of the material relates to mammals and man (frequently abnormal differentia- 

 tion) , but a few papers bring in material of other vertebrate orders. 



The 32 papers are arranged in four sections as follows: Morphological as- 

 pects of differentiation (7 papers) , Control mechanisms of skin metabolism 

 (8) , Control mechanisms of epidermal differentiation (9) , and Biochemical 

 characterization of epidermal cell constituents (8) . 



The volume is well produced and illustrated, among other things, with many 

 good light and electron micrographs. 



Colteations of papers 



74. 



N.E.ALANIYA et at. 1977. ULTRASTRUCTURAL INVESTIGATIONS ON CELLS OF THE EYE 



RUDIMENT DURING ITS DIFFERENTIATION (in Russian) 



Metsniereba, Tbilisi. 88 pp., 43 figs., 1 tab. 35 Kop. (paper) 



Five research papers (4 on chick, 1 on mouse) ; retina and lens; actino- 

 mycin-D effects and acetylcholine [inter alia) ; numerous light and electron 

 micrographs. 



75. 



G.S.KVINIKHIDZE et at. 1976. CORRELATION BETWEEN ULTRASTRUCTURE AND PROTEIN 

 SYNTHESIS IN THE DEVELOPMENT OF THE EYE RUDIMENT IN BIRDS (in Russian) 

 Metsniereba, Tbilisi. 132 pp., 46 figs., 5 tabs. 70 Kop. (paper) 



Report of a joint investigation; material and methods and 7 brief chapters 

 (DNA content, DNA synthesis, RNA and protein content, enzyme activity in 

 lens, retina and other tissues; ultrastructure in one chapter) ; conclusion 

 by first author (10 pp.); light and electron micrographs; 83 references (38 

 Russian) . 



CELLULAR DEVELOPMENTAL BIOLOGY (incl. cell culture, cytochemistry) (see also 



50,53,58,62,65,90,95) 



Monographs 



76. 



F.D'AMATO. 1977. NUCLEAR CYTOLOGY IN RELATION TO DEVELOPMENT 



Cambridge Univ. Press, Cambridge, etc. Developmental and Cell Biology Series, 

 vol.6. VIII, 283 pp., 82 figs., 40 tabs., combined subject and taxonomic in- 

 dex; bibliography serves as author index. £ 15.00 



Contents: 1. Life cycles, 2. The cell cycle, 3. Meiosis: its course, modi- 

 fication and suppression, 4. Mosaics and chimeras, 5. The chromosome com- 

 plement of differentiated cells, 6. Differential DNA replication, 7. Gene 

 expression during differentiation and development, 8. The regulation of 

 gene activity, 9. Regeneration and totipotency of cells and nuclei 



The title of this book is a little misleading in that the area covered is 

 much broader than nuclear structure: in fact it deals with the nuclear and 

 sub-nuclear phenomena associated with developmental processes of widely vary- 

 ing kinds. The book's great value lies in the fact that examples are taken 

 from both the plant and animal kingdom, so that it repeatedly provides new 

 insights for the specialist working with material from either kingdom. 



The aim of the book is not clearly stated and it has no distinct "connect- 

 ing thread". Moreover, the treatment is a little idiosyncratic in places and 

 some important subjects are treated cursorily or not at all. A case in point 

 is the relation between proliferation and differentiation, and more particu- 

 larly the theory of "quantal mitoses". 



214 



