conclusions have been reached. The papers in this issue therefore have the character of an 

 inventory of research on an extremely broad range of aspects of the central problem, as 

 yet without much coherence. In most papers the emphasis is on ultrastructure or 

 cytochemistry. Some present molecular-biological studies. 



The issue is well printed and the numerous light and electron micrographs are well 

 reproduced. 



INVERTEBRATE DEVELOPMENT (general) (see also 1 1,79) 



Monographs 



13. 



D.T.ANDERSON. 1973. EMBRYOLOGY AND PHYLOGENY IN ANNELIDS AND 



ARTHROPODS 



Pergamon, Oxford, etc. XIV, 495 pp., 164 figs., 4 tabs., taxonomic, author and subject 

 indexes. £ 8.-, $ 24.- 



This scholarly monograph is a purely descriptive study. It contains much original work 

 by the author. Its main purpose is phylogenetic, but it will be very useful to invertebrate 

 embryologists generally. The author has attempted "to establish a uniform terminology 

 for annelid and arthropod embryology which takes cognizance of underlying causal 

 processes." 



The phylogenetic starting points and conclusions are concentrated in the opening and 

 closing chapters. The author feels they support the view of S. M. Manton that the 

 arthropods are a polyphyletic assemblage and should be split into three phyla. 



The remaining eight chapters provide a detailed and fully illustrated account of the 

 comparative embryology of the polychaetes, oligochaetes and leeches, onychophorans, 

 myriapods, apterygotes, pterygotes, crustaceans, and chelicerates, each concluded by a 

 section summarizing the basic pattern of development in the group in question. Much 

 emphasis is placed on cleavage, the blastula (or blastoderm), and particularly on fate maps 

 in the blastula. Postembryonic stages are considered particularly for polychaetes and 

 crustaceans. The imaginal discs of insects are not considered. 



All illustrations have been redrawn and are of excellent quality. Very complete 

 bibliographies are provided throughout. The book is well produced. 



Dissertations 



14. 



P.WIRTZ. 1973. DIFFERENTIATION IN THE HONEYBEE LARVA, a histological, 



electron-microscopical and physiological study of caste induction in Apis mellifera 



mellifera L. 



Ph.D. thesis, Agric. Univ., Wageningen. Mededelingen Landbouwhogeschool Wageningen 



75(5). 155 pp., 55 figs., 10 tabs. 



Comparative study of colony-reared worker larvae and "induced" queen larvae of 

 known ages, with special reference to influence of food, cellular morphology, and 

 endocrine system; emphasis on fat body development, corpus allatum activity, and role of 

 JH (titres and external application to worker larvae); numerous very good light and 

 electron micrographs. 



174 



