 204

APRIL.T h e E s t im a t io n of E s se n tia l O ils. B y C h arle s D . H o w a rd 252

205 R e p o r t o n M e th o d of D e te rm in a tio n of G lyce ro l. B y E u g e n e207 P r o b e c k . . . .................... 253208 T h e P re s e n c e o f A rsen ic in th e C o a tin g o f T a b le ts . B y H . C.

F u l l e r ............................................................................................................ 2542 0 8 T h e D e te c tio n o f P ru n e J u ic e a n d C a ram el in V a n illa F la v o r in g

E x tr a c ts . B y W . D e n is ....................................... 254M e th o d fo r N ick e l-Z in c S e p a ra tio n in G e rm a n S ilv e r a n d O th e r

A lloy s. B y L a V e rn e W . S p r in g .................................................. 255_ A R a p id V o lu m e tr ic M e th o d of S u g a r E s t im a t io n . B y W . F .

S u th e r s t ........................................................................................................ 2562 2 7 T h e Im p o r ta n c e o f a S ta n d a r d T e m p e ra tu re fo r S pecific G ra v i ty

D e te rm in a tio n s , a n d fo r S ta n d a rd iz in g M easu res of2 2 3 C a p a c ity . B y G . W . T h o m p s o n .................................................... 256

A M eth o d fo r th e D e te rm in a tio n o f T in in C a n n e d F o o d s . B y 2 3 y H e rm a n S c h re ib e r a n d W . C. T a b e r ............................................ 257

S c ie n t if ic S o c ie t ie s ......................................................................................................... 261239N o t e s a n d Co r r e s p o n d e n c e ....................................................................................... 262

242Co n s u l a r a n d T r a d e N o t e s a n d A b s t r a c t s ................................................... 265

246 B o o k R e v ie w s ...................................................................................................................... 268248 *A b s t r a c t s a n d N e w P u b l ic a t io n s ......................................................................... 270250 R e c e n t I n v e n t io n s ............................................................................................................ 272251 M a r k e t R e p o r t s ............................................................. 278

M A Y .E ffe c t o f Ig n i t io n o n S o lu b il i ty o f So il P h o sp h a te s . B y G . S.

279 F r a p s ..................................... 335284 D e v e lo p m e n t o f th e S u g a r In d u s t r y . B y A u g u s t v o n W a c h te l 335

P l a n t s a n d M a c h i n e r y :S u p e rh e a te d S te a m in In d u s t r ia l P la n ts . B y R o b e r t H . W y ld 339 A C o n v e n ien t C ru c ib le S u p p o r t . B y W illia m M. T h o rn to n , J r . 343

286 G as K iln fo r F ir in g O rn a m e n ta l G la ss ....................................................... 344A u to m a tic L iq u id S a m p le r . B y G . L . S p e n c e r ................................. 344

292 R e f ra c to ry C e m e n ts ............................................................................................... 345295 S c i e n t i f i c S o c i e t i e s ......................................................................................................... 345299 E d u c a t i o n a l .................................................................................................... 349

O b i t u a r i e s ............................................................ 351N o t e s a n d C o r r e s p o n d e n c e ....................................................................................... 354301C o n s u l a r a n d T r a d e N o t e s ....................................................................................... 358

317 •B o o k R e v i e w s ................................................................................................... 360326N e w P u b l i c a t i o n s ............................................................................................................................ 362R e c e n t I n v e n t i o n s .......................................................................................................... 363

333 M a r k e t R e p o r t s ................................................................................................................. 364

Dec., 1 9 1 1 T H E J O U R N A L OF I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y . v

E d it o r ia l s :A S u rv e y of C y a n id a tio n in 1911................................................................T h e G en era l M ee tin g in J u n e .........................................................................E n d o w m e n t F u n d .................................................................................................

O r ig in a l P a p e r s :T h e M icrosco p ic E x a m in a t io n a n d Id e n tif ic a tio n o f C arbon .

B y G . A . R o u s h .....................................................................................T h e D e te rm in a tio n of O x y g e n in I ro n a n d S tee l. B y A lle r to n

S . C u sh m a n ...............................................................................................T h e D e te rm in a tio n o f M an g a n e se b y th e S o d iu m B is m u th a te

M eth o d . B y W . F . H il le b ra n d a n d W illia m B lu m . . . . C o rrec tio n . T h e D e te rm in a tio n o f M an g an ese b y th e S o d iu m

B is m u th a te M eth o d . B y P . H . M .-P . B r in to n ...............A C o n tr ib u tio n to th e K n o w le d g e R e g a rd in g L oew ’s L im e-

M ag nesiu m R a tio . B y R o b e r t S te w a r t ..................................T h e C h e m is try of A n a e s th e tic s , I . E th y l E th e r . B y C h arle s

B a sk e rv ille a n d W . A . H a m o r .......................................................T h e E s t im a t io n of L im e a n d P o ta s h in th e A sh of C ereals.

