23 



necessary supplement to the textbooks conceived on a more general basis. The 

 present text centres around the causal analysis of molluscan morphogenesis, a 

 field in which the author is one of the leading authorities. Comparative em- 

 bryological points of view have not been taken into consideration, while the 

 description of normal development has been subordinated to the main purpose 

 of the book. As far as experimental embryology and cytochemistry are 

 concerned, the author has aimed at giving a complete bibliography, covering 

 the last half century. 



The subject matter is organized into a series of chapters, each covering a 

 particular developmental period, and each divided into a descriptive part and a 

 section dealing with causal analysis. The series is opened by a chapter on 

 oogenesis, and closed by a chapter on organogenesis and a short chapter 

 summarizing the principal conclusions. The book is concluded by a bibliography, 

 and author, taxonomic and subject indexes. 



Every investigator working in this field, and many others, will want to 

 possess this volume, but for many the price will be a serious drawback. 



"AN ATLAS OF FETAL AND NEONATAL HISTOLOGY" 



1957 

 by Marie A. Valdes-Dapena J. B. Lippincott Cy. 



with a foreword by Edith L. Potter Philadelphia, Montreal 



200 pp. with 238 photomicrographs Price: $ 11.00 



This atlas has been designed in order to bridge a gap in the developmental 

 stages covered by human embryology textbooks on the one hand and histology 

 textbooks on the other. The period covered is that between about 4 months 

 gestation and an age of about 3 years. A knowledge of the constant and 

 rapid changes occurring during this period is essential for the interpretation of 

 pathological cases. 



There are 12 sections, each dealing with a particular organ system, and each 

 preceded by a short introduction furnishing the necessary basic information, 

 and concluded by a bibliography. A final section deals with miscellaneous 

 organs and tissues. 



The photomicrographs (all black and white) are generally good, but the 

 reproductions might have gained in several instances by the use of a finer grid. 

 For convenience the case numbers could have been printed in different type. 

 Otherwise the lay-out is admirable. 



"LA FONCTION OVARIENNE ET SON EXPLORATION" 



1956 

 by R. Vokaer Masson et Cie. 



108 pp. with 54 figs. Paris 



Price: 1100 Fr. 



The author has tried to give, in a limited number of pages, an overall picture 

 of the function of the human ovary, which might be of interest to both medical 

 practitioners and medical students. 



For the mammalian embryologist there does not seem to be much of direct 

 interest in this book. On the other hand it may be useful to have gathered 



