Oliver on regeneration of the dermal papilla of rat whiskers (16 pp.); Margaret H. Hardy on 

 the differentiation of mouse hair follicles and hairs in vitro (26 pp.); Mary Bell on the 

 ultrastructure of developing fetal monkey hair follicles (22 pp.); and W. L. Epstein and H. I. 

 Maibach on cell proliferation and movement in human hair bulbs (16 pp.). All these contain 

 reports of original results, while the first and third paper also contain a review section. 



Other contributions of interest are those by A. F. Silver et al. on anagen initiated by 

 plucking compared with spontaneous anagen; W. E. Straile on sites of dermal-epithelial inter- 

 actions in sensory (tylotrich) hair follicles (with emphasis on nerves and blood vessels); P. F. 

 Parakkal on the fine structure of the mouse anagen hair follicle; and J. H. Mottaz and A. S. 

 Zelickson on the ultrastructure of hair pigment. These papers are reports of original research. 



The book is very well produced and illustrated. 



Collections of papers 



64 



CULTURES D'ORGANES D'INVERTEBRES. 1969. Edited by H. LUTZ 



Gordon & Breach, Paris. Cours et Documents de Biologie, vol. I. 281 pp., 20 figs., 15 pis., 13 



tabs. SBN 677 50100 5. £ 9.17.6. and $ 23.70 



INVERTEBRATE ORGAN CULTURES. 1970. Edited by H. LUTZ 



Gordon & Breach, New York. Documents on Biology, vol. 2. 266 pp., 20 figs., 15 pis., 13 tabs. 



SBN 677 30100 6 cloth SBN 677 30105 7 paper. Cloth $ 22.00 and £ 9.25. Paper $ 7.50 and 63 s. 



These two volumes are almost identical in content and production, and will therefore be 

 reviewed as one book. The book contains a somewhat heterogeneous collection of papers pre- 

 sented at a Colloquium held in Clermont-Ferrand in April 1968. All of the eleven papers are 

 by French authors. Some papers are lengthy reviews, while others are brief reports on original 

 research, and others again are a mixture of the two. Not all papers are even concerned with 

 the topic that has given the book its name. Whether the book is suitable for students, as the 

 preface to the series states, is questionable. 



We will restrict ourselves, with one exception, to mentioning those papers that deal with 

 problems of morphogenesis and differentiation as elucidated by organ culture. 



The book is opened by a long review of methods and media for invertebrate organ culture 

 by N. le Douarin (64 pp. plus 11 pp. of bibliography). There follow reviews by L. Gomot on 

 differentiation and morphogenesis in molluscs, and by C. Ziller-Sengel on morphogenesis of 

 planarian regeneration blastemas. A longer review by Gomot deals with sex differentiation in 

 molluscs. P. Lubet and W. Streiff report on the effect of ganglia on penis morphogenesis and 

 gonad activity in Crepidula. Th. Lender has contributed a review on the organotypic culture 

 of insect tissues, with sections on embryonic development and postembryonic differentiation. 

 P. Nardon and G. Plantevin report on the metamorphosis of the mid-gut of Galleria in vitro. 

 The most recent literature cited in all papers dates from 1967. 



The books are well produced and adequately illustrated. Unfortunately they have no indexes, 

 which reduces their value as works of reference. 



65 



ORGAN CULTURE. 1970. Edited by J. A. THOMAS 



Academic Press, New York. 525 pp., 166 figs., 19 pis., 13 tabs., subject index. ISBN 



12 688150 2. $ 29.50 



Contents: I. The general principles of organ culture in vitro (Et. Wolff); II. Differentiation 

 of organs in natural media (Le Douarin); III. Culture of embryo organs in synthetic media 

 (Kieny); IV. Sexual differentiation and intersexuality in vitro (Haffen); V.. The action of hor- 

 mones and inhibitors on organs cultured in vitro (Dieterlen-Lievre); VI. Culture and para- 

 biosis of blastoderms (Salzgeber); VII. Organ culture in the invertebrates (Ziller-Sengel); 

 VIII. In vitro reassociation of dissociated cells (Sigot); IX. Study of organogenesis by dissoci- 

 ation and reassociation of embryonic rudiments in vitro (Sengel); X. Organ chimeras and 

 organ culture of malignant tumors (Em. Wolff) 



This book is the English translation of a book first published in French in 1964 under the 

 title "Les cultures organotypiques". Its ten chapters are excellent synthetic reviews by Prof. 

 Et. Wolff and several members and former members of his group at Nogent. The book is suf- 



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