19 



given to theoretical aspects, and less to facts. Considerable space has been 

 allotted to the discussion of some of the author's own contributions to the 

 science of embryology, and to their theoretical interpretations in particular. 

 The author's approach is many-sided, covering morphological, evolutionary, 

 genetical, cytological and cytochemical aspects of animal development. 



It is difficult to say which category of readers will benefit most by this book. 

 It is certainly not a book for undergraduate students, although the title might 

 at first suggest this. Several chapters will be read with interest by active 

 embryologists, but as a whole it seems best suited for postgraduate students 

 who want a stimulating introductory text, not burdened by too much factual 

 information. 



"GRUNDRISS DER ENTWICKLUNGSGESCHICHTE 



DES MENSCHEN" 



3^d edition, 1958 



by H. Ferner Ernst Reinhardt Verlag 



163 pp. with 86 figs Munchen/Basel 



(paper bound) Price: D.M. 4.90 



.This is a concise and inexpensive booklet designed for the use of medical 

 students. The first edition appeared in 1949. The typography is clear. The 

 illustrations are well-executed line-drawings, mostly redrawn after well-known 

 examples. There is an alphabetical index, but no bibliography, and no 

 literature-references are given in the text. 



"FOUNDATIONS OF EMBRYOLOGY" 



1958 

 by B. M. Patten Mc Graw-Hill Book Cy, Inc. 



578 pp. with 962 ill. New York, London, Toronto 



grouped as 313 figs., Price: 74 s. 



of which 24 in colour 



This book has been written for the use of students who have no previous 

 knowledge of embryology. Its aim is to tell the story of vertebrate development 

 as simply and clearly as possible, but with a very generous use of illustrations. 



The early stages until formation of the germ layers are based on a wide 

 range of animal groups, the laying down of the basic plan of the body is based 

 on the chick, and organogenesis on mammalian embryos. Stress is placed on 

 the basic similarity of the major developmental processes in the vertebrates as 

 a whole and on functional aspects. Comparative and experimental data are 

 used only in a supplementary way. 



An important aspect of the book is an appendix containing references for 

 collateral reading. It has been composed especially for the interested student, 

 and contains provocative but not too difficult articles, taken from readily 

 available journals in the English language. 



For those who know the author's previous books it is not necessary to say 

 that the illustrations of this book are again excellent. Where necessary they 

 bear extensive explanatory legends. 



