19 



"ELfiMENTS D'EMBRYOLOGIE" 



Second Edition, 1948 



by A. Celestino Da Costa Masson et Cie., Paris 



583 pp. with 492 illustrations Price: Frcs. 2690 



Although this textbook has been offered to the "Institut International d'Em- 

 bryologie" and has not been sent for review in the General Embryological In- 

 formation Service, we find this textbook, written in the French language, so 

 important that we take the liberty of announcing and reviewing it in the 1954 

 supplement of the G.E.I.S. 



This textbook is particularly designed for medical students, so that besides 

 two general parts dealing respectively with the formation of the gametes and 

 the development of the egg, the third part dealing with the development of the 

 various organ systems grouped according to their embryological affinities, is 

 particularly devoted to the mammalian development. There are few textbooks 

 on human embryology in which so much attention has been paid to general em- 

 bryological problems and in which so many pages deal with the development of 

 other vertebrates. The general chapters do not only concern with descriptive and 

 comparative embryology, as in the majority of textbooks on human develop- 

 ment, but also include experimental embryology, developmental genetics and 

 pathological development. These chapters are so comprehensive that we are 

 inclined to call this book rather a handbook than only a textbook as the author 

 very modestly states in the preface. We are very thankful that a second french 

 edition appeared in 1948 and hope that soon a third edition might be prepared 

 including the most recent interesting advances in the field of embryology. The 

 well organized text, the many bibliographical data and the well chosen figures 

 increase markedly the general value of this book. Unfortunately the paper on 

 which it is printed does not allow a satisfactory reproduction of autotypes. 

 We hope that for a next edition a good solution can be found for this technical 

 problem without leading to a considerable increase in the costs of publication. 

 The additional chapter on the history of embryology forms a very worthy 

 end of this work. 



We warmly recommend this very valuable book to all embryologists and 

 hope that not only medical students but also students in biology will use it as 

 a comprehensive guide into the many interesting problems of this field of 

 science. 



P. D. NIEUWKOOP 



"SEX-DETERMINATION" 

 Third Edition, 19-54 



by F. A. E. Crew Methuen & Co. Ltd., London 



68 pp. John Wiley & Sons, Inc., New York 



Price: 6 s. 6 d. 



The author emphatically states that this booklet presents only the main facts 

 and will particularly serve as a guide to further reading for students. It is 

 restricted to the cytological and the genetical aspects of sex-determination. 

 In nearly all the chapters the main approach of the problems is from the gene- 

 tical side so that especially a fair knowledge of general genetics is presupposed, 

 while also cytology must be familiar to the reader. The author did not try to 



