plan has remained unaltered, but large sections of the text 

 have been rewritten and expanded. This particularly holds for 

 the section on the chick embryo, which now incorporates much 

 recent information on oogenesis, ovulation, early morphogenetic 

 movements, and inductive interactions. This basic section can 

 now be used without reference to other textbooks. 



The number of text figures has been augmented from 9 to 19, 

 and the new figures are excellent. The plates are now printed 

 on glossy paper and are thus even better than in the second 

 edition. A list of 25 research references, all pertaining to 

 chick development, has been added and another new feature is 

 the alphabetical index containing the majority of the terms 

 printed in bold face in the text. 



Dissertations 



33. 



W.MAGER. 1972. EXPERIMENTELLE UNTERSUCHUNGEN UBER DEN EINFLUSS 



DES pH-WERTES AUF DIE DIFFERENZIERUNGSLEISTUNGEN DES AMPHIBIEN- 



EKTODERMS 



Ph.D. thesis, Cologne. 75 pp., 7 figs., 8 tabs. 



Treatment of isolated blastula and gastrula ectoderm of Amby- 

 stoma mexicanum and Triturus vulgaris for 4 hrs with Holtfreter 

 solution with or without LiCl (0,06 M/l) at pH values ranging 

 from 3 to 10; subsequent culturing in Holtfreter solution for 

 13-18 days to study differentiation. 



DEVELOPMENT OF MAMMALS AND MAN (general ) (see also 56,60,80, 

 — 112,116,13^) 



Textbooks 



34. 



C.R.AUSTIN and R.V. SHORT, eds. 1972. EMBRYONIC AND FETAL 



DEVELOPMENT 



Cambridge Univ. Press, London. Reproduction in mammals, Book 2. 

 VIII, 158 pp., 44 figs., 6 tabs., subject index. £ 3.40 (cloth), 

 £ 1.30 (paper) 



Contents: 1. The embryo (McLaren); 2. Sex determination and 



differentiation (Short); 3. The fetus and birth (Liggins); 



4. Manipulation of development (Gardner); 5. Pregnancy losses 



and birth defects (Austin) 



This series of five small textbooks was written mainly for the 

 use of undergraduate students, but is eminently suited for spe- 

 cialists in other fields to update their knowledge of mammalian 

 and human reproduction. (See also review nr.126.) 



The volume under review was written by five of the best known 

 specialists in the field. They have made every effort to select 

 the most significant material and to stress the most recent ad- 

 vances, all this with admirable clarity and in a pleasant style. 

 Chs.l and 4 devote special attention to the still young branch 

 of mammalian experimental embryology which was initiated by the 

 advent of better techniques of in vitro culture. 



The numerous excellent drawings and schemes were especially 

 prepared for this book by John R. Fuller. All chapters are con- 

 cluded by useful lists of further reading. The book is well 

 produced . 



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