index to vol. lxxvii. (a) -...

28
INDEX to VOL. LXXVII. (A) Address delivered by the President, Sir. W. Huggins, November 30, 1905, 100. Alloy, note on Heusler’s magnetic (Gray), 256. Argon, chemical behaviour of (Cooke), 148. Bakerian Lecture (Milne), 365. Barkla (C. G.) Polarisation in Secondary Rontgen Radiation, 247. Baxandall (F. E.) See Lockyer and Baxandall. Becker (L.) Solar Eclipse Expedition to Kalaa-es-Senam, Tunis, 97. Berkeley (Earl of) and Hartley (E. G. J.) The Determination of the Osmotic Pressures of Solutions by the Measurement of their Vapour Pressures, 156. Bone (W. A.) and Wheeler (R. V.) The Combination of Hydrogen and Oxygen in Contact with Hot Surfaces, 146. Bousfield (W. R.) Ionic Size in Relation to the Physical Properties of Aqueous Solu- tions, 377. Boys (C. V.) A Gas Calorimeter, 122. Burnside (W.) On the Simple Group of Order 25920, 182. Callendar (H. L.) and Fowler (A.) Report of the Eclipse Expedition to Castellon de la Plana, Spain, 1. Calorimeter, gas (Boys), 122. Chree (C.) A Discussion of Atmospheric Electric Potential Results at Kew, from selected Days during the Seven Years 1898 to 1904, 385. Christie (Sir Wm.) Total Eclipse of the Sun, 1905, August 30. Preliminary Account of the Observations made at Sfax, Tunisia, 28. Clerk (D.) On the Specific Heat of, Heat Flow from, and other Phenomena of the Working Fluid in the Cylinder of the Internal Combustion Engine, 500. Contingency Tables for inheritance of unmeasured qualities, frequencies of occurrence of two variables (Yule), 324. Cooke (W. Ternent) Experiments on the Chemical Behaviour of Argon and Helium} 148. Darwin (Sir G. H.) On the Figure and Stability of a Liquid Satellite, 422. Densities of gases, static method of comparing (Threlfall), 542. Dines (W. H.) The Vertical Temperature Gradients on the West Coast of Scotland and at Oxshott, Surrey, 440. Dunstan (W. R.) and Jones (B. M.) A Variety of Thorianite from Galle, Ceylon, 546. Earth, dilatational stability of (Rayleigh), 486. Earth’s internal heat (Strutt), 472. Eclipse of 1905, August 30, expedition to Caste! 16n de la Plana, Spain (Callendar and Fowler), 1 ; observations made at Sfax, Tunisia (Christie), 28 ; expedition to Pineda de la Sierra, Spain (Evershed), 42 ; observations made at Guelma, Algeria (Newall), 56; expedition to Aswan (Turner), 77 ; expedition to Kalaa-es-Senam, Tunis (Becker), 97. VOL. LXXVII.— A. 2 R

Upload: dohanh

Post on 21-Aug-2018

225 views

Category:

Documents


0 download

TRANSCRIPT

INDEX t o VOL. LXXVII. (A)

Address delivered by the President, Sir. W. Huggins, November 30, 1905, 100.Alloy, note on Heusler’s magnetic (Gray), 256.Argon, chemical behaviour of (Cooke), 148.

Bakerian Lecture (Milne), 365.Barkla (C. G.) Polarisation in Secondary Rontgen Radiation, 247.Baxandall (F. E.) See Lockyer and Baxandall.Becker (L.) Solar Eclipse Expedition to Kalaa-es-Senam, Tunis, 97.Berkeley (Earl of) and Hartley (E. G. J.) The Determination of the Osmotic Pressures

of Solutions by the Measurement of their Vapour Pressures, 156.Bone (W. A.) and Wheeler (R. V.) The Combination of Hydrogen and Oxygen in

Contact with Hot Surfaces, 146.Bousfield (W. R.) Ionic Size in Relation to the Physical Properties of Aqueous Solu­

tions, 377.Boys (C. V.) A Gas Calorimeter, 122.Burnside (W.) On the Simple Group of Order 25920, 182.

Callendar (H. L.) and Fowler (A.) Report of the Eclipse Expedition to Castellon de la Plana, Spain, 1.

Calorimeter, gas (Boys), 122.Chree (C.) A Discussion of Atmospheric Electric Potential Results at Kew, from

selected Days during the Seven Years 1898 to 1904, 385.Christie (Sir Wm.) Total Eclipse of the Sun, 1905, August 30. Preliminary Account of

the Observations made at Sfax, Tunisia, 28.Clerk (D.) On the Specific Heat of, Heat Flow from, and other Phenomena of the

Working Fluid in the Cylinder of the Internal Combustion Engine, 500.Contingency Tables for inheritance of unmeasured qualities, frequencies of occurrence of

two variables (Yule), 324.Cooke (W. Ternent) Experiments on the Chemical Behaviour of Argon and Helium}

148.

Darwin (Sir G. H.) On the Figure and Stability of a Liquid Satellite, 422.Densities of gases, static method of comparing (Threlfall), 542.Dines (W. H.) The Vertical Temperature Gradients on the West Coast of Scotland and

at Oxshott, Surrey, 440.Dunstan (W. R.) and Jones (B. M.) A Variety of Thorianite from Galle, Ceylon, 546.

Earth, dilatational stability of (Rayleigh), 486.Earth’s internal heat (Strutt), 472.Eclipse of 1905, August 30, expedition to Caste! 16n de la Plana, Spain (Callendar and

Fowler), 1 ; observations made at Sfax, Tunisia (Christie), 28 ; expedition to Pineda de la Sierra, Spain (Evershed), 42 ; observations made at Guelma, Algeria (Newall), 56; expedition to Aswan (Turner), 77 ; expedition to Kalaa-es-Senam, Tunis (Becker), 97.VOL. LXXVII.— A. 2 R

5 56

Electric resistance to motion of charged conducting sphere (Walker), 260.Electric waves, directed emission and reception of (Marconi), 413.Electrical measuring machine for engineering gauges (Shaw), 340.Ellipsoidal harmonics, calculation of (Niven), 458.Evershed (J.) Eeport of the Eclipse Expedition to Pineda de la Sierra, Spain, 42. Explosions of coal-gas and air (Hopkinson), 387.