B y F irm a n T h o m p so n a n d H . H . M organ , J r .......................T re a tm e n t of C re am ery S ew ag e b y th e S e p tic T a n k P rocess .

B y J a m e s T e n B ro e c k B o w le s ........................................................A ^ S tu d y of th e C o m p o sitio n of H a w a iia n P in ea p p le s . B y W .

P . K e l le y ...................................................................................................T h e D e te rm in a tio n o f T o ta l S o lid s in M ilk . B y P a u l P o e ts c h k e

P l a n t s a n d M a c h in e r y :F i l t r a t io n of W a te r . B y C h u rch ill H u n g e r fo rd .................................

E d it o r ia l s :R e tro s p e c t io n ..........................................................................................................H e a t T ra n s f e r .........................................................................................................

O r ig in a l P a p e r s :H e a t T ra n sm iss io n . B y H a ro ld P . G u rn e y .........................................T h e U t i l i ty o f th e M eta llo g rap h ic M icroscope. B y J a m e s

A s t o n . . . . ....................................................................................................T h e S iz in g o f P a p e r w ith R o s in C o m p o u n d s. B y J . S te w a r t

R e m in g to n , D o u g la s A . B o w a c k a n d P e rc y D a v id s o n . . T h e C h e m is try of A n a e s th e tic s , I I . E x a m in a t io n o f C om ­

m e rc ia l O xy g en . B y C h arle s B a sk e rv ille a n d R e s to nS te v e n s o n ...................................................................................................

T h e D e te rm in a tio n o f V a n a d iu m in V a n a d iu m a n d C hrom e-V a n a d iu m S tee ls . B y J . R . C a in ................................................

A R e c e n tly D isc o v e re d B a c te r ia l D e co m p o sitio n o f S ucrose .B y W . L . O w en .......................................................................................

E x t r a c t io n of G ra in s a n d C a tt le F o o d s fo r th e D e te rm in a tio n of S u g a rs : A C o m p a riso n o f th e A lcoho l a n d th e S o ­d iu m C a rb o n a te D ig e s tio n s . B y A . H u g h B ry a n , A.G iv e n a n d M . N . S t r a u g h n ...............................................................

T h e D e te c tio n of S a licy lic A cid . B y H . C. S h e rm a n a n d A.G ro s s .............................................................................................................

T h e P re s e rv a tio n of E ggs . B y R . B e rg e r .............................................T h e E ffe c t of th e E n v iro n m e n t of C a rb o n a te d B e v e rag e s on

B a c te r ia . B y C. C. Y o u n g a n d N . P . S h e rw o o d ................T h e C o m p o sitio n o f th e A p p le as A ffec ted b y I r r ig a t io n . B y

C. E . B r a d le y ...........................................................................................

E d it o r ia l s :T h e E n d o w m e n t F u n d .......................................................................................P u re D ru g s a n d M ed ic in es ...............................................................................

O r ig in a l P a p e r s :T h e E le c tr ic a l P re c ip i ta t io n of S u sp e n d e d P a rtic le s . B y F . G.

C o ttre l l .........................................................................................................P a p e r -M a k e rs ' C lays. B y J . S te w a r t R e m in g to n , D o u g la s A.

B o w ack a n d P e rc y D a v id s o n ..........................................................A S c h e m e fo r th e R a p id A n a ly s is of C em en t. B y C la ren ce N .

W ile y a n d W . A . E r n s t ......................................................................T h e D e te rm in a tio n of S u lp h u r in C oal b y M ean s of J a c k s o n ’s

C an d le T u rb id im e te r . B y H e n ry F . M u e r ............................T h e A c c u ra te T e c h n ic a l E s t im a t io n of th e C alorific V a lu e of

A n th ra c i te C oal. B y A . G . B la k e le y a n d E . M. C hance P re p a ra t io n o f N e u tra l A m m o n iu m C itr a te S o lu tio n s b y th e

C o n d u c tiv ity M eth o d . B y R o b e r t A. H a l l .........................A P o la risc o p ic M eth o d fo r th e D e te rm in a tio n o f M ale ic A cid

a n d I t s A p p lic a tio n in C ane a n d M ap le P ro d u c ts . B yP . A . Y o d e r .............................................................................................

