each are from Australia and Canada, and the remainder from Swe- 

 den, France, and New Zealand. The organizers have made an ef- 

 fort to cover a very wide field, with emphasis on those areas 

 where research is particularly lively. An area that was expli- 

 citly excluded is foetal immunology. 



The contributions vary widely in character, and deal with a 

 variety of mammals including man. About two-thirds are from a 

 few to about ten pages long; most of these are concise research 

 reports, while some are hardly more than abstracts. The remain- 

 der range in length from ca.15 to 25 pages and are usually mix- 

 tures of review and research report, but occasionally restrict- 

 ed to recent review material only. The papers are arranged in 

 seven sessions as follows: Central nervous system (11 papers); 

 Circulation and breathing (12); Placental function (10); Metab- 

 olism (11); Endocrinology (10); Parturition (8); Surfactant 

 colloquium ( 4 ) . 



In the interest of rapid publication the discussions were not 

 included, and no indexes or list of contributors were compiled. 

 Although the speed of publication is indeed remarkable, it is 

 doubtful whether this outweighs the lack of indexes. The book 

 is very well produced and well illustrated. 



115. 



J.J.MENN and M.BEROZA, eds. 1972. INSECT JUVENILE HORMONES: 



Chemistry and action 



Academic Press, New York, etc. XVI, 341 pp., 63 figs., 57 tabs., 



subject index. $ 11.00 



This is the report of an ail-American Symposium held in 

 Washington, D.C. in September, 1971. It was attended by scien- 

 tists representing universities, government agencies, and in- 

 dustry, and its primary focus was on the possible use of juve- 

 nile hormones and their analogues as pesticides. However, the 

 scope of the Symposium was much wider than this, and scientists 

 working on any aspect of JH research will find the book useful 

 and interesting. The contributions were reproduced in offset 

 print from typescript copies in the interest of rapid publica- 

 tion; this has led to some overlap and some inconsistency in 

 nomenclature. The discussions are not recorded. 



The 14 contributions deal with biological (6 papers), bio- 

 chemical (3), and chemical (5) aspects. Three papers in the 

 first group deserve special mention: Williams and Kafatos on 

 theoretical aspects (proposing a model in which JH participates 

 in the negative control of master regulatory genes coding for 

 RNA polymerase); Ilan, Ilan and Patel on JH effects at the 

 translational level; Riddiford on JH and insect embryonic de- 

 velopment. In the second group attention is focussed on the me- 

 tabolic breakdown of JH in insects, mammals, and the environ- 

 ment . 



Books of readings 



116. 



V.H.DENENBERG, ed . 1972. READINGS IN THE DEVELOPMENT OF BEHAVIOR 

 Sinauer, Stamford. X,483 pp., 9^ figs., 112 tabs., subject index 

 £ 2.90 (paper) 



Contents: 1. The biobehavioral bases of development; 2. Criti- 

 cal and sensitive periods; 3. Genetics and behavior; 4. Prena- 

 tal effects; 5. Sex hormones; 6. Nutrition; 7. Learning; 8. 

 Perception; 9. Environmental deprivation; 10. Environmental 



231 