Fowler (A.) See Callendar and Fowler.

Galvanic cells produced by action of light (Wilderman), 274.Gas calorimeter (Boys), 122.Gases, static method of comparing densities of (Threlfall), 542.Gray (Andrew) Note on Heusler’s Magnetic Alloy of Manganese, Aluminium, and

Copper, 256.Group of order 25920 (Burnside), 182.

Hartley (E. G. J.) See Berkeley and Hartley.Havelock (T. H.) Artificial Double Refraction, due to JEolotropic Distribution, with

Application to Colloidal Solutions and Magnetic Fields, 170.Helium, chemical behaviour of (Cooke), 148.Heusler’s magnetic alloy, note on (Gray), 256.Hopkinson (B.) Explosions of Coal-Gas and Air, 387.Huggins (Sir Wm.) Presidential Address, November 30, 1905, 100.Hydrogen and oxygen, combination in contact with hot surfaces (Bone and Wheeler), 146.

Internal combustion engine, phenomena of working fluid in cylinder of (Clerk), 500.Ionic size in relation to physical properties of solutions (Bousfield), 377.Iron, overstraining by tension and compression (Muir), 277.

Jones (B. M.) See Dunstan and Jones.

Light, production of galvanic cells by action of (Wilderman), 274.Lockyer (Sir N.) On the Observations of Stars made in some British Stone Circles.—

Second Note, 465 ; ----- and Baxandall (F. E.) Some Stars with Peculiar Spectra,550.

Lowell (Percival) First Photographs of the Canals of Mars, 132.

Maclaurin (R. C.) On Metallic Reflection and the Influence of the Layer of Transition,211.

Magnetic detector of self-restoring type, method of obtaining continuous currents from (Walter), 538.

Makower (W.) On the Effect of High Temperatures on Radium Emanation, 241.Marconi (G.) On Methods whereby the Radiation of Electric Waves may be mainly

confined to certain Directions, and whereby the Receptivity may be restricted to Electric Waves emanating from certain Directions, 413.

Mars, first photographs of canais of (Lowell), 132.Material world, mathematical concepts of (Whitehead), 290.Measuring machine, electrical, for engineering gauges (Shaw), 340.Metallic reflection and influence of layer of transition (Maclaurin), 211.Milne (J.) Recent Advances in Seismology, 365.Motion of charged conducting sphere, electric resistance to (Walker), 260.Muir (Jas.) On the Overstraining of Iron by Tension and Compression, 277.

557

Newal] (H. F.) Total Solar Eclipse, 1905, August 29 to 30. Preliminary Report of the Observations made at Guelma, Algeria, 56.

Niven (Sir W. JD.) The Calculation of Ellipsoidal Harmonics, 458.

Osmotic pressure and vapour pressure in concentrated solution (Spens), 234.Osmotic pressures of solutions, determination by measurement of vapour pressures

(Berkeley and Hartley), 156.

Periodogram and its optical analogy (Schuster), 136.Pool (B) See Trouton and Pool.

Radium, distribution of, in earth’s crust (Strutt), 472.Radium emanation and high temperatures (Makower), 241.Rayleigh (Lord) On the Hilatational Stability of the Earth, 486.Reflection, metallic, and layer of transition (Maclaurin), 211.Refraction, artificial double, due to seolotropic distribution (Havelock), 170.

Satellite, liquid, figure and stability of (Darwin), 422.Schuster (A.) The Periodogram and its Optical Analogy, 136 ; ----- On Sun-spot

Periodicities.—Preliminary Notice, 141.Seismology, recent advances in (Milne), 365.Shaw (P. E.) An Electrical Measuring Machine for Engineering Gauges and other

Bodies, 340.Soap films, observations and photographs of (Stansfield), 314.Spens (W.) The Relation between the Osmotic Pressure and the Vapour Pressure in a

Concentrated Solution, 234.Stansfield (H.) Observations and Photographs of Black and Grey Soap Films, 314.Stars with Peculiar Spectra (Lockyer and Baxandall), 550.Statistics of ill-defined qualities, influence of bias and personal equation (Yule), 337.Stone circles, British, observations of stars made in (Lockyer), 465.Strutt (Hon. R. J.) On the Distribution of Radium in the Earth’s Crust and on the

Earth’s Internal Heat, 472.Submarines, stability of (White), 528.Sun-spot periodicities (Schuster), 141.

Temperature gradients, vertical, on West Coast of Scotland and in Surrey (Dines), 440.Thorianite, variety of, from Galle, Ceylon (Dunstan and Jones), 546.Threlfall (R.) On a Static Method of comparing the Densities of Gases, 542.Trouton (F.) On the Coefficient of Viscous Traction and its Relation to that of Viscosity,

426 ; ----- and Pool (B.) The Vapour Pressure in Equilibrium with Substancesholding Varying Amounts of Moisture, 292.

Turner (H. II.) Preliminary Report of the Expedition to Aswan to observe the Total Solar Eclipse of August 30, 1905, 77.

Vapour pressure and osmotic pressure in concentrated solution (Spens), 234.Vapour pressure in equilibrium with substances holding varying amounts of moisture

(Trouton and Pool), 292.Variables, property of groupings of normal distribution of frequency for two (Yule), 324.Viscous traction, coefficient of, and relation to that of viscosity (Trouton), 426.

558

Walker (G. W.) On the Electric Resistance to the Motion of a Charged Conducting Sphere in Free Space or in a Field of Force, 260.

Walter (L. H.) On a Method of obtaining Continuous Currents from a Magnetic Detector of the Self-restoring Type, 538.

Wheeler (R. Y.) See Bone and Wheeler.White (Sir W. H.) The Stability of Submarines, 528.Whitehead (A. N.) On Mathematical Concepts of the Material World, 290.Wilderman (M.) Galvanic Cells produced by the Action of Light.—Second Communica­

tion, 274.

Yule (G. U.) On a Property which holds good for all Groupings of a Normal Distribu­tion of Frequency for two Variables, etc., 324 ; ----- On the Influence of Bias andof Personal Equation in Statistics of Ill-defined Qualities : an Experimental Study, 337.

