June 3, 1949, VoL 109

INTRODUCTION TO RADIOCHEMISTRYBy Gerhart Friedlander, Brookhaven National Laboratory,and Joseph W. Kennedy, Washington University

An introduction to the nature and applications of radiochemistry, written espe-cially for chemists. Over half the book is devoted to the fundamentals of nuclearphysics and radiochemistry, treated in a descriptive manner. An up-to-date tableof nuclear species (isotopes) is included in the appendix.

June 1949 Approx. 410 pages Illus. Probable price, $5.00

BIOLOGY OF DROSOPHILAEdited by M. Demerec, Carnegie Institution of Washington

This thorough volume treats in detail the anatomy, histology, and development ofDrosophila. It presents the basic norm as a standard for the analysis of experi-mentally induced genetic variation and deviation, and for other physiologicalstudies.September 1949 Approx. 572 pages 251 illus. Prob. price, $10.00

BORON TRIFLUORIDE AND ITS DERIVATWIVESBy Harold S. Booth, Western Reserve University,and Donald R. Martin, University of Illinois

This book facilitates investigations made with boron trifluoride by providing acomplete and organized presentation of the subject, its applications, and com-plexes. An extensive bibliography includes references to many recent articleson boron trifluoride when used as a catalyst.

August 1949 Approx. 296 pages Illus. Probable price, $5.00

FERTILITY AND HATCHABILITYOF CHICKEN AND TURKEY EGGS

Edited by Lewis W. Taylor, University of California, Berkeley

Written by nine collaborators who are specialists in their respective fields, thisbook emphasizes those phases of the subject which are of primary importance inactual poultry breeding or hatchery operations. An ideal book for poultry breed-ers and hatcherymen.August 1949 Approx. 406 pages Illus. Probable price, $5.00

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