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TEXTBOOK OFGENERAL BOTANYBy R. M. Holman, Associate Professor of Botany,College of Letters and Science, and W. W. Rob-bins, Professor of Botany, College of Agriculture;both at the University of CaliforniaThird EditionThe teachers in the 476 colleges and universitiesthat have used "Holman and Robbins" will wel-come the appearance of this third, revised edition.Certain additions and changes have been made dueto the enlargement of botanical knowledge duringthe seven years since the publication of the lastedition. Moreover, the suggestions from teacherswho have used the text have been utilized by theauthors where possible.626 pages 6 by 9 $4.00

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Recent Wiley BooksINTRODUCTION TO A MANUALPHYSIOLOGICAL CHEMISTRY OF BIOCHEMISTRYBy Meyer Bodansky, Director of Laboratories,John Sealy Hospital, Galveston, Texas, and Pro-fessor of Pathological Chemistry, University ofTexas. Third EditionA slight enlargement of the book has been foundadvisable in order to include adequate accounts ofsome of the newer developments. Thus additionalspace has been given to the discussion of the chem-istry of enzymes, the regulation of gastric acidity,muscle metabolism, the mineral requirements innutrition, the vitamins, hormones and many othertopics. The general point of view of the book re-mains the same.654 pages 6 by 9 $4.00

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