C o co n u t O il o f H ig h Io d in e V a lu e . B y W . D . R ic h a rd so n . . . . D e te rm in a tio n of V a n a d iu m in S te e l a n d I ro n . B y B . O .

C r ite s .............................................................................................................T h e L o ss of C a rb o n d u r in g S o lu tio n of S te e l in P o ta s s iu m

C u pric C h lo ride . B y H e le n I s h a m .............................................C o n tr ib u tio n s to th e C h em is try of A n a e s th e tic s , I I I . N itro u s

O x id e. B y C h arle s B a sk e rv ille a n d R e s to n S te v e n so n

JUNE.T he N ew R e se a rc h L a b o r a to ry B u ild in g o f th e A m e ric a n

365 R o llin g M ill Co., M id d le to w n , O h io .............................................3 66 A n E lec tr ic F u rn a c e fo r Z inc S m e ltin g . B y F ra n c is A . J .367 F itz G e ra ld ...................................................................................................

A R a d ia to r fo r P la t in u m C ruc ib les. B y W . M. T h o rn to n , J r .A d d r e sse s :

M eta llo g rap hy a n d I t s In d u s t r ia l I m p o rta n c e . B y A lb e r tS a u v e u r ........................................................................................................

T he H yg ien e of th e W h ite L e a d I n d u s tr y . B y A lice H a m il­to n , M .A ., M .D ........................................................................................•174 P o tash f ro m F e ld sp a r . B y B . H e r s te in .................................................

R esearch a s a F in a n c ia l A sse t. B y W illis R . W h i tn e y .............376S c ie n t if ic So c ie t ie s .............................................................. ..........................................

376E d u c atio na l ..........................................................................................................................

378 N o t e s a n d C o r r e s p o n d e n c e ................................................................... .. .................398 Co n s u l a r and T r a d e N o t e s .......................................................................................400 B o o k R e v ie w s ......................................................................................................................403 N e w P u b l ic a t io n s .............................................................................................................405

R e c e n t I n v e n t io n s ...........................................................................................................408 Ma r k e t R e p o r t s .................................................................................................................

JULY.T h e E ffec t of L ow T e m p e ra tu re s o n G ro u n d C h ic k e m M e a t.

453 B y H . W . H o u g h to n , P h .D ...............................................7 ...........454 P l a n t s and Ma c h in e r y :

A n E lec tr ica lly C o n tro lle d C o n s ta n t T e m p e ra tu re W a te r B a th f o r th e Im m e rs io n R e f ra c tó m e te r . B y H . C. G o re . . . .

A n A p p a ra tu s fo r C o n tin u o u s S a m p lin g o f C o n d e n se r W a te rs4 6 2 f ro m E v a p o ra to r s . B y G eorg e P . M e a d e ...............................

A n Im p ro v ed P ic n o m e te r fo r G ly c e rin . B y L . W . B o s a r t , J r .466A d d r e s se s :

F ac to ry S a n i ta t io n a n d E ffic ien cy . B y C. E -A . W in s lo w . . . . 471 Review o f E le c tro c h e m ic a l D e v e lo p m e n t. B y E . A . S p e r ry . .

T h e C hem ist in th e S e rv ic e o f th e R a ilro a d . B y H . E . S m ith . .476

S c ie n t if ic So c ie t ie s .........................................................................................................E duc a tio n a l ........................................................... ..............................................................O b it u a r ie s ............................................................................................................................N o t e s and Co r r e s p o n d e n c e .......................................................................................486Co n s u l a r and T r a d e N o t e s .......................................................................................

492. „ B o o k R e v ie w s ......................................................................................................................493N e w P u b l ic a t io n s .............................................................................................................

495 R e c e n t I n v e n t io n s ...........................................................................................................496 M a r k e t R e p o r t s .................................................................................................................

AUGUST.S oaps f ro m D iffe re n t G ly c e rid es .— T h e ir G e rm ic id a l a n d I n -

539 se c tic id a l V a lu e s A lo n e a n d A sso c ia te d w ith A c tiv e540 A g en ts . B y H . C. H a m il to n ..........................................................

T h e A v a ila b il i ty o f th e In so lu b le N itro g e n in C e r ta in C o m ­m e rc ia l F e r t i l iz e rs . B y B u r t L . H a r tw e l l a n d F . R .

