1917] EXPERIMENT STATION EECORD. 151 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Zoological record, D. Shaep (Zool. Rec, 51 (1914), PP- VI -\- [913]). This 



continuation of the catalogue previously noted (E. S. R., 33, p. 450) records the 

 literature of 1914 and includes entries for earlier years that were received 

 too late for inclusion in the previous volume. 



Game laws for 1916. — A summary of the provisions relating to seasons, 

 export, sale, limits, and licenses, T. S. Palmer, W. F. Banckoft, and F. L. 

 Earnshaw (U. S. Dept. Agr., Farmers' Bui. 11 4 (1916), pp. 64, figs. //).— This 

 bulletin containing the seventeenth annual summary of the game laws of the 

 United States and Canada has been prepared on the same general plan as 

 those issued each year since 1902 (E. S. R., 34, p. 157). It includes the procla- 

 mation of the President and the amended regulations for the protection of 

 migratory birds, approved August 21, 1916, and the treaty with Great Britain 

 for the protection of migratory birds in the United States and Canada, ratified 

 August 29, 1916. 



Second annual report of bird counts in the United States, with discussion 

 of results, W. W. Cooke (U. S. Dcpt. Agr. Bui. 396 (1916), pp. 20, fig. 1).—A 

 second count of the birds of the United States, here reported, is said to cor- 

 roborate the general results obtained by the preliminary work of 1914, pre- 

 viously noted (E. S. R., 32, p. 648). 



The counts made in the Northeastern States during 1915 confirm those of 

 the previous year and are said to indicate with reasonable assurance that one 

 pair per acre is the average bird population in that part of the northeastern 

 United States actually devoted to agriculture. 



" An average of the returns of counts shows that, on farms where counts 

 were made in that part of the Plains region east of the one-hundredth merid- 

 ian and in the whole of the Southern States, for the part of the farm sur- 

 rounding the fai*m home there is almost exactly the same density of bird 

 population — for the former 125 and for the latter 131 pairs of nesting birds 

 to each 100 acres — but the counts so far received do not furnish a sufficient 

 basis for estimating the birds on the remainder of the farm. The data re- 

 ceived tend to indicate that the western part of the Plains, the Rocky Mountain 

 region, and the Pacific slope contain a smaller number of birds per acre than 

 the Eastern States, but as yet no numerical statement may be attempted. . . . 



"A bird population of 70 pairs of native birds of 31 species on 8 acres, at 

 Olney, 111. ; 135 pairs of 24 species on 5 acres, at Wild Acres, Md. ; 193 pairs 

 of 62 species on 44 acres, at Indianapolis, Ind. ; and 189 pairs of 40 species on 

 23 acres, at Chevy Chase, Md., a half acre of which showed 20 pairs of 14 dif- 

 ferent species ; all indicate how largely birds will respond to food, shelter, and 

 protection." 



A field ornitholog-y of the birds of eastern North America, C. J. IMaynakd 

 (West Newton, Mass.: Author, 1916. pp. 550, pi. 1, figs. 424).— A. popular hand- 

 book for field use. 



Common birds of southeastern United States in relation to agriculture, 

 F. E. L. Beal, W. L. McAtee, and E. R. Kalmbach (U. S. Dept. Agr., Farmers' 

 Bui. 155 (1916), pp. 39, figs. 20).— This deals with the food habits and economic 

 importance of 23 species of birds that commonly occur in the southeastern 

 United States. 



How to attract birds in northwestern United States, W. L. McAtee (U. S. 

 Dept. Agr., Farmers' Bui. 160 (1916), pp. 11, figs. 11).— This is the second of a 

 series of publications (E. S. R., 32, p. 347) in which the means of attracting 

 and providing food supplies for wild birds about homesteads in the North- 

 western States are especially described. 



