the form of essays, partly synthetic lectures, and partly selecr- 

 tlve reviews of modern work. Most chapters were rewritten after 

 the meeting, taking Into account the discussions held during the 

 Program. 



We must restrict our review mainly to the second symposium, 

 entitled Development of the nervous system. This covers 107 pages 

 and provides an excellent overview of the "state of the art" in 

 vertebrate neuro-embryology at the time of writing. In a synthet- 

 ic essay P.Weiss places the subject In biological perspective. 

 Angevlne mainly deals with the role of cell proliferation and 

 Its temporal gradients. Prestige discusses cell differentiation 

 and cell death In relation to peripheral Innervation. Varon re- 

 views tissue and cell culture work, and Sldman programmed cellu- 

 lar activities In the primitive neural epithelium. Coulombre 

 then discusses the establishment of Inter-neurohal and central- 

 peripheral connections with respect to the motor system, while 

 Jacobson does the same for the cutaneous and visual systems. 

 Ultrastructural events during the development of synaptic con- 

 nections In the spinal cord, and their functional Implications, 

 are discussed by Bodlan. Finally, Hamburger deals with patterns 

 of embryonic motility and their relation to both morphology and 

 physiology. M.V.Edd's concluding comments deal mainly with the 

 problem of neuronal specificity. In an attempt to clarify this 

 complicated Issue. 



Developmental aspects of the nervous system are also touched 

 upon In several chapters In the other "symposia", e.g. Dellus on 

 the ontogeny of behaviour, Goy on hormones and sexual behaviour, 

 and Shooter on gene expression in the nervous system. The last 

 "symposium" (Recognition and control at the molecular level) has 

 no direct bearing on the nervous system, but contains some ex- 

 cellent contributions In the general field of molecular gene ex- 

 pression. 



The book Is superbly produced and illustrated. The special 

 price for Individual users deserves acclaim. 



35. 



A.SCHNEIDER. 1971. FUNKTIONSENTWICKLUNG DER SPEICHELDRUSEN, 



histochemische Analyse der Dlf ferenzlerung der eplthellalen 



Schlelmsekretlon in der Ontogenese des Goldhamsters 



G.Fischer, Stuttgart, etc. Progr .Hlstochem.Cytochem. Vol . 3 , no. 2. 



58 pp., 11 figs., subject index. English summary 



Detailed hlstochemlcal study of the parotid, submandibular, 

 retrollngual, and sublingual glands of Mesocricetus auratus, 

 with special reference to mucins; stages: from 11 days in utero 

 till 28 days post partum; 70-day adult for comparison; black- 

 and-white and colour photomicrographs. 



36. 



H.E.SCHROEDER and M. A.LISTGARTEN. 1971. FINE STRUCTURE OF THE 



DEVELOPING EPITHELIAL ATTACHMENT OF HUMAN TEETH 



Karger, Basel, etc. Monographs in Developmental Biology, Vol.2. 



XIV, 134 pp., 40 figs., 2 tabs., author and subject Indexes. 



$ 11.05, £ 4.85, DM 46.00, Sfr. 46.00 



Although this monograph will mainly be of interest to members 

 of the dental profession, we briefly review It because It ap- 

 pears in a series devoted to developmental biology. It contains 

 a scholarly study of an old problem with the most sophisticated 

 new techniques. Apart from studies on human material it reports 

 on an experiment designed to study the de novo formation ol an 



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