118 THE CANADIAN ENTOMOLOGIST. 



assistance towards classification, we trust that many will be encouraged 

 to collect and study these particularly interesting creatures. 



Transactions of the American Entomological Society, and Pro- 

 ceedings of the Entomological Section of the Academy of Natural 

 Sciences. Philadelphia. Vol. xiii., 1886. 



This volume is replete, as usual, with papers of high scientific value 

 by such well-known authorities as Dr. Horn on Coleoptera, Messrs. Ash- 

 mead, Blake and Howard on Hymenoptera, the Rev. Messrs. Holland 

 and Hulst on Lepidoptera, and Mr. Williston on Diptera. 



The Mulberry Silk-worm ; being a Manual of Instructions in Silk 

 Culture. By Prof. C. V. Riley. Bulletin No. 9. Division of 

 Entomology, U. S. Department of Agriculture. 



Our Shade Trees and Their Insect Defoliators ; being a con- 

 sideration of the four most injurious species which affect the trees 

 of the Capital ; with means of destroying them. By Prof C. V. 

 Riley. Bulletin No. 10. 



The species referred to are the Elm-leaf Beetle ( Galerucha xant/io- 

 melcena Schrank.) ; the Bag Worm ( Thyridopteiyx ephemei'ceformis 

 Haw.) ; the White-marked Tussock-moth (Orygia leucostigma Sm. & Ab- 

 bot) ; and the Fall Web-worm ( Hyphanti-ia cwiea Drury). 



Reports of Experiments with Various Insecticide Substances, 

 chiefly upon insects affecting garden crops, made under the direc- 

 tion of the Entomologist. Bulletin No. 11. 



Miscellaneous Notes on the Work of the Division of Ento- 

 mology for the season of 1885. Prepared by the Entomologist. 

 Bulletin No. 12. 

 These four works abundantly testify to the value of the Government 

 Commission on Entomology at Washington, and to the ability and indus- 

 try of its members. 



Arsenical Poisons for the Codling Moth (Carpocapsa pomonella 

 L) By Dr. S. A. Forbes, State Entomologist of Illinois. Bulle- 

 tin No. I. 

 Another valuable contribution to Economic Entomology, the result of 



careful and painstaking work in the field. 