5 4 2 P e m b e r ...........................................................................................................T h e N a tu re o f S o m e C oal D u s ts a n d M ine A ir f ro m C o lo rad o

M ines. B y J o h n B . E k e le y .............................................................T h e Q u a n ti ta t iv e D e te rm in a tio n o f K e to n e s in E s s e n tia l O ils.

B y E . K . N e lso n .....................................................................................T h e M an u fac tu re of A m m o n ia in B y -P r o d u c t C oke O v en s . B y

e e - L o u is C le v e la n d J o n e s ..........................................................................P l a n t s a n d Ma c h in e r y .............................................................................................

557 A d d r e s s e s ...............................................................................................................................559 S c ie n t if ic So c ie t ie s .........................................................................................................

E d u c a t io n a l ..........................................................................................................................563 N o t e s a n d Co r r e s p o n d e n c e .......................................................................................574 Co n s u l a r and T r a d e N o t e s .....................................................................................5 7 4 B o o k R e v ie w s ......................................................................................................................

N e w P u b l ic a t io n s ............................................................................................................577 R e c e n t I n v e n t io n s ...........................................................................................................579 M a r k e t R e p o r t s ................................................................................................................

415

417419

420

422426429433435436441442 445 449 4 52

497

506

507508

508511514515516517518530531533534 538

582

584

586

588

589 594 598 610 615 615 617 619 621 622 624

vi T H E J O U R N A L OF I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y . Dec., 1 9 1 1

SEPTEMBER.E d i t o r i a l s :

T h e P u re F o o d L a w ............................................................................................. 625T h e S u b c u ta n e o u s A d m in is t r a t io n of P h e n o lsu lp h o n e p h th a le in

a s a M ean s o f D e te rm in in g th e W o rk in g C a p a c ity o f th e K id n e y s ........................................................................................................ 625

O r i g i n a l P a p e r s :F is h O il a s a P a in t V eh ic le . B y M ax im ilia n T o c h ............................ 627T h e E ffe c t of P ig m e n ts G ro u n d in L in se e d O il. B y H e n ry A .

G a rd n e r ................... 628C u p fe rro n : I t s U se in Q u a n t i ta t iv e A n a ly s is . B y O sk a r

B a u d isc h a n d V ic to r L . K in g .......................................................... 629T h e D e te rm in a t io n o f M an g a n e se in V a n a d iu m a n d C h ro m e-

V a n a d iu m S tee ls . B y J . R . C a in ................................................ 630O n th e S u rfa c e T e n s io n of M o lte n G lasses. B y E d w in W a rd

T il lo ts o n ,‘j r ................................................................................................ 631A R a p id a n d A c c u ra te M e th o d fo r th e A n a ly s is o f W h ite

M eta ls . B y J . C. B e n e k e r ............................................................... 637T h e V o lu m e tric C h ro m a te D e te rm in a t io n o f L ea d . B y Jo h n

W a d d e l l .................................................. 638N o te s o n th e D e te rm in a t io n o f A c id s in S u g a r C ane Ju ic e . B y

P . A . Y o d e r ................................................................................................ 640T h e O c cu rre n c e o f L e v a n in S u g a r. B y W . G . T a g g a r t 646T h e D e te c tio n o f S u b s t i tu t io n o f S p ir i ts fo r A ged W h isk e y . A

D isc u ss io n of th e C h em ical D a ta P re s e n te d in th e T r ia l o f U . S . v s . N in e B a r re ls o f W h isk e y . B y A. B . A d a m s 647

T h e R e la t io n o f N i t r a t e o f S o d a to th e M ec h an ica l C o n d itio nof C o m m erc ia l F e rtiliz e rs . B y J a c o b G . L ip m a n 655

S tu d ie s in O rg an ic S o il N itro g e n . B y E lb e r t C. L a th ro p a n dB a ile y E . B r o w n .................................................................................... 657

A n Im p ro v e m e n t in th e M e th o d fo r E s t im a t in g H u m u s inS oils. B y J . B . R a th e r .....................................................................

T h e D e te rm in a tio n o f D u s t in B la s t-F u rn a c e G as. B y W il­lia m B r a d y a n d L . A . T o u z a l in .....................................................

P l a n t s a n d M a c h i n e r y :A N ew A c c e le ra te d T e s t fo r P a in ts . B y H . K . B e n s o n a n d

C arl P o llo c k ...............................................................................................A T h e rm o s ta t fo r M o d e ra te T e m p e ra tu re s . B y A . M. B u s-

w ell a n d R a lp h H . M cK e e ................................................................A N ew F o rm o f E x t r a c t io n A p p a ra tu s . B y C. K . F r a n c is . . . .