END OF TI1E SEVENTY-SEVENTH VOLUME (SERIES A).

H a k rison a n d S on s , Printers in O rdinary to His M ajesty, St. M artin’s Lane.

MINUTES OF MEETINGS.—SESSION 1905-6.

November 16, 1905.

Sir WILLIAM HUGGINS, K.C.B., O.M., President, followed by Professor CAREY FOSTER, in the Chair.

Mr. George W. Lamplugh, Professor Francis W. Oliver, and Lieutenant-Colonel David Prain were admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

In pursuance of the Statutes, notice of the ensuing Anniversary Meeting was given from the Chair.

Dr. Horace Brown, Captain E. W. Creak, and Professor G. M. Minchin were elected Auditors of the Treasurer’s accounts on the part of the Society.

The following Papers, received during the Recess and published or in course of publication, in accordance with the Standing Orders of Council, were read in title :—

“ The Absorption Spectrum and Fluorescence of Mercury Vapour.” By Professor W. N. Hartley, F.R.S.

“ On the Origin and Life-History of the Interstitial Cells of the Ovary in the Rabbit.” By Miss J. E. Lane-Claypon. Communicated by Professor E. H. Starling, F.R.S.

“ The Formation of Ice and the Grained Structure of Glaciers.” By Professor G. Quincke, For. Mem. R.S.

“ Preliminary Report on a Survey of Magnetic Declination near the Royal Alfred Observatory, Mauritius.” By T. F. Claxton. Communicated by Dr. C. Chree, F.R.S.

“ Transmission and Inoculability of Spirillum Theileri (Laveran).” By Dr. A. Theiler. Communicated by Colonel Bruce, C.B., F.R.S.

“ Note on the Mechanism of the Ascent of Sap in Trees.” By Professor J. Larmor, Sec. R.S.

“ On the Influence of Collisions and of the Motion of Molecules in the Line of Sight upon the Constitution of a Spectrum Line.” By Lord Rayleigh, O.M., F.R.S.

“ An Experimental Enquiry into the Nature of the Substance in Serum which influences Phagocytosis.” By Dr. G. Dean. Communicated by Professor J. R. Bradford, F.R.S.

“ An Experiment with the Balance to find if Change of Temperature has any Effect upon Weight.” By Professor J. H. Poynting, F.R.S., and P. Phillips.

“ The Phagocytosis of Red Blood-Cells.” By Dr. J. 0 . Wakelin Barratt. Communicated by Sir Y. Horsley, F.R.S.

“ A New Formation of Diamond.” By Sir W. Crookes, F.R.S.

“ The Influence of Phase Changes on the Tenacity of Ductile Metals at the Ordinary Temperature and the Boiling Point of Liquid Air.” By G. T. Beilby and H. N. Beilby. Communicated by Professor J. Larmor, Sec. R.S.

“ On the Probable Existence of Emulsin in Yeast.” By Dr. T. A. Henry and Dr. S. J. M. Auld. Communicated by Professor W. R. Dunstan, F.R.S.

<£ A Preliminary Note on the Susceptibility of Goats to Malta Fever.” By Dr. T. Zammit. Communicated by Colonel Bruce, C.B., F.R.S.

“ Preliminary Note on Goats as a Means of Propagation of Mediter­ranean Fever.” By Major W. H. Horrocks. Communicated by Colonel Bruce, C.B., F.R.S.

“ Studies on Enzyme Action. VII.—The Synthetic Action of Acids contrasted with that of Enzymes. Synthesis of Maltose and Iso­maltose. VIII.—The Mechanism of Fermentation.” By Dr. E. F. Armstrong. Communicated by Professor H. E. Armstrong,F.R.S.

“ Studies on Enzyme Action.—Lipase.” By Professor H. E. Arm­strong, F.R.S.

“ Inheritance of Heterostylism in PrBy W. Bateson, F.R.S., and R. P. Gregory.

“ Fertility in Scottish Sheep.” By Dr. F. H. A. Marshall. Com­municated by Professor Schafer, F.R.S.

“ On the Spectrum of the Spontaneous Luminous Radiation of Radium. Part III.—Radiation in Hydrogen.” By Sir W. Huggins, K.C.B., Pres. R.S., and Lady Huggins.

“ Researches on Explosives.—Part III. Supplementary Note.” By Sir Andrew N oble, Bart., F.R.S.

“ Report on the Anatomy of the Tsetse Fly ( palp alii). ” ByProfessor E. A. Minchin. Communicated by Professor Ray Lankester, F.R.S.

“ On the Isolation of the Infecting Organism (Zoochlorella) of Convoluta Boscoffensis.” By F. Keeble and F. W. Gamble. Com­municated by Professor S. J. Hickson, F.R.S.

iv

M.A.; Professor Francis Gotch, D.Sc. ; Sidney Frederic Harmer, Sc.D.; Sir William Huggins, K.C.B., O.M.; Professor Edwin Ray Lankester, M.A.; John Edward Marr, Sc.D.; George Ballard Mathews, M.A. ; Hugh Frank Newall, M.A.; Sir William Davidson Niven, K.C.B.; Professor John Perry, D.Sc.; Professor Ernest Henry Starling, M.D.; Professor William Augustus Tilden, D.Sc.

The following Papers were read :—

I. “ On the Nature of the Galvanotropic Irritability of Roots.” By Dr. A. J. Ewart and Miss Bayliss. Communicated by F rancis Darwin, For. Sec. R.S.

II. “ Some Observations on JVelwit Hooker-f.” By Professor H. H. W. P earson. Communicated by A. C. Seward, F.R.S.

III. “On the Effects of Alkalies and Acids, and of Alkaline andAcid Salts, upon Growth and Cell Division in the Fertilised Eggs of Echinus esculentus. A Study in Relationship to the Causation of Malignant Disease.” By Professor B. Moore, Dr. H. E. Roaf, and E. Whitley. Communicated by Professor W. A. Herdman, F.R.S.

IV. “ A Note on the Effect of Acid, Alkali, and certain Indicatorsin Arresting or otherwise Influencing the Development of the Eggs of Pleuronectes platessa and Echinus esculentus.” ByE. Whitley. Communicated by Professor W. A. Herdman,F. R.S.

