prehensive account of Drosophila biology and genetics. Vol.1 (1976) dealt 

 with formal genetics and vol.3 will deal with population biology. Vol.2 will 

 consist of five parts, which we will briefly announce as we receive them.. 

 The editors emphasise that vol.2 complements but does not replace Demerec's 

 Biology of Drosophila (1950). 



Our readers are referred to the selective list of chapters above. It is 

 impossible to review them in detail. Suffice it so say that editors, authors 

 and publisher alike have devoted the utmost care to making these volumes in- 

 to t/ze reference work for many years to come. It would be preposterous to 

 squabble over details vis-a-vis these impressive efforts. 



A word should be said about the illustrations. These are numerous, varied 

 in nature and often original. Particularly impressive are the long series of 

 pictures of normal embryonic development, made with various techniques 

 (ch.21), and the SEM-atlas of adult surface structures (ch.23). 



Textbooks 



23. 



O.M. IVANOVA-KAZAS. 1978. COMPARATIVE EMBRYOLOGY OF THE INVERTEBRATES: LOWER 



CHORDATES (in Russian) 



Izd. Nauka, Moscow. 166 pp., 101 figs. 



Deals separately with the Acrania and the five classes of the Tunicata; 

 also considers experimental embryology and asexual reproduction; separate 

 chapter on evolution of ontogenesis in lower chordates; phylogenetic con- 

 siderations; numerous good line drawings from various sources; 10-page bib- 

 liography (largely non-Russian) . 



Symposium reports 



24, 



F.-S.CHIA and M.E.RICE, eds. 1978. SETTLEMENT AND METAMORPHOSIS OF MARINE 



INVERTEBRATE LARVAE 



Elsevier, New York, etc. XII, 290 pp., 219 figs., 20 tabs., combined subject 



and taxonomic index. $ 27.50, £ 15.30 



This symposium took place in December 1977 in Toronto, Canada. Since lar- 

 val settlement and metamorphosis are closely linked processes, most of the 

 19 papers deal with both. All authors are North-Americans. Twelve of the 

 papers are reviews, the remainder being research reports. The book contains 

 a wealth of information on a total of 1 1 phyla, not otherwise easily found 

 together in a single publication. 



The book is well produced and contains a host of excellent illustrations: 

 good line drawings and beautiful light and electron micrographs. 



25. 



R.LAFONT, organiser. 1979. CINQUIEME SEMINAIRE SUR LA DIFFgRENCIATION 



CELLULAIRE CHEZ LES INSECTES 



Ecole Normale Super., Lab. de Zool., Paris. Publ . du Lab. de Zool., E.N.S. 



No. 14. 256 pp., 30 figs., 20 tabs, (mimeographed) 



Report of a meeting held in Paris in December 1976; reviews on insect neu- 

 rohormones (133 pp.), on vitellogenin synthesis and juvenile hormone, on 

 imaginal discs (one each on differentiation and determination, respectively, 

 the latter from a genetic viewpoint) ; research report on degeneration of 

 larval hypodermis in Calliphora; line drawings and micrographs. 



May be borrowed from the Central Embryological Library, Hubrecht Labora- 

 tory, Uppsalalaan 8, 3584 CT Utrecht (Netherlands) 



212 



