parison with other sipunculans, annelids, and molluscs; good 

 photomicrographs based on thin Epon sections. 



Dissertations 



26. 



J MACARON. 1972. CONTRIBUTION A L' ETUDE DU NEMATODE PHYTOPHAGE 

 TYLENCHULUS SEMIPENETRANS COBB 1913 ( NEMATODA-TYLENCHIDA ) 

 Ph.D. thesis, Montpellier. X,190 pp., 95 figs., 11 photographic 

 pis., 50 tabs. 



Citrus nematode; embryonic and larval development, diapause; 

 reproduction, gametogenesis . 



Collections of papers 



27. 



B.P.TOKIN, ed. 1972. ASEXUAL REPRODUCTION, SOMATIC EMBRYOGENESIS 



AND REGENERATION (in Russian) 



Izdat. Leningradskogo Univ., Leningrad. Transact. Leningrad Soc. 



Naturalists 78, 4, 317 pp., 144 figs., 9 tabs. 



Special issue of a Soviet periodical devoted to work of B.P. 

 Tokin and his associates at the Department of Embryology, Lenin- 

 grad University. Three theoretical articles and six papers deal- 

 ing with investigations on sponges, actinians, turbellarians , 

 and ascidians. English summaries of all papers. 



Books of readings 



28. 



SPIRALIAN EMBRYOLOGY. 1972 



MSS Inf. Corp., New York. 222 pp., 121 figs., 27 pis., 13 tabs. 



$ 15.00 



For general characterization of the series, see review nr.139. 

 Embryology (8 papers), oogenesis (2), regeneration (1), asexual 

 reproduction (1). First authors: Anderson, Arnold, Cather, Cle- 

 ment, Davidson, Dawid, Fitzharris, Gould, Rice, Taylor. Years of 

 publication: 1965-1970. 



VERTEBRATE DEVELOPMENT (general ) 



Textbooks 



29. 



W.W.MATHEWS. 1972. ATLAS OF DESCRIPTIVE EMBRYOLOGY 



Macmillan, New York; Collier-Macmillan, London. X,139 pp., 137 



figs., combined index and glossary. $ 4.95, £ 2.70 (paper) 



This atlas was designed for use in embryology _ courses along 

 with a suitable text and laboratory manual. It is not intendea 

 to replace the first-hand study of embryos. It has no text and 

 consists almost entirely of photographs of whole mounts and sec- 

 tions. The inclusion of a chapter on sea urchin development is a 



useful feature. . . nmmol a Qrir q 



The first two chapters deal with gametogenesis in mammals, and 

 with maturation and fertilization in Ascaris. Ch.3 deals with 

 sea urchin development (whole mounts of oocyte through late glu- 

 teus), and ch.4 with early development of the frog through tail 

 bud). Consecutive chapters then treat frog embryos ( 4 and 6-7 mm) , 

 chick embryos (stages 5, 8, 11, 15, 18, 21), and finally the 10 

 mm pig embryo. . , .. „ 



The photography is superb throughout. Line drawings show the 



197 