A d d r e s s e s :T h e C o n se rv a tio n of o u r M eta l R e so u rce s . B y A lb e r t E .

G re e n e ..........................................................................................................T h e W o rk of E n g in e e rs in th e G a s In d u s tr ie s . B y F re d e ric k

P . R o y c e .....................................................................................................

S c i e n t i f i c S o c i e t i e s .......................E d u c a t i o n a l ............................................N o t e s a n d C o r r e s p o n d e n c e . C o n s u l a r a n d T r a d e N o t e s . .B o o k R e v i e w s .......................................N e w P u b l i c a t i o n s ............................R e c e n t I n v e n t i o n s .........................M a r k e t R e p o r t s .................................

OCTOBER.E d i t o r i a l s : %

T h e C o n se rv a tio n of R e s e a rc h ................................................T h e R e la t io n of C h e m is try to H ig h w a y E n g in e e r in g . I n te rn a t io n a l C o ngress of A p p lied C h e m is try ................

O r i g i n a l P a p e r s :T h e D ire c t P ro d u c t io n o f M o ly b d e n u m S te e l in th e E le c tr ic

F u rn a c e . B y E . T . D i t tu s a n d R . G . B o w m a n .C o n c e n tra t io n a n d P u rif ic a tio n o f I ro n O re , H ig h in S u lp h u r,

b y R o a s t in g in a R o ta r y K iln . B y J a m e s O tis H a n d ya n d J o h n M. K n o te ...............................................................................

S p ec if ica tio n s fo r th e P u rc h a s e o f F u e l O il fo r th e G o v e rn m e n t, w i th D ire c tio n s fo r S a m p lin g O il a n d N a tu ra l G as. B yI rv in g C. A l le n ........................................................................................

T h e D e te rm in a t io n o f T o ta l S u lp h u r in I n d ia R u b b e r . B yC. E . W a te rs a n d J . B . T u t t l e ........................................................

C o n sis ten cy o f P a in ts b y th e S to rm e r V isc o s im e ter . B y A llenR o g e rs a n d A . H . S a b in .....................................................................

A S tu d y of C a rb o n in S ew ag e a n d S ew ag e P u rif ic a tio n . B yH . W . C la rk a n d G eo rg e O . A d a m s .............................................

C o m p o sitio n o f th e D ra in a g e W a te r o f a S o il W i th a n d W ith o u t V e g e ta t io n . B y L y t t l e to n L y o n a n d J a m e s A . B izzell

A N ew M e th o d fo r C a lc u la tin g W a te r in C a n n e d T o m a to e s a n d th e D e te c tio n o f A d d e d W a te r to C a n n e d T o m a to e s . B yL e o n A . C o n g d o n ...................................................................................

C id er V in e g a r . B y F r a n k E . M o t t ............................................................L a b o r a to ry S tu d ie s o f P e p s in , P a n c r e a t in a n d C o m b in a tio n s

of T h e se F e rm e n ts . B y A . Z im m e rm a n .........................T h e A sh C o n te n t of C ap s icu m . B y H a r r y E . S in d a ll .................E s t im a t io n o f M o rp h in e b y E x t r a c t io n w ith P h e n y l-E th y l

A lcoho l. B y A . D . T h o r b u r n ........................................................P l a n t s a n d M a c h i n e r y :

T ra n s fo rm in g S ta t io n s o f N ia g a ra E le c tro c h e m ic a l a n d E lec-

713714715

723

730

737

738

742

744747

750753

754

tro m e ta llu rg ic a l I n d u s tr ie s . B y A . J . J o n e s .......................S m all E le c tr ic F u rn a c e w ith H e a t in g E le m e n t o f D u c tile

T u n g s te n o r D u c tile M o ly b d e n u m . B y R . W in n e a n dC. D a n ts iz e n ..............................................................................................

D e L a v a l C e n tr ifu g a l C la rifie r a n d F i l t e r ................................................A n A u to m a tic P ip e t te . B y G eo. E . B o ltz a n d C has. J . S cho l-

le n b e rg e r .....................................................................................................A p p a r a tu s fo r R e c e iv in g a n d M ea su rin g O il o r N a p h th a D is ­

til le d w ith S te a m . B y O. H . W u rs te r ....................................A d d r e s s e s :

S o m e P ro b le m s in C h em ical E n g in e e r in g P ra c tic e .F . W . F r e r ic h s ..................................................................

