J. storedProd. Res., 1972, Vol. 8, pp. 159-160. Pergamon Press. Printed in Great Britain.
BOOK
REVIEWS
Control of Insect Behaviour by Natural Products. Edited by DAVID L. WOOD, ROBERT M. SILVERSTEIN and MINORU NAKAKIMA. 1970. Academic Press, New York and London. x + 345 pp. $11.00. THIS is a collection of papers presented at a seminar on the ‘Control of Insect Behaviour by Natural Products’ on January 16-18, 1968 in Honolulu. The scope of the papers is wide, very clearly illustrating the many disciplines which are involved in the study of this area of insect control, they contain much useful experimental detail on bioassay methods, chemical synthesis and structural determinations. Several, by Japanese workers, present information which is not readily available, particularly that by Tetsuo Saito and Katsura Munakuta on ‘Insect Attractants of Vegetable Origin’. The experimental details make the book a useful reference work for those already working in this area and also a valuable introduction to those new to the field. This applies also to the several more general review papers, notably those by Burkholder on stored product Coleoptera, Shorey on the pheromones of Lepidoptera, and Moser on the pheromones of Social Insects. Although it is inevitable that in the 3 years since these papers were presented much new information has become available, the reader will find this book an extremely useful compact summary of the ‘state of the art’ at the end of the nineteen-sixties. D. F. HORLER
Probit Analysis. D. J. FINNEY. Third Edition, 1971. Cambridge Cambridge, England. xv + 333 pp. g5.80 ($18.50 in U.S.A.)
University
Press,
MANY readers of this journal are doubtless familiar with this book, the second edition of which appeared in 1952. Professor Finney has now prepared a new edition. He says in its preface that he was doubtful whether to do so, but I am sure that the revision was well worth-while, and will be widely appreciated, In probit analysis the calculations, even the simpler ones, are rather onerous on a desk calculating machine. However, the calculations are now being done increasingly with electronic computers. This development has greatly influenced many parts of the new edition, though much of the ground covered is, of course, the same as in the previous one, As in the previous ones, the standard of exposition in the new edition is high. Some comparisons on specific points may be made with the previous edition. Professor Finney is now much more cautious in recommending the use of heterogeneity factors. The mean probit difference no longer appears. Continuous (i.e. graded) responses, and the Parker-Rhodes equation, are dealt with much more 159