V. “ On Certain Physical and Chemical Properties of Solutions of Chloroform and other Anaesthetics. A Contribution to the Chemistry of Anaesthesia. (Second Communication.)” By Professor B. Moore and Dr. H. E. Roaf. Communicated by Professor Sherrington, F.R.S.

VI. “ On the Possibility of Determining the Presence or Absence ofTubercular Infection by the Examination of a Patient’s Blood or Tissue Fluids.” By Dr. A. E. Wright and Staff- Surgeon S. T. Reid, R.N. Communicated by Sir J. Burdon Sanderson, Bart., F.R.S.

VII. “ On Spontaneous Phagocytosis and on the Phagocytosis which'is obtained with the Heated Serum of Patients who have responded to Tubercular Infection, or, as the case may be, to the Inoculation of a Tubercle Vaccine.” By Dr. A. E. Wright and Staff-Surgeon S. T. Reid, R.N. Communicated by Sir J. Burdon Sanderson, Bart., F.R.S.

VIII. “ On the Occurrence of Heterotypical Mitoses in Cancer.” By Dr. E. F. Basiiford and J. A. Murray. Communicated by Professor J. Rose Bradford, F.R.S.

iii

The following Papers were read :—

I. “ The Physical and Chemical Properties of Iron Carbonyl.” By Sir James Dewar, F.R.S., and H. 0 . J ones.

II. “ The Transit of Ions in the Electric Arc.” By A. A. Campbell Swinton. Communicated by the Hon. C. A. Parsons, C.B., F.R.S.

III. “ First Photographs of the Canals of Mars.” By Professor P ercival Lowell. Communicated by Sir J. N orman Lockyer, K.C.B., F.R.S.

IY. “ On the Laws of Radiation.” By Professor J. H. J eans. Communicated by Professor J. Larmor, Sec. R.S.

Y. “ The Pressure of Explosions. Experiments on Solid and Gaseous Explosives.” By J. E. P etavel. Communicated by Professor A. Schuster, F.R.S.

VI. “ The Accurate Measurement of Ionic Velocities.” By Dr. R. B. D enison and Dr. B. D. Steele. Communicated by Sir W illiam Ramsay, K.C.B., F.R.S.

VII. “ On Newton’s Rings formed by Metallic Reflection.” By Professor R. C. Maclaurin. Communicated by Professor J. Larmor, Sec. R.S.

VIII. “ The Electrical Conductivity of Dilute Solutions of Sulphuric Acid.” By W. C. D. W hetham, F.R.S.

November 23, 1905.

Sir W. D. NIVEN, Vice-President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

In pursuance of the Statutes, notice of the ensuing Anniversary Meeting was given from the Chair, and the list of the Officers and ^Council for the ensuing year proposed by the Council for election was read as follows :—

President.—The Lord Rayleigh, O.M., M.A., D.C.L.Treasurer.—Alfred Bray Kempe, M.A.0 . ("Professor Joseph Larmor, D.Sc., D.C.L., LL.D.

Secretanes.—j_sir Archibald Geikie> D.GL-j Sc.D., LL.D.

Foreign Secretary.—Francis Darwin, M.A., M.B.Other Members of the Council.—Shelford Bidwell, Sc.D.; Sir

T. Lauder Brunton, M.D.; Professor J. Norman Collie, Ph.D.; Pro­fessor Wyndham R. Dunstan, M.A. ; Professor John Bretland Farmer,

November 30, 1905.

Anniversary Meeting.

Sir WILLIAM HUGGINS, K.C.B., O.M., President, in the Chair.

The Report of the Auditors of the Treasurer’s accounts was read, and the thanks of the Society were given to the Treasurer and to the Auditors.

The List of Fellows deceased and the List of Fellows elected into the Society since the last Anniversary were read.

The Report to the Society from the Council, upon the work during the past year, was, upon the motion of the President, received.

The President delivered his Anniversary Address.On the motion of Sir Oliver Lodge, seconded by Dr. Teall, the thanks

of the Society were given to the President for his address, and he was requested to allow it to be printed.

The Awards of the Medals for the year were announced as follows, and the Medals were presented from the Chair :—

The Copley Medal....... To Professor D. I. Mendeleeff.A Royal Medal ........... ,, Professor J. H. Poynting, F.R.S.A Royal Medal ........... „ Professor C. S. Sherrington, F.R.S.The Davy Medal........... „ Professor A. Ladenburg.The Hughes Medal....... „ Professor A. Righi.

The President having, with the consent of the Society, nominated Professor M. J. M. Hill and the Rev. T. R. R. Stebbing as Scrutators, to assist the Secretaries in examining the balloting lists for the election of Council and Officers, the votes of the Fellows present were taken. The Scrutators reported that the Council and Officers nominated at the preceding meeting had been duly elected, and their names were accordingly announced from the Chair.

The thanks of the Society were given to the Scrutators.

December 7, 1905.

Lord RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the Table, and thanks ordered for them.

v i

The President announced that he had appointed as Vice- Presidents—

The Treasurer.Sir Lauder Brunton.Sir W. D. Niven.Professor W. A. Tilden.

The follov\ring Papers were read:—

I. “ The Periodogram and its Optical Analogy; with an Illustra­tion from a Discussion of Observations of Sun-spots.” By Professor A. Schuster, F.R.S.

II. “ On a Property which holds good for all Groupings of a Normal Distribution of Frequency for two Variables, with Applications to the Study of Contingency Tables for the Inheritance of Unmeasured Qualities.” By Professor G. Udny Yule. Communicated by Professor 0. H enrici, F.R.S.

III. “ On the Influence of Bias and of Personal Equation in Statisticsof Ill-defined Qualities: an Experimental Study.” ByProfessor G. U dny Yule. Communicated by Professor 0. H enrici, F.R.S.

IV. “ On the Inheritance of Coat-colour in Horses.” By C. C. Hurst.Communicated by W. Bateson, F.R.S.

V. “ Further Experiments on Inheritance in Sweet Peas and Stocks (Preliminary Account).” By W. Bateson, F.R.S., E. R. Saunders, and R. C. P unnett.

