I 



-The selection of areas to be treated is on the whole admirable. In most 



areas the treatment is surprisingly up to date, though in some one misses 

 the most recent developments. Cases in point are the modern work on mam- 

 malian and insect embryogenesis , the work on developmental compartments in 

 insects, and the older and recent findings on the origin of primordial germ 

 cells in urodeles. 



The author evidently had his aims firmly in mind all the time and he 

 writes in an easy style which never becomes boring. Here and there the lan- 

 guage tends to be imprecise, although there are very few major inaccuracies. 



The illustrations are mostly simple but very effective line drawings. A 

 few of the captions lack in clarity. The literature lists are excellent, 

 but some system of reference to them in the text is sorely missed. Why not 

 use small superscript numerals? The book is reasonably well printed but has 

 many printing errors and a weak binding. 



4. 



M.SUSSiyiAN. 1978. MOLEKULARBIOLOGIE UND ENTWICKLUNG, translated from the 



English by U.Ponta 



Parey, Berlin, etc. Pareys Studientexte No. 16. 264 pp., 143 figs., 9 tabs., 



subject index. DM 29.00 (paper) 



This translation is based on the first edition (1973) of Sussraan's well- 

 received text (see review in Gen. Embryol. Inf. Serv. 16, 1, 1975). The Ger- 

 man title does not adequately reflect the book's nature, because it covers 

 cellular aspects as well as the molecular ones. 



The translation reads very well but is by no means always entirely correct, 

 It is doubtful whether the translator knew the field. Rather frequently, 

 moreover, words or phrases from the original have mysteriously disappeared, 

 altering the sense. The illustrations are faithfully reproduced, though 

 without the original use of colour. The original brief reading lists are re- 

 produced with printing errors and all. 



5. 



B.P.TOKIN. 1977. GENERAL EMBRYOLOGY. 3rd edit, (in Russian) 



Vysshaya Shkola, Moscow. 509 pp., 177 figs., 9 tabs., author and subject in- 

 dexes. R 1.55 



Only slight changes from the 2nd edition (1970); new sections on cell 

 death and cell cycle, on molecular embryology, and on dedif f erentiation and 

 cell lineage in regeneration; better quality paper and figures. 



6. 



L.WOLPERT. 1977. THE DEVELOPMENT OF PATTERN AND FORM IN ANIMALS. 2nd edit. 

 Carolina Biology Supply Comp. , Burlington. Carolina Biology Readers no. 51. 

 16 pp. , 21 figs . 



The text of this reader (formerly Oxford Biology Reader no. 51) has been 

 rewritten and some material deleted to accommodate recent findings, such 

 as localisation in insect eggs, insect limb regeneration, and compartments 

 in Drosophila. A number of figures have been deleted and good new ones 

 added . 



190 



