158 THE CANADIAN ENTOMOLOGIST. 



BOOK NOTICES. 



" Injurious Insects: How to recognize and control them," by 

 Prof. Walter C. O'Kane. The Macmillan Company, New- 

 York. 414 pages, 606 figures; $2. 



The reviewer's pen has hardly dried after noticing Prof. 

 Sanderson's manual of injurious insects when his successor, as 

 Entomologist to the New Hampshire Experiment Station, adds 

 another to the existing number of general works on injurious 

 insects. The two outstanding features of the book are — first, the 

 large number (over six hundred) of illustrations from the author's 

 own photographs; and, second, the arrangement of his subject 

 matter. 



In regard to the illustrations: While the author is to be con- 

 gratulated in his endeavor to provide entirely original illustrations, 

 the preparation of which must have involved an enormous amount 

 of labour, we must admit that in very many instances he would have 

 been more successful in his representation of the insects had he 

 given us line drawings or reproduced some of the really good avail- 

 able cuts. Those who have attempted it realize the difficulties of 

 insect portraiture. The purpose of such illustrations is to facili- 

 tate the identification of the insects, but it must be confessed that 

 a considerable proportion of the illustrations are not such as will 

 provide a good means of recognition, especially in the case of larvae. 

 On the other hand, the author has in some cases given us excellent 

 figures The illustrations would have been more valuable had the 

 magnification been given when the insects are enlarged. 



As a means of assisting in the identification of the insect pests 

 of garden and field crops, of orchard and small fruits, all of the 

 chief species of which are described, the author has arranged the 

 insects belonging to these two groups according to the place where 

 they are found at work. Insects working in the soil are considered 

 first, then the borers within the stem, trunk or branch. These are 

 followed by those feeding upon the surfaces of the same. Finally, 

 he deals with the insects feeding on the leaves, flower and fruit in 

 the order named. The leaf-feeders are also grouped. It is hoped 

 by the author that this method of grouping will prevent the usual 



