A. J. Endow follows, entitled "The psychological impact of pregnancy on 

 the family". From then on, the treatment is strictly chronological, encom- 

 passing successively the first through seventh weeks, the third through sixth 

 lunar months, and finally the third trimester of pregnancy, and birth. All 

 chapters have a brief summary of the main events. After the chapter on the 

 seventh week a review of the embryonal period is inserted, which contains 

 a summary of organogenesis arranged by organ systems. The book ends with 

 a synopsis of the main abnormalities of development. 



All illustrations were drawn especially for this book; unfortunately most 

 of them are rather crude and unrealistic, while the labeling is not particularly 

 clear. There is a list of further reading at the end of each chapter. 



22 AN OUTLINE OF HUMAN EMBRYOLOGY 



1968 

 By H. Wang William Heinemann Medical Books Ltd. 



263 pp., 264 figs., 27 tbs. London 



Price: 45 s. 



This book is perhaps best characterized by a quotation from the preface: 



"I believe there is need for a short treatise on human embryology that will serve either 

 as a textbook or as a reference book. The present volume is written with this purpose in 

 mind. It tells the story of human developmental anatomy simply, directly, and to the point 

 with as few details and as many illustrations as possible so that anyone who has had 

 a course in Introduction to Biology would be able to follow". 



The organization of the book is on the whole conventional. The style is 

 fluent and serves to make the subject interesting to the medical student. 

 Much use is made of schemes and tables facilitating comprehension and 

 memorizing. Small print is used wherever necessary for interesting subsidiary 

 information, and also to describe the most frequent anomalies of development. 

 There is a brief but adequate chapter on experimental embryology and 

 teratology, in which some attention is devoted to the role of genes in devel- 

 opment. The endocrine organs are treated together in a separate chapter. 

 The book contains a number of minor inaccuracies, but these will no doubt 

 be weeded out in subsequent editions. 



The numerous illustrations were especially prepared for this book, and 

 with great success. They strike the correct balance between realism and 

 abstraction required for the elucidation of a difficult subject. The book has 

 a brief list of further reading, and a good subject index. 



23 ORIGINS OF PHYSIOLOGICAL REGULATIONS 



1968 



By E. F. Adolph Academic Press 



147 pp., 32 figs., 5 tbs. New York - London 



Price: $ 7.50; 70 s. 



The author of this monograph is Emeritus Professor of Physiology, Uni- 

 versity of Rochester (N.Y.). He has been actively engaged in investigations 

 on physiological regulation for three decades or longer. Here is a physiologist 

 who has turned to the developing organism in the hope of increasing his 

 insight into the principles of regulation by studying its origins. He is not 

 interested in development per se; nevertheless, his book is of great interest 

 to developmental biologists, because it helps them to view the embryo as a 

 self-contained, functioning organism. The book is intended for research 

 workers and advanced students. The treatment is not exhaustive, but aims 

 at uncovering general patterns by means of representative examples; the 

 authors's style is highly personal. 



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