NEW BIOLOGICAL BOOKS 



445 



author, who is himself a distinguished 

 investigator in the several fields covered 

 by the book, emphasizes his own particu- 

 lar views, a procedure that is not very 

 satisfactory in a text-book. Another 

 failing exhibited by the author is that of 

 accepting without sufficient scepticism 

 the results of certain other investigators, 

 principally those of medical men who 

 have had little or no training in parasitol- 

 ogy. On the whole, however, the book 

 gives an admirable survey of the subject 

 of human parasitology. 



THE PLANT LICE OR APHIDIDAE OF 

 GREAT BRITAIN. Vol. II. 

 By Fred V. Theobald. Headley Brothers 



30 shillings 5! x 8|; 411 (paper) London 

 This is the second volume of a mono- 

 graphic review of the Aphididae, the first 

 volume of which was noticed earlier in 

 these columns. This section of the work 

 carries the discussion part way through 

 the Tribe Calliperini. The descriptions 

 are very thorough, not only in respect of 

 morphology, but also of habits, host 

 plants, general ecology, etc. The work 

 when completed will be a standard 

 reference work for a long time to come. 



common larvae are included. Under each 

 species the distinctive characteristics and 

 variations of adults and larvae are briefly 

 discussed, and the available information 

 on habits, breeding places and patho- 

 genicity is summarized. The ten text- 

 figures are largely devoted to the 

 delineation of larval details, while five 

 beautifully executed half-tone plates pre- 

 sent the color-patterns of wings, legs, 

 palps, etc., very accurately and effectively. 

 The six plates which reproduce photo- 

 graphs of various anopheline breeding 

 places add little to the book and might 

 well have been omitted. 



MYSTERIES OF THE ZOO. 

 By Helen M. Sidebotham. 



Cass ell and Co., Ltd. 

 5 shillings net 4I x jj; 19Z London 

 This book gives a brief history of the 

 birth and development of the London 

 Zoo. In an entertaining manner are 

 described the individual habits, the likes 

 and dislikes and friendships of many of 

 the famous animals that have made the 

 Zoo one of the most fascinating places in 

 London. The ten illustrations are well 

 chosen. 



A SHORT ILLUSTRATED GUIDE TO 

 THE ANOPHELINES OF TROPICAL 

 AND SOUTH AFRICA. 

 By Alwen M. Evans. 



University Press of Liver-pool 

 7s. 6d. (paper) j\ x iof; 79 Liverpool 

 9 shillings (cloth) 



This compact but comprehensive survey 

 of the anopheline mosquitoes of Africa 

 south of the Sahara should be of great 

 value to sanitary officers working in that 

 continent. Keys for the identification of 

 all adult anophelines and of some of the 



ANIMAL ECOLOGY. With Especial Ref- 

 erence to Insects. 

 By Royal N. Chapman. 



Burgess-Roseberry Co. 

 $6.00 Minneapolis 



8| x iof ; ix + 183 (paper) 

 This is the second edition of an elemen- 

 tary textbook of animal ecology, issued in 

 mimeograph form, and embodying a 

 course in the ecology of insects which the 

 author has given at the University of 

 Minnesota for nine years. The book is 

 characterized by two highly valuable 



