20 



"LABORATORY STUDIES IN DEVELOPMENTAL ANATOMY" 



1957 

 by Th. W. Torrey Burgess Publ. Co. 



124 pp. with 51 figs. Minneapolis 



Price: $ 2.75 



This laboratory manual is entirely adapted to a particular type of practical 

 course for zoology students. The underlying idea is that comparative anatomy 

 and embryology of the vertebrates should be and can be taught in one inte- 

 grated course, an idea which is being brought into practice in some Zoology 

 Departments in the U.S.A. today. 



The course opens with an introduction into basic vertebrate organization 

 based on Ammocoetes. Then follow cleavage, gastrulation and neurulation in 

 Amphioxus and the frog, and early embryogeny of the chick. After the extra- 

 embryonic membranes have been dealt with, the further treatment is by organ 

 systems. In each of these, anatomy and embrology are treated in a single 

 sequence. For reasons of time-saving certain organs such as the skin and the 

 musculature have been left out of consideration altogether, a feature which 

 reduces the usefulness of the book in those instances where time is more 

 abundant. 



The species used are: shark, Amia, Necturus, chick, cat, pig and others. 

 Very good, well-selected line drawings and diagrams serve as illustrations. 



THE EVOLUTION OF DEVELOPMENT" 

 1958 

 by J. T. Bonner Cambridge Univ. Press 



103 pp. with 33 figs. Price: 17 s. 6 d. 



The three chapters of this little book represent three special lectures given 

 by the author at University College, London. The nature of the contents of 

 the book is largely theoretical and speculative, and its purpose is to be thought- 

 provoking, and to provide a wider view of development. 



The first chapter ("The origin of development") deals essentially with the 

 question of what necessitated the appearance of the phenomenon of develop- 

 ment from unicellularity to multicellularity during evolution, and in which 

 different ways this end was achieved. The importance of size, variability, and 

 reproduction by small units is considered in the light of natural selection. 



