sociation and reassociation of embryonic rudiments in vitro (Sengel); organ 

 chimeras, and organotypic cultures of malignant tumours (Em. Wolff). The 

 papers range in size from 28 to 54 pages. Each is followed by an extensive 

 bibliography. 



The book is liberally illustrated, mostly with photomicrographs. It has no 

 indexes. 



31. EMBRYOLOGY OF THE OVARY AND TESTIS 



Homo sapiens and Macaca mulatta 

 1965 

 by G. van Wagenen and M. E. Simpson Yale University Press 



256 pp., 16 tbs., 90 pis. New Haven — London 



Price: 56 s. 



This book is essentially a photographic atlas. About three quarters of the 

 book are taken up by 90 photographic plates, the rest by a concise text and 16 

 tables. The developmental period covered is from the earliest appearance of the 

 gonadal anlagen up to the end of foetal life, in accurately timed, closely spaced 

 stages, whereas some more widely spaced stages of later gonadal maturation 

 are also included. The assemblage of this extensive material, unique in its 

 present form, is intended to serve as the necessary descriptive background for 

 various experimental approaches. 



The text has been organized into six parts. Parts I and II discuss embryonic 

 and foetal development of the ovary in man and macaque respectively. Part 

 III is devoted to a comparison of the development of human and macaque 

 ovaries. The same pattern is followed for the testis in parts IV - VI. The 

 discussion of ovarian development occupies a total of 46 pages, that of testic- 

 ular development a total of 23 pages. 



The 16 tables are in four groups, concerned with the human and macaque 

 ovary, and the human and macaque testis respectively. Each group contains 

 a tabular survey of the embryonic material used, a kind of "normal table" of 

 the developmental histology of the gonad concerned, and a summary statement 

 of the salient points of its development. There are two tables summarizing 

 comparative points of development between human and macaque gonads. 



Each of the 90 plates occupies a full page (26 x 33 cm), and most consist 

 of 3-6 large-size black and white photographs of histological sections. The 

 legends are always on the page facing the plate. The photographs, although 

 not reproduced on glossy paper, are of very good quality, always showing 

 sufficient histological detail, though perhaps not always sufficient cytological 

 detail. 



Lay-out and printing of the atlas are excellent, and especially striking for a 

 book of this price. The atlas is concluded by a brief bibliography. 



32. CELLS AND TISSUES IN CULTURE 



Methods, Biology and Physiology 

 Vols. 1 and 2, 1965 

 Editor: E. N. Willmer Academic Press 



Vol. 1: 802 pp., 127 figs., 19 tbs. London — New York 



Vol. 2: 825 pp., 197 figs., 21 tbs. Price: 168 s. each 



This is a collaborative treatise in three volumes, the idea for which arose in 

 350 