VL “ A Biometrical Study of Conjugation in Paramsecium.” By Dr. Raymond P earl. Communicated by Professor K. Pearson, F.R.S.

VII. “ On Mathematical Concepts of the Material World.” ByA. N. Whitehead, F.R.S.

VIII. “ The Determination of the Osmotic Pressure of Solutions bythe Measurement of their Vapour Pressures.” By the Earl of Berkeley and E. G. Hartley. Communicated by W. C. D. Whetham, F.R.S.

IX. “ The Vertical Temperature Gradients on the West Coast of Scotland and at Oxshott, Surrey.” By W. H. D ines, F.R.S.

X. “ The Combination of Hydrogen and Oxygen in contact with Hot Surfaces.” By Dr. W. A. Bone, F.R.S., and R. V. Wheeler.

XI. “ Fifth and Sixth Catalogues of the Comparative Brightness of the Stars :—In continuation of those printed in the ‘ Phil. Trans.’ for 1796-99.” (Prepared for press from the original

vii

MS. Records by Colonel J. Herschel, R.E., F.R.S.) By the late Dr. H erschel, LL.D., F.R.S.

XII. “ On the Cytology of Malignant Growths.” By Professor J. B. F armer, F.R.S., J. E. S. Moore, and C. E. W alker.

XIII. “ A Gas Calorimeter.” By C. V. Boys, F.IiA

XIV. “ Note on a Flagellate Parasite found ByMajor Ronald Ross, C.B., I.M.S., F.R.S.

December 14, 1905.

Lord RAYLEIGH, O.M., D.C.L., President, followed by Sir LAUDER BRUNTON, Vice-President, in the Chair.

A List of the Presents received was laid on the Table, and thanks ordered for them.

The following Papers were read :—

I. “ An Investigation into the Structure of the Lumbo-sacral- coccygeal Cord of the Macaque Monkey ( Sinicus)”By Miss M. P. F itzgerald. Communicated by ProfessorF. Gotch, F.R.S.

II. “ On the Distribution of Chlorides in Nerve Cells and Fibres.”By Professor A. B. Macallum and Miss M. L. Menten. Communicated by Professor W. D. Halliburton, F.R.S.

III. “ The Mammalian Cerebral Cortex, with special reference to itsComparative Histology. I.—Order Insectivora.” By Dr.G. A. W atson. Communicated by Dr. F. W. Mott, F.R.S.

IV. “ Observations on the Development of Ornithorhynchus.” ByProfessor J. T. W ilson and Dr. J. P. H ill. Communicated by Sir W illiam Turner, K.C.B., F.R.S.

V. “ Further Work on the Development of the Hepatomonas of Kala-Azar and Cachexial Fever from Leishman-Donovan Bodies.” By Dr. L. Rogers. Communicated by Sir Michael F oster, K.C.B., F.R.S.

VI. “ The Action of Anaesthetics on Living Tissues. Part I.—The Action on Isolated Nerve.” By Dr. N. H. Alcock. Com­municated by Dr. A. D. Waller, F.R.S.

VII. “ Report on the Psychology and Sociology of the Todas and other Indian Tribes.” By Dr. W. H. R. Rivers. Com­municated by the Secretaries.

viii

VIII. “ On the Sexuality and Development of the Ascocarp of Humana granulatu,Quel.” By Y. H. Blackman and MissH. C. I. Fraser. Communicated by Professor H. Marshall Ward, F.R.S.

IX. “ On the Microsporangia of the Pteridospermese, with Remarks on their Relationship to Existing Groups.” By R. KlDSTON, F.R.S.

X. “ The Araucariese, Recent and Extinct.” By A. C. Seward, F.R.S., and Miss S. 0. Ford.

XL “ On the Spectrum of the Spontaneous Luminous Radiation of Radium. Part IY.—Extension of the Glow.” By Sir W. H uggins, K.C.B., O.M., F.R.S., and Lady Huggins.

The Society adjourned over the Christmas vacation to Thursday, January 18, 1906.

ix

January 18, 1906.

LORD RAT LEIGH, O.M., D.C.L., President, in the Chair.

Mr. Samuel Hough (elected 1902) was admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

In pursuance of the Statutes, the names of Candidates for election into the Society were read as follows :—

Adams, Frank Dawson.Anderson, Hugh Kerr.Anderson, Tempest.Andrews, Charles William.Baly, Edward Charles Cyril. Barlow, Sir Thomas.Bather, Francis Arthur.Beilby, George Thomas.Biles, Professor John Harvard Blackman, Frederick Frost. Blakesley, Thomas Holmes. Blythswood, Lord.Braithwaite, Robert.Bromwich, Thomas John I’Anson. Bruce, John Mitchell.Budge, Ernest A. Wallis. Chattaway, Frederick Daniel. Chattock, Arthur Prince.Cowell, Philip Herbert.Crompton, Rookes Evelyn B. Crossley, Arthur William.Cushny, Professor Arthur Robert­

son.Dixon, Professor Henry H. Donnan, Professor Frederick

George.Durston, Sir Albert John.Forbes, Henry Ogg.Fox, Francis.Gamble, Frederick William. Gardiner, John Stanley.Garrod, Archibald Edward. Garwood, Professor Edmund

Johnston.Gowlanu, Professor William.

Gray, Professor Thomas.Green, Professor Arthur George. Hadfield, Robert Abbott.Hall, Alfred Daniel.Hamilton, Professor David James.. Harker, John Allen.Harmer, Frederic William.Heape, Walter.Hoyle, William Evans.Innes, Robert Thorburn Ayton. Jeans, Professor James Hopwood. Knott, Cargill Gilston.Lees, Charles H.Lewis, William James.Lyons, Capt. Henry George. Macallum, Archibald B. McFadyean, Sir John.Major, Charles Immanuel Forsyth.. Marsh, Howard.Marsh, James Ernest.Masterman, Arthur Thomas. Matthey, Edward.Maunder, Edward Walter.Mill, Hugh Robert.Mitchell, Peter Chalmers.Moore, John Edmond Shorec. Morley, Professor Frank.Oliver, George.Parsons, Professor Frederick Gy mer. Pembrey, Marcus Seymour. Petavel, John Ernest.Plimmer, Henry G.Pocock, Reginald Innes.Ridley, Henry Nicholas.Sclater, William Lutley.

