326 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 3 



the various species are invarialily illustrated l).v rather well executed colored 

 plates showing the varit)us stages of the insects and their work, and in some 

 instances illustrating parasites. It is interesting to note that the horse hot 

 fly, Ga'Strophilus eqiii Fabr. is becoming abundant in that section of the world. 

 The concluding pages are occupied by a series of brief accounts, likewise illus- 

 trated with colored plates, of a number of Victorian birds, the author empha- 

 sizing their economic value, particularly as destroyers of insect life. The 

 final pages are devoted to a brief discussion of insecticides. The lime-sulfur 

 wash and miscible oils api^ear to be unknown in Victoria. 



Insect Depredations in North American Forests, and Practical 

 Methods of Prevention and Control, by A. D. Hopkins, U. S. Dep't 

 Agric, Btir. Ent. Bull. 58; Prt. 5, p. 57-101, 1909. 



This is a smnmarized discussion of insect injury to forests, with brief 

 notices of some of the more destructive syecies affecting the important trees 

 or their products. There is also an interesting dissertation on the interrela- 

 tions exii^ting between insects and forest tires. The author estimates the 

 total loss on forest products in the United States at $100,000,000. Some pages 

 are devoted to the principles to be observed in controlling forest pests, with 

 several accounts of instances where they have been successfully applied. 

 The author advocates the utilization of the natural enemies so far as possible. 

 He rightfully emphasizes the importance of more systematic biologic work to 

 give a scientific basis which may be used in devising practical methods of 

 control, insisting that the former is a necessary preliminary. This bulletin 

 gives in small compass, a large amount of very suggestive information. The 

 appended list of publications relating to forest insects, will prove of material 

 service to students of the subject. 



The Pear Thrips and Its Control, by Dudley IMoulton, U. S. 

 Dep't Agric, Bur. Ent. Bull. 80, Prt. 4, p. 51-66, 1909. 



This most excellent, detailed account with a number of original illustra- 

 tions, gives an extended discussion of a new fruit pest, Btt//(r/p,s pyri Dan. 

 This insect is believed to have originated either in Europe or China. The 

 remedial measures advised are plowing and timely spraying with a contact 

 insecticide. The tabulations and text are both admirable and the publication 

 might well be adopted as a model in many respects. 



The Raspberry Byturus, by W. H. Goodwin, Ohio Agric. Exp't 

 Sta. Bull. 202 : 174-86, 1909. 



The commendable, detailed account with a number of original illustra- 

 tions, and especially strong on the biology, is based on careful field investiga- 

 tion as well as a study of the literature. Heavy applications of arsenate of 

 lead are advised. A bibliography is appended. 