B y D r.

S c i e n t i f i c S o c i e t i e s :D e m o n s tr a t io n of th e B u re a u o f M ines a t th e A rse n a l G ro u n d s ,

P i t ts b u r g , a n d a t th e E x p e r im e n ta l M ine o f th e B u re a un e a r B ru c e to n , P a ., O c to b e r 30 , 1 9 1 1 . . . . . . ............................

T h e D e te rm in a tio n of N itro g e n in C o m m erc ia l A m m o n ia te sof H ig h N itro g e n C o n te n t .................................................................

R e p o r t of th e C o m m itte e o n P h o s p h a te R o c k .....................................A m e ric a n G as I n s t i t u t e .....................................................................................

E d u c a t i o n a l .N o t e s a n d C o r r e s p o n d e n c e ..........................

T h e D e te rm in a tio n of C am p h o r. G e n e ra l N o te s ........................................

B o o k R e v i e w s ...............N e w P u b l i c a t i o n s . . R e c e n t I n v e n t i o n s . M a r k e t R e p o r t s ____

E d i t o r i a l s :F a c il i t ie s fo r In d u s t r ia l R e se a rc h .

NOVEMBER.. . 797

O r i g i n a l P a p e r s :T ra n s fo rm a t io n of O th e r F o rm s o f C a rb o n in to G ra p h ite . B y

W . C. A rs e m ......................................................................................... 799A M eth o d o f A n a ly z in g S o m e C o m m erc ia l G o ld A lloy s. M eta ls

P re s e n t: G o ld , S ilv e r , C o pper, a n d O c ca s io n a lly Z in c a n dT in . B y J a s . O. H a n d y ................................................................ 804

C u p e lla tio n . B y R a y m o n d C. B e n n e r a n d M in e r L . H a r tm a n n 805H e a t R a d ia tio n . B y H a ro ld P . G u r n e y ............................................ 807T h e E ffe c t of A d d e d F a t t y a n d O th e r O ils u p o n th e C a rb o n iz a ­

t io n o f M in e ra l L u b r ic a t in g O ils. B y C. E . W a te r s - - . . . 812T h e F lu o re s c e n t T e s t fo r M in e ra l a n d R o s in O ils. B y P e rc y

H . W a lk e r a n d E . W . B o u g h to n .............................................. 816N itr ic N itro g e n in M ixed F e rtiliz e rs . B y S . S . P e c k ................ 817T h e O il of D o u g la s F ir : A P re lim in a ry S tu d y of I t s C o m po si­t e

t io n a n d P ro p e r tie s . B y H . K . B e n so n a n d M arcD a r r in ...........................................................................................................

A S tu d y of th e B ro m in e a n d Io d o m e tr ic M eth o d s fo r th e D e te r ­m in a tio n of R eso rc in o l. B y C. M. P e n c e ...............................

A N ew a n d A c c u ra te M eth o d fo r D e te rm in in g th e T ry p t ic V a lu eof P a n c re a tin . B y C la ren ce F . R a m s a y .................................

T h e A c ce le ra tin g A c tio n of HC1 u p o n th e S ta rc h -C o n v e r tin g P ro p e r t ie s o f P a n c r e a t in a n d M alt. B y A . Z im m e r­m a n ............................................................................................................. ..

D e te rm in a tio n o f M alic A cid . B y P . B . D u n b a r a n d R . F .B a c o n ............................................................................................................

T h e E ffe c t of P h o sp h o ru s M a n u rin g on th e A m o u n t of I n ­o rg a n ic P h o sp h o ru s in F l a t T u r n ip R o o ts . B y B u r tL . H a r tw e ll a n d F re d e ric k S . H a m m e t t ...................................

T in S a lts in C a n n e d F o o d s o f L ow A c id C o n te n t, w i th S p ec ia l R e fe re n c e to C a n n e d S h rim p . B y W . D . B ig elo w a n d R . F . B a c o n ..............................................................................................