X

Sharpe, R. Bowdler. rJSidgreaves, Rev. Walter. ^Smith, Professor Grafton Elliot. ASmith, James Lorrain. AStapf, Otto. AStromeyer, Johann Phillip E. C. ASwinburne, James. 1Swinton, Alan Archibald Campbell. ̂Thorpe, Jocelyn Field.

The following Papers were read:—

Treves, Sir Frederick.Vernon, Horace Middleton. Willis, John Christopher.Wilson, Harold A.Wilson, Professor James Thomas. Wright, Almroth Edward.Young, Professor Alfred H. Young, William Henry.

I. “ The Factors which Determine the Production of Intraocular Fluid.” By E. E. Henderson and Professor E. H. Star­ling, F.R.S.

II. “ A Critical Account of some Anomalous Conditions of the Cerebrum in the Human Foetus.” By Dr. W. L. H. Duck­worth. Communicated by Professor A. Macalister, F.R.S.

III. “ A Case of Regeneration in Polychaete Worms.” ByA. T. Watson. Communicated by Professor C. S. Sher­rington, F.R.S.

IV. “ On the Infection, Histology, and Development of the UredoStage in certain Uredinse.” By I. B. P. Evans. Com­municated by Professor H. Marshall Ward, F.R.S.

V. “ On the Synapsis in Amphibia.” By J. E. S. Moore and Miss A. L. Embleton. Communicated by Professor J. B. Farmer, F.R.S.

VI. “ On the Constancy of Form among the Synaptic Gemini (Heterotype Chromosomes) in Certain Animals.” By J. E. S. Moore and G. Arnold. Communicated by Professor J. B. Farmer, F.R.S.

VII. “ The Growth of the Oocyte in Antedon: a Morphological Study in the Cell Metabolism.” By G. C. Chubb. Com­municated by Professor E. H. Starling, F.R.S.

VIII. “ Observations on the Life-History of Leucocytes.” By C. E. Walker. Communicated by Professor C. S. Sher­rington, F.R.S.

IX. “ A Study of the Mechanism of Carbon Assimilation in Green Plants.” By F. L. U sher and J. H. Priestley. Com­municated by Professor M. W. Travers, F.R.S.

X. “ Note on the Progeny of Chestnut Thoroughbred Horses.” By W. F. R. Weldon, F.R.S.

January 25, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, followed by the Treasurer, in the Chair.

Professor John George Adami (elected 1905) was admitted into the "Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read:—

I. “ Experiments on the Chemical Behaviour of Argon and Helium.” By Dr. W. T. Cooke. Communicated by SirW. Ramsay, K.C.B., F.R.S.

II. “ The Vapour Pressure in Equilibrium with Substances holding Varying Amounts of Moisture.” Parts I and II. By Professor F. T. Trouton, F.R.S., and Miss B. Pool.

III. “ Note on Heusler’s Magnetic Alloy of Manganese, Aluminium,and Copper.” By Professor A. Gray, F.R.S.

IV. “ On the Overstraining of Iron by Tension and Compression.”By Dr. J. Muir. Communicated by Professor A. Gray, F.R.S.

V. “ On the Effect of High Temperature on Radium Emanation.” By W. Makower. Communicated by Professor A. Schuster, F.R.S.

VI. “ Observations and Photographs of Black and Grey Soap Films.” By H. Stansfield. Communicated by Professor A. Schuster, F.R.S.

VII. “ Galvanic Cells produced by the Action of Light. The. Chemical Statics and Dynamics of Reversible and Irre­

versible Systems under the Influence of Light.” Second communication. By Dr. M. W ilderman. Communicated by Dr. L. Mond, F.R.S.

VIII. “ Artificial Double Refraction due to HColotropic Distribution,with Application to Colloidal Solution and Magnetic Fields. ” By T. H. Havelock. Communicated by Professor J. Larmor, Sec. R.S.

IX. “ An Electrical Measuring Machine for Engineering Gauges and other Bodies.” By Dr. P. E. Shaw . * Communicated by Professor J. H. Poynting, F.R.S.

xii

X. “ The Relation between the Osmotic Pressure and the Vapour Pressure of a Solution.” By W. Spens. Communicated by W. C. D. W hetham, F.R.S.

XI. “ The Elliptic Integral in Electro-magnetic Theory.” By Professor A. G. Greenhill, F.R.S.

XII. “ On the Simple Group of Order 25920.” By Professor W. Burnside, F.R.S.

XIII. “ On Metallic Reflection and the Influence of the Layer of Transition.” By Professor R. C. Maclaurin. Com­municated by Professor J. Larmor, Sec. R.S.

xiii

February 1, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, followed by Sir LAUDER BRUNTON, Vice-President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read:—

I. “ On the Filtration of Crystalloids and Colloids through Gelatine, with Special Reference to the Behaviour of Hsemo- lysins.” By J. A. Craw. Communicated by Dr. L. H ill,E. R.S.

II. “ Chemical Action of Bacillus ladis aerogenes (Eseberich) onGlucose and Mannitol: Production of 2 : 3-Butyleneglycol and Acetylmethylcarbinol.” By Dr. A. Harden and G. S. W alpole. Communicated by Dr. C. J. Martin, F.R.S.

III. “ On Voges and Proskauer’s Reaction for certain Bacteria.” ByDr. A. Harden. Communicated by Dr. C. J. Martin, F.R.S.

IV. “ The Quantitative Estimation of Small Quantities of Nickel inOrganic Substances.” By H. W. Armit and Dr. A. Harden.

. Communicated by Dr. C. J. Martin, F.R.S.V. “ The Alcoholic Ferment of Yeast-Juice.” By Dr. A. Harden

and W. J. Young. Communicated by Dr. C. J. Martin,F. R.S.

VI. “ On the Function of Silica in the Nutrition of Cereals. Part I.”By A. D. Hall and C. G. T. Morison. Communicated by Professor H. E. Armstrong, F.R.S.

VII. “ On the Origin of the Sertoli or Foot Cells of the Testis.” By C. E. W alker and Miss A. L. Embleton. Communicated by Professor C. S. Sherrington, F.R.S.

