1918] ECONOMIC ZOOLOGY ENTOMOLOGY. 357 



hunting game birds, economic value of game birds, artificial and natural propa- 

 gation, protection of game birds, and laws for the protection of game birds. 



Intra- vitam color reactions, N. A. Cobb (Science, n. ser., .J6 (1911), No. 

 1181, pp. 167-169, figs. 2). — The author has met with considerable success in 

 feeding coal-tar and other colored compounds to nematodes. They have not 

 interfered materially with normal metabolism and the best results have been 

 from the cumulative action, using small quantities of color dissolved in the 

 medium in which the nematode lived and allowing the dye to act for days 

 or weeks. " Not infrequently the dyes prove to be highly specific in their action. 

 Only certain cells, or only definite parts of certain cells, exhibit visible reactions 

 in the form of colorations. ... A dye may give rise to several different 

 colors, none of them like that of the dye itself, and all of them very likely 

 due to new compounds." Present efforts are being directed toward the discovery 

 of dyes of greater or less permanency. 



Sodium cyanid as a fumig-ant, G. M. Bentley {Tenn. Bd. Ent. Bui. 18 (1916), 

 pp. 12, figs. 5). — Directions are given for the fumigation of nursery stock, in- 

 cluding the construction of fumigating structures. 



General treatise on entomolog-y, T. Miyake (Konchugaku Uanron Jokican. 

 Tokyo: ShOkdho, NihonbasJii, 1917 ; rev. in Science, n. ser., 46 (1917), No. 1179, pp. 

 113, 114)- — This work, dealing with the morphology, physiology, and embryology 

 of insects, comprises the first part of a handbook on entomology. The review is 

 by L. O. Howard. 



Benefits to be derived from observing, collecting, and studying insects, 

 G. M. Bentley (Tcnn. Bd. Ent. Bid. 20 (1917), pp. 32, figs. 22).— A popular ac- 

 count. 



The relation of soil insects to climatic conditions, A. E. Oamekon (Agr. 

 Gaz. Canada, 4 (1917), No. 8, pp. 663-669). — A general discussion of this subject. 



How insects affect the cotton plant and means of combating them, W. D. 

 PiEKCE (U. S. Dept. Agr., Farmers' Bui. 890 (1917), pp. 27, figs. 36).— This is a 

 popular summary of information on cotton insects and means for their control. 



Control of insect pests of sugar cane by fungi and bacteria, J. Geoenewege 

 (Arch. Suikerindus. Nederland. Indie, 24 (1916), No. 51, pp. 2023-2033; Meded. 

 Proefstat. Java- Suikerindus., 6 (1916), No. 18, pp. 531-541; abs. in Rev. Appl. 

 Ent., Ser. A, 5 (1917), No. 7, pp. 277, 278).— The economic importance attributed 

 to the control of insect pests by fungus and bacterial diseases is questioned by 

 the author. 



Notes on insect pests of green manures and shade trees, E. A. Amdkews 

 (Indian Tea Assoc, Sci. Dept. Quart. Jour., No. S (1915), pp. 57-62; No. 1 

 (1916), pp. 18-21). — A summary of information on the insects which are found 

 to attack green manure crops and shade trees on tea estates in northeast India. 



Report of associate entomologist, G. M. Bentley (Tennessee Sta. Rpt. 1914, 

 pp. 282-284)- — This consists of a brief statement of the work under way during 



1914, of which mention may be made of that with the strawberry root lice 

 (Aphis forbesi and Macrosiphuin fragaria;) which are rapidly becoming dis- 

 tributed over the State, one or the other infesting strawberry plants in 25 of 

 the 96 counties. In several sections of the State the young are produced 

 throughout the winter months, while in other sections the winter is passed in 

 the egg stage. In control experiments the plowing under of infested plants and 

 the selection of a field where strawberry plants have not recently been grown 

 proved the most successful. 



Report of the associate entomologist, G. M. Bentley (Tennessee Sta. Rpt. 



1915, pp. 126-128). — A brief report is given of the work of the year with the 

 more important insect pests, particularly aphldi^s. 



