SCIENCE— ADVERTISEMENTS 



MONOGRAPHS ON EXPERIMENTAL BIOLOGY 



Just Published 

 The Biology of Death 



By RAYMOND PEARL, Johns Hopkins University 

 64 Illustrations. 275 Pages. $2.50 



The author has endeavored in this volume to bring to- 

 gether under a unified viewpoint some of the more im- 

 portant contributions which have been made to our knowl- 

 edge of natural death, from three widely scattered sources : 

 namely, general biology, experimental biology, and stat- 

 istical and actuarial science. It is impossible in a limited 

 amount of space to cover a field so wide with anything 

 approaching- completeness. To do so would require a series 

 of volumes in nlace of one. This has not been the au- 

 thor's object; he has instead hoped that the very limitation 

 of this work might stimulate the reader to penetrate for 

 himself further into the literature of this fascinating and 

 important field of biology. 



Injury, Recovery and Death In Rela- 

 tion to Conductivity and Permeability 



By W. J. V. OSTERHOUT, Harvard University 

 96 Illustrations. 259 Pages. $2.50 



This volume endeavors to treat certain aspects of 

 biology according to the spirit and methods of the exact 

 sciences. The treatment is confined to certain fundamen- 

 tal problems which have been studied quantitatively. These 

 studies lead to a theory of some aspects of injury, recovery, 

 and death, as well as of antagonism and permeability. The 

 behavior of the organism in these respects may be predicted 

 with a satisfactory degree of accuracy by means of the 

 eqiiations which express the theory in mathematical form. 

 After an introduction the author takes up the problem of 

 Methods of Measuring Electrical Conductivity, The Me- 

 chanism of the Process of Death, Injury and Recovery. 

 Antagonism, Anesthesia, Conductivity and Permeability, 

 and concludes with a bibliography. 



Smell, Taste and Allied Senses in the 



Vertebrates 



By G. H. PARKER, Sc.D., Harvard University 

 37 Illustrations. 192 Pages. $2.50 



Sense organs have always excited general interest, for 

 they are the nieans of approach to the human mind. With- 

 out them our intellectual life would be a blank. Although 

 the ear and the eye have commonly received most atten- 

 tion, the other sense organs, such as those of smell and of 

 taste, are in reality equally worthy of consideration. Smell 

 and taste, together with certain other senses not so well 

 known, form a more or less natural group in which there 

 is a certain amount of functional interrelation and genetic 

 connection, and it is from this standpoint that these senses 

 are considered in this volume. They illustrate in a way 

 principles common to other groups of sense organs, and 

 these principles will be found to be of an essentially dy- 

 namic character as contrasted with the older conceptidns in 

 which function has been brought into relation less inti- 

 mately with structure. 



Previously Issued 



The Nature of Animal Light 



E. NEWTON HARVEY, Ph.D. 

 Princeton University 



"This is exactly the kind of 

 monograph that is wanted — a 

 book on an interesting subject 

 written by an expert." — Jour- 

 nal of Physical Chemistry, 

 Ithaca, N. Y. 



Physical Basis of Heredity 



THOMAS HUNT MORGAN 

 Columbia University 



"The most complete account 

 extant of the mechanism of 

 heredity . . . Indispensable to 

 every serious student of the 

 subject." — Paul Popenoe in The 

 Journal of Heredity, Washing- 

 ton, D. C. 



"Every geneticist and euge- 

 nicist will want to own, read 

 through, and digest, Morgan's 

 'Basis of Heredity'." — Eugeni- 

 cal Ncivs. 



Forced Movements, Tropisms 

 and Animal Conduct 



TACQUES LOEB, M.D., Ph.D., ScD. 

 Rockefeller Institute 



"The monograph will be read 

 with interest by all workers in 

 this field." — Science. 



"The book provides many in- 

 teresting examples of the ani- 

 mal behavior . . . The reader 

 cannot fail to derive a stimulus 

 for further inquiries concern- 

 ing the nature of vital energy." 

 — American Journal of Science. 



Inbreeding and Outbreeding 



EDWARD M. EAST, Ph.D., Har- 

 vard University, and DON.ALD F. 

 JONES, ScD., Conn. Agric. Exp. Sta. 

 "Altogether this is a noble book 

 in which American science may well 

 take pride. It should form a part 

 of the required reading of every stu- 

 dent of biology, because nowhere else 

 is there brought together in such 

 clear and well digested form the re- 

 sults of a mass of experimental 

 work which has successfully lighted 

 a dark corner of biological science." 



The Elementary Nervous 

 Systenj 



G. H. PARKER, Sc.D. 



Harvard University 



"The book is invaluable to the be- 



haviorist."— Journal of Psychology. 



Each Illustrated, Price $2.50 



Descriptive Circular on Request 



PhaadelpUa J. g. LIPPINCOTT COMPANY London 