VIII. “ Studies on Enzyme Action—Lipase.” By Maurice N icloux. Communicated by Professor Halliburton, F.R.S.

IX. “ A Further Communication on the Specificity and ActionVitro of Gastrotoxin.” By Dr. C. Bolton. Communicated by Dr. S. Martin, F.R.S.

xiv

February 8, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ On Roche’s Ellipsoids and on Allied Problems relating to Satellites.” By Sir George H. Darwin, K.C.B., F.R.S.

II. “ Polarisation in Secondary Rontgen Radiation.” By Dr. C. G. Barkla. Communicated "by Professor J. J. Thomson, E.R.S.

III. “ Ionic Size in Relation to the Physical Properties of Aqueous Solutions.” By W. R. Bousfield, K.C. Communicated by Professor J. Larmor, Sec. R.S.

IY. “ Explosions of Coal-Gas and Air.” By Professor B. Hopkinson. Communicated by Professor Ewing, F.R.S.

V. “ On Periodicities in Sunspots.” By Professor A. Schuster, F.R.S.

YI. “ Constants of Explosion of Cordite and of Modified Cordite.” By Dr. Robert Robertson. Communicated by Colonel H. C. L. Holden, F.R.S.

February 15, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read:—

I. “ The Influence of Increased Barometric Pressure on Man. No. 1.” By Dr. L. H ill, F.R.S., and M. Greenwood.

II. “ On the Existence of Cell-Communications between Blastomeres.” By C. Shearer. Communicated by Adam Sedgwick, F.R.S.

III. “ Innervation of Antagonistic Muscles. Ninth Note.—Successive Spinal Induction.” By Professor C. S. Sherrington, F.R.S.

XV

TV. “ The Chemical Constitution of Protoplasm as shown by the Rate of Tissue Disintegration.” By Dr. H. M. Vernon. Com­municated by Professor F. Gotch, F.R.S.

V. “ The Development of the Head-Muscles of the Common Fowl ( Gattusdomesticus), together with some Remarks on the Head- Muscles of Reptiles.” By Professor F. H. Edgeworth. Communicated by Professor A. Macalister, F.R.S.

VI. “ Observations on the Labyrinth of certain Animals.” By A. A. Gray, M.D., F.R.S.E. Communicated by Professor J. G. McKendrick, F.R.S.

February 22, 1906.

LORD RAYLEIGH, O.M., D.G.L., President, in the Chair.

Mr. Gilbert Thomas Walker (elected 1904) was admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ On the Coefficient of Viscous Traction and its Relation to that of Viscosity.” By Professor F. T. Trouton, F.R.S.

II. “ Contributions to our Knowledge of the Poison Plants of Western Australia. Part I.—Cygnine.” By E. A. Mann andW. H. Ince. Communicated by Professor N orman Collie,F.R.S.

xvi

March 1, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

In pursuance of the Statutes, the names of the Candidates recom­mended for election were read from the Chair as follows :—

Andrews, Charles William.Beilby, George Thomas.Blackman, Frederick Frost. Bromwich, Thomas John I’Anson. Cowell, Philip Herbert.Heape, Walter.Jeans, James Hopwood.Lees, Charles Herbert.

Lyons, Henry George, Capt. R.E, Macallum, Archibald B.Marsh, James Ernest.Mitchell, Peter Chalmers. Swinburne, James.Wilson, Harold A.Wright, Almroth Edward.

The following Papers were read

I. “ An Experimental Enquiry into the Factors which Determinethe Growth and Activity of the Mammary Glands.” By Miss J. E. Lane-Claypon and Professor E. H. Starling, F.R.S.

II. “ The Specificity of the Opsonic Substances in the Blood Serum.”By Dr. W. B ulloch and G. T. Western. Communicated by Leonard H ill, F.R.S.

III. “ The Internal Anatomy of Stomoxys.” By Lieut. F. Tulloch, R.A.M.C. Communicated by Professor E. Ray Lankester, F.R.S.

March 8, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ The Microscopic Changes in the Nervous System in a Case of Chronic Dourine or ‘ Mai de Coit,’ and Comparison of the Same with those found in Sleeping Sickness.” By Dr. F. W. Mott, F.R.S.

xvii

II. “On the Relationship between Haemolysis and Phagocytosis ofRed Blood Cells.” By Dr. R. D. Keith. Communicated by Dr. Leonard Hill, F.R.S.

III. “ Upon the Properties of an Antityphoid Serum obtained fromthe Goat.” By Dr. A. Macfadyen. Communicated by Dr. C. J. Martin, F.R.S.

March 15, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read:—

I. “ A Discussion of Atmospheric Electric Potential Results at Kew from Selected Days during the Seven Years 1898 to 1904.” By Dr. C. Chree, F.R.S.

II “ On the Specific Heat of, Heat Flow from, and other Phenomena of the Working Fluid in the Cylinder of the Internal Combus­tion Engine.” By Dugald Clerk. Communicated by the Hon. C. A. Parsons, C.B., F.R.S.

March 22, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The Bakerian Lecture “ On Recent Advances in Seismology ” was delivered by Professor J ohn Milne, F.R.S.

The following Papers were read:—

I. “ On Methods whereby the Radiation of Electric Waves may be Mainly Confined to Certain Directions, and whereby the Receptivity of a Receiver may be Restricted to Electric Waves Emanating from Certain Directions.” By Chevalier G. Marconi. Communicated by Professor Fleming, F.R.S.

IT. “ A Note on the Theory of Directive Antennae or Unsymmetrical Hertzian Oscillators.” By Professor J. A. Fleming, F.R.S.

\

xviii

March 29, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ On the Dilatational Stability of the Earth.” By Lord Rayleigh, O.M., Pres. R.S.

II. “ On the Observations of Stars made in some British Stone Circles. Second Note.” By Sir J. N orman Lockyer, K.C.B., F.R.S.

III. “ The Calculation of Ellipsoidal Harmonics.” By Sir W illiam D. N iven, K.C.B., F.R.S.

April 5, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ On Retardation of the Discharge of an Electroscope by means of certain Radio-active and other Substances.” By Dr. W. S. Lazarus-Barlow. Communicated by Sir William Ramsay. K.C.B., F.R.S.