660

662

670

671673

674

677

679701702 705 708 708 710 712

756

770771

772

773

774

782

783 783789790790791792793 793795796

818

820

822

823

826

831

832

'Dec., 1 9 1 1 T H E J O U R N A L OF I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y . vii

T h e U se o f S p ices a s P re se rv a tiv e s . B y C o n rad H o ffm an n a n dA lice C. E v a n s ......................................................................................... 835

T h e D e te rm in a tio n of G lia d in o r A lcoho l-S o lub le P ro te in inW h e a t F lo u r. B y R a lp h H o a g la n d . ...................................... 838

T h e D e te c tio n o f B e n z o ic A c id in Coffee E x t r a c t . B y H e r ­m a n C. L y th g o e a n d C la ren ce E . M a rsh ................................... 842

P l a n t s a n d M a c h i n e r y :T h e T h o m a s G a s M ete r. B y H . N . P a c k a rd ...................................... 842D e sig n of a 3 0 -T o n I n d u c t io n E le c tr ic F u rn a c e . B y A lb e r t

H i o r t h .......................................................................................................... 849

A d d r e s s e s :S o m e P ro b le m s in C h em ical E n g in e e r in g P ra c tic e . B y F . W .

F re r ic h s ....................................................................................................... 856

S c i e n t i f i c S o c i e t i e s :R e p o r t of C o m m itte e o n S ta n d a r d S p ec if ica tio n s .............................. 860A m e ric a n I n s t i t u t e of C h em ical E n g in e e rs— R e p o r t o f C om ­

m it te e on C h em ical E n g in e e r in g E d u c a t io n ........................... 863R e p o r t of th e C o m m itte e o n Q u a n t i ta t iv e M e th o d s ......................... 866R e p o r t u p o n th e T h ir d N a tio n a l C o n se rv a tio n C o n g re ss 868M ee tin gs of th e C h em ical S o cie ties in N ew Y o r k ............................... 869N a tio n a l A c a d e m y of S c ie n c e ........................................................................ 869

DECEMBER.E d i t o r i a l s :

P ro fess io n a l E t iq u e t t e ............................................................................................... 879T h e P o ta s h S u p p ly ...................................................................................................... 880

O r i g i n a l P a p e r s :T h e P re p a ra t io n a n d P ro p e r t ie s of M eta llic C erum . B y A lcan

H i r s c h . . . ................................................................................................................ 880O n th e D e n s ity o f S ilic a te M ix tu re s . B y E d w in W a rd T illo tso n ,

J r ................................................................................................................................. 897T h e D e te rm in a tio n o f V o la tile M a tte r in C oal. B y S . W . P a r r 900S om e N ew F e a tu r e s in th e E le c tro ly tic D e te rm in a tio n of L ea d . B y

J o h n G . F a irc h i ld ............................................................................................... 902N a p h th a le n e in R o a d T a rs . I . T h e E ffec t of N a p h th a le n e u p o n th e

C o n sis ten cy of R e fin e d T a rs . B y P re v o s t H u b b a rd a n d C. N .D ra p e r ...................................................................................................................... 903

A N ew M e th o d fo r D e te rm in in g th e M eltin g P o in t of P itc h . B yH . F . F r e n c h ......................................................................................................... 907

T h e C o m p o s itio n of T in c tu re o f G in g er. B y H e rm a n C. L y th g o ea n d L ew is I . N u re n b e rg .............................................................................. 910

A gin g of F lo u r a n d I t s E ffe c t o n D ig e s tio n . B y J . A . W e se n e r a n dG eorge L . T e l le r .................................................................................................. 912

S o m e O b se rv a tio n s u p o n th e A ssa y of D ig e s tiv e F e rm e n ts . B yH o w a rd T . G ra b e r ......................... 919

P l a n t s a n d M a c h i n e r y :T h e M a n u fa c tu re a n d P e rfo rm a n c e of th e E d iso n S to ra g e B a t te ry .

B y H o w a rd L y o n . .......................................................................................... 922A n E le c tr ic H e a te r fo r E th e r E x tr a c tio n s . B y W illia m H . R o ss . . 929T w o N ew P ieces of C h em ical A p p a ra tu s . B y R . F . B a c o n a n d

P . B . D u n b a r ........................................................................................................ 930L a b o ra to ry M illing M ach in e fo r S a m p lin g S tee l. B y C has. M orris

J o h n s o n .................................................... 932A d d r e s s e s :

R e c e n t D e v e lo p m e n ts in B a k e lite . B y L . H . B a e k e la n d .................... 932T h e .“ K a ise r W ilh e lm I n s t i t u t f ü r P h y s ik a lis c h e C hem ie u n d E le k ­

tro c h e m ie ” in D a h le m , n e a r B e rlin . B y W illia m D . H a rk in s . 938S c i e n t i f i c S o c i e t i e s :

A m e ric a n I n s t i tu t e of C h em ical E n g in e e r s ..................................................... 940N o t e s a n d C o r r e s p o n d e n c e :

M an g an ese in S te e l .............E le c tro ly tic “ A l te ra t iv e ” .

