THE CANADIAN ENTOMOLOGIST. 37 



themselves, their habits, the animal and vegetable substances they injure, 

 the remedies used for destroying them, &c., all being referred to in alpha- 

 betical order. 



This work is another evidence of the indomitable perseverance of this 

 energetic Entomologist, and will be a valuable aid to those who desire to 

 studv this hitherto much neglected order. The author has again placed 

 us under deep obligation for his kind remembrance of us. 



Report on Insects Introduced by means of the International Exhibi- 

 tion, by Dr. J. L. LeConte, Dr. Geo. H. Horn, and Prof. J. Leidy. From 

 the Proceedings of the Academy of Natural Sciences, Philadelphia, pp. 5. 



We are glad to learn from the report of this committee that the insect 

 pests observed among the grains, seeds, &c., exhibited, are chiefly such as 

 are already known wimong us, and that there is not much likelihood of any 

 great injury resulting to any agricultural product from the introduction of 

 new enemies from this source. 



The Rocky Mountain Locust ; being report of proceedings of a con- 

 ference of the Governors of several western States and Territories, 

 together with several other gentlemen, held at Omaha, Oct., 1876, 8vo., 

 pp. 58. 



We are indebted to our esteemed friend, C. V. Riley, for a copy of the 

 above pamphlet, which contains much valuable information on the habits 

 of this destructive pest, as well as a summary of the best means yet known 

 for counteracting its ravages. 



Life Histories of the Birds of Eastern Pennsylvania, by Thomas G. 

 Gentry, Vol. i. 



This is an octavo volume of 394 pages, published by the author, who 

 resides in Germantown, Philadelphia. It is a thoroughly practical work, 

 dealing largely with the habits of the various species of birds as observed 

 by the author, who describes their nests and eggs, gives very full and 

 explicit information in reference to the character of their food, the results 

 of careful and repeated observation in the fields and woods. It is this 

 feature that lends a special charm to this interesting little book, which is 

 written in a very pleasing style and supplies a want long felt. ^Ve heartily 

 commend it to all our readers who are in any way interested in Orni- 

 thology. The 2nd volume, which will complete the work, will be issued 

 shortly, and may be obtained from the Nautralists' Agency, Salem, Mass. 