II. “ On a Mineral which retards the Rate of Discharge of an Electro­scope.” By Dr. E. H. B uchner. Communicated by Sir W illiam Ramsay, K.C.B., F.R.S.

III. “ On a New Method of obtaining Continuous Currents from aMagnetic Detector of the Self-restoring Type.” By L. H. Walter. Communicated by Professor Ewing, F.R.S.

IV. “ On the Distribution of Radium in the Earth’s Crust, and on theEarth’s Internal Heat.” By Hon. R. J. Strutt, F.R.S.

V. “ On the Physiological Action of a recently discovered African Arrow Poison.” By Dr. C. Bolton. Communicated by Pro­fessor S. Martin, F.R.S.

#The Society adjourned over the Easter Recess to Thursday, May 3.

Annual Meeting for the Election of Fellows.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

The Statutes relating to the Election of Fellows having been read, Mr. Horace Brown and Professor Schafer were, with the consent of the Society, nominated Scrutators, to assist the Secretaries in the examination of the balloting lists.

The votes of the Fellows present were collected, and the following Candidates were declared duly elected into the Society:—

May 3, 1906.

Andrews, Charles William. Beilby, George Thomas. Blackman, Frederick Frost. Bromwich, Thomas John I’A. Cowell, Philip Herbert. Heape, Walter.Jeans, James Hop wood.Lees, Charles Herbert.

Lyons, Henry George, Captain R.E. Macallum, Archibald B.Marsh, James Ernest.Mitchell, Peter Chalmers. Swinburne, James.Wilson, Harold A.Wright, Almroth Edward.

Thanks were given to the Scrutators.

May 3, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ On a Static Method of Comparing the Densities of Gases. ’ By R. Threlfall, F.R.S.

II. “ The Stability of Submarines.” By Sir W illiam H. W hite,K.C.B., F.R.S.

III. “ The Action on Bacteria of Electrical Discharges of HighPotential and Rapid Frequency.” By A. G. R. F oulerton and A. M. Kellas. Communicated by Professor J. Rose Bradford, F.R.S.

IV. “ The Action of Pituitary Extracts upon the Kidney.” ByProfessor E. A. Schafer, F.R.S., and P. T. Herring.

xxi«

LORD RAYLEIGH, O.M., D.C.L., President, followed by Professor TILDEN, Vice-President, in the Chair.

Mr. George Thomas Beilby, Dr. Peter Chalmers Mitchell, Mr. James Swinburne, and Professor Harold A. Wilson were admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read:—I. “ On Adsorption and Occlusion : the Law of Distribution in the

case in which one of the Phases possesses Mechanical Rigidity.” By Professor M. W. Travers, F.R.S.

II. “ Cyanogenesis in Plants. Part IV—The Occurrence of Phaseo-lunatin in Common Flax (Linurn Part V—The Occurrence of Phaseolunatin in Cassava ( Aipiand Manihot utilissima).” By Professor W. R. Dunstan, F.R.S., Dr. T. A. Henry, and Dr. S. J. M. Auld .

III. “ A Variety of Thorianite from Galle, Ceylon.” By ProfessorW. R. Dunstan, F.R.S., and B. Mouat J ones.

IV. “ The Mechanism of Carbon Assimilation in Green Plants; thePhotolytic Decomposition of Carbon Dioxide Vitro.” By F. L. U sher and J. H. Priestley. Communicated by Professor M. W. Travers, F.R.S.

V. “ The Action of Anaesthetics on Living Tissues. Part II—The Frog’s Skin.” By Dr. N. H. Alcock. Communicated by Dr. A. D. Waller, F.R.S.

May 10, 1900.

May 17, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.Dr. Charles William Andrews, Mr. Philip Herbert Cowell, Mr.

Walter Heape, Captain Henry George Lyons, Mr. James Ernest Marsh, and Dr. Almroth Edward Wright were admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read:—I. “ Determinations of Wave-Length from Spectra obtained at

the Total Solar Eclipses of 1900, 1901, and 1905.” By Professor F. W. Dyson, F.R.S.

xxii

II. “ Some Stars with Peculiar Spectra.” By Sir N orman Lockyer, K.C.B., F.R.S., and F. E. Baxandall.

III. “ An Apparent Periodicity in the Yield of Wheat for EasternEngland, 1885-1905.” By Dr. W. N. Shaw, F.R.S.

IV. “ Some Physical Constants of Ammonia : a Study of the Effectof Change of Temperature and Pressure on an Easily Con­densible Gas.” By Dr. E. P. Perman and J. H. D avies. Communicated by Professor E. H. Griffiths, F.R.S.

May 24, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

Mr. Frederick Frost Blackman, Professor Thomas John PAnson Bromwich, and Dr. Charles Herbert Lees were admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

The Croonian Lecture—“ On Nerve-Endings and on Special Excitable Substances in Cells ”—was delivered by Professor J. N. Langley, F.R.S.

May 31, 1906.

LORD RAYLEIGH, O.M., D.C.L., President, in the Chair.

The Right Hon. the Lord Curzon of Kedleston, elected 1898, was admitted into the Society.

A List of the Presents received was laid on the table, and thanks ordered for them.

The following Papers were read :—

I. “ On the Main Source of ‘ Precipitable ’ Substances and on the Hole of the Homologous Proteid in Precipitin Reactions.”

By D. A. W elsh and H. G. Chapman. Communicated by Dr. C. J. Martin, F.R.S.

II. “ The Viscosity of the Blood.” By A. Du P re D enning andJ. H. W atson. Communicated by Professor F. Gotch, F.R.S.

xxiii- . t

III. “ The Affinity Constants of Amphoteric Electrolytes. I.—Methyl-Derivatives of Para-Aminobenzoic Acid and of Glycine.” By J. J ohnston. Communicated by Professor J. Walker, F.R.S.

IY. “ The Affinity Constants of Amphoteric Electrolytes. II.—Methyl Derivatives of Ortho- and Meta-Aminobenzoic Acids.” By A. C. Gumming. Communicated by Professor J. Walker, F.R.S.

Y. “ The Affinity Constants of Amphoteric Electrolytes. III.— Methylated Amino-Acids.” By Professor J. Walker, F.R.S.