Ohio S o c ie ty of M ech an ica l, E le c tr ic a l a n d S te a m E n g in e e rs ,A n n u a l M e e tin g .......................................................................................

New J e r s e y S a n i ta ry A sso c ia tio n , A n n u a l M ee tin g ...........................A m erican P u b lic H e a l th A sso c ia tio n , A n n u a l M ee tin g ...................A ssociation o f A m e ric a n P o r t la n d C e m e n t M a n u fa c tu re rs ,

A n n u a l M e e tin g .......................................................................................A m erican S o c ie ty o f M ech an ica l E n g in e e rs , A n n u a l M e e tin g . . . N ational S o c ie ty fo r th e P ro m o tio n of In d u s t r ia l E d u c a tio n , A nnual M e e tin g ......................................................................................................

O b i t u a r i e s ..........................................> ............................................................................................................

N o t e s a n d C o r r e s p o n d e n c e :Note o n th e D e te rm in a tio n o f th e S p ec ific G ra v i ty of E th y l

E th e r , U . S . P ..........................................................................................A M eth od fo r F i l t r a t i o n . . . .......................................’. ...............................G eneral N o te s ..........................................................................................................

C o n s u l a r a n d T r a d e N o t e s ..........................................................................................................B o o k R e v i e w s ...............................................................................................................................................N e w P u b l i c a t i o n s ....................................................................................................................................R e c e n t I n v e n t i o n s .................................................................................................................................M a r k e t R e p o r t s .........................................................................................................................................

W estern P h o s p h a te D e p o s its .................................................................................P o tte ry P ro d u c t io n .....................................................................................................Sand-L im e B r ic k ..........................................................................................................I ro n an d S te e l I n d u s t r y , 19 10 ...............................................................................B aux ite a n d A lu m in u m P r o d u c t io n ..................................................................W orld’s C o n su m p tio n of B e e r , W in e a n d S p i r i t s ......................................R eports o n S tr e a m F lo w ..........................................................................................In d u s tr ia l G as A p p lia n c e L a b o r a t o r y . ............................................................P h osp ha te M in ing , 1910 ...........................................................................................G ypsum P r o d u c t io n ....................................................................................................Coal P ro d u c tio n of 1910 ...........................................................................................Increasing U se of E le c tr ic F u rn a c e s ..................................................................

t P rod u c tio n of P re c io u s S to n e s , 1910 .................................................................M ineral W a te r P r o d u c t io n ......................................................................................F lu o rsp a r ...........................................................................................................................T he D e v e lo p m e n t of th e E x p o r t of A ir S a l tp e te r f ro m N o rw a y . . .Concrete a n d C e m e n t a t P a n a m a ........................................................................In v e s tig a tio n of P o ta s h D e p o s its ........................................................................Corrosion o f S u p e rh e a te d S te a m P ip in g b y S o d a ......................................A S ta n d a rd P o r t la n d C e m e n t S p e c if ic a tio n ..................................................Mineral P ro d u c tio n S e c o n d o n ly to A g r ic u l tu re .........................................P rodu c tion o f L im e i n l 9 1 0 ....................................................................................O il U sed in P la c e of C o a l.........................................................................................New J e rs e y ’s Z inc P r o d u c t io n ...............................................................................W orld’s S u lp h u / P ro d u c t io n ..................................................................................Sicily S u lp h u r P r o d u c t io n .......................................................................................S a lt P ro d u c tio n , 1 9 1 0 ................................................................................................P la tin u m P ro d u c tio n . 1910 ................................................................................In te rn a tio n a l M ac h in e ry a n d E n g in e e r in g E x h ib i t io n ............................M odification of th e D e te rm in a tio n o f N icke l b y th e E th e r M e th o d . G eneral N o te s ........................................................« ...............................................

C o n s u l a r a n d T r a d e N o t e s ............................................................................................................B o o k R e v i e w s :

M odern In d u s tr ia l C h e m is try ; L u b r ic a t in g O ils, F a t s a n d G re a se s ;W ood P u lp a n d I t s U se s ................................................................................

N e w P u b l i c a t i o n s ......................................................................................................................................R e c e n t I n v e n t i o n s ...................................................................................................................................M a r k e t R e p o r t .............................................................................................................................................I n d e x ........................................................................................................................................................................

870870870

870870

870

870

872872872873874875876 878

941942943943944944945 945945946946947 947 947947948 948 948948949 949 949 949 949 949949950 950 950 950950951

954955 957960961