56 



DE VROEGE ONTWIKKELING VAN HET BINNENOORGEBIED (The early development of the 



inner ear region). 1970. By C. H. WAAR 



M.D. thesis, Leiden. 98 pp., 44 figs. English summary (3 pp.). 



Human embryos of 4.4-16 mm CRL (reconstructions of brain and inner ear); one human 

 anencephalic embryo of 9.5 mm CRL; 15-day rat embryos. 



57 



SOME ASPECTS OF THE HEREDITARY DEFECT EPITHELIOGENESIS IMPERFECTA LINGUAE 



BOVIS (Smooth-tongue), studies on differentiation and keratinization in tongue epithelium. 



1970. By Z. M. WEISMAN-HAMERMAN 



Ph.D. thesis, Utrecht. 135 pp., 42 figs., 15 tabs. 



One chapter (12 pp.) describes the differentiation of the tongue epithelium in normal and 

 mutant embryos, and some experiments on regeneration of tongue epithelium. An appendix 

 (11 pp.) describes preliminary experiments on the culture in vitro of tongue epithelium from 

 rat embryos. 



58 



ON THE PHYLOGENY AND THE ONTOGENY OF THE HUMAN LARYNX, a morphological 

 and functional study. 1970. By J. WIND 



M.D. thesis, Free University, Amsterdam. Wolters-Noordhoff, Groningen. 157 pp., 60 figs. 

 $ 15.60 



One chapter (20 pp.) describes the developmental anatomy of the larynx in embryos of 8, 

 23, and 47 mm CRL (reconstructions), in the fetus, and in the postnatal period; brief discussion 

 of teratology and functional development. 



Symposium reports 



59 



LES APPORTS RECENTS DES CULTURES ET DES GREFFES EN BIOLOGIE ANIMALE. 1971. 



Masson, Paris. 353 pp., 67 figs., 23 pis., 22 tabs. Fr. 60.— 



This volume embodies the proceedings of a conference held at Besancon in 1969. It is a 

 reprint, with change of pagination, from "L'Annee Biologique", vol. 9, nr. 5-10, p. 247-590 

 (1970). 



The book contains a rather heterogeneous collection of 38 papers, which have not much 

 more in common than that the research reported as a rule involved either organ and cell cul- 

 ture or transplantation, or both. Apart from three Belgians all speakers were French. The 

 papers are grouped in four sections as follows: Organogenesis and cellular differentiation (7 

 papers); Organogenesis and cellular physiology (7); Sexual differentiation (15); Regeneration, 

 endocrinology, pathology (8). There is an opening lecture by Et. and Em. Wolff describing the 

 tortuous ways which led them from the culture of embryonic organs to that of cancerous 

 tissues, with emphasis on the nutritive factors involved. The section on sexual differentiation 

 is opened by a lengthy discussion by P. Brien of the general principles of gametogenesis and 

 sexual development in both plants and animals. 



The great majority of the papers report partly or entirely on unpublished research carried 

 out on a wide variety of organ systems of many vertebrate and invertebrate species. Some of 

 the papers are very short, and none have summaries; the longest papers number about a 

 dozen pages. Most papers are followed by brief discussions. The significance of this book 

 perhaps lies not so much in the individual papers, which vary in content and importance, as 

 in the fact that it provides a cross-section of what is going on in several important areas of 

 experimental zoology in France. Many of the leading French schools are represented, often by 

 their younger members who have just started publishing. 



The book is well printed and adequately illustrated, but has no indexes. The binding is weak. 



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