BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
19 
260. Cook, O. F. Prof. William Morton Wheeler on the Kelep. 
<Seience, 4 November, 1904, pp. 611-612. 
261. Cook, O. F. Evolution of weevil-resistance in cotton. <Science, 
18 November, 1904, pp. 666-670. 
262. Cooley, R. A. Injurious fruit insects. <Bull. No. 23, Montana 
Agric. Exp. Station, May, 1900 (February, 1901), pp. 64-114. 
Treats of a number of insects. 
263. Cooley, R. A. Entomological Department. <Eighth Annual 
Rept. Mont. Agric. Exp. Station, 1902, pp. 45-49. 
264. Cooley, R. A. The codling moth. <Bull. No. 42, Mont. Agric. 
Exp. Station, February, 1903, pp. 18. 
265. Cooley, R. A. Two insect pests. <Bull. No. 46, Montana 
Agric. Exp. Station, 1903, pp. 107-118, 2 figs. 
Notes on Rhynchites bicolor Fab., and Pontaniabozemani Cooley. 
266. Cooley, R. A. Entomological Department. <Tenth Ann. Rept. 
Mont. Agric. Exp. Station f. 1903 (1904), pp. 38-52. 
267. Cooley, R. A. First Annual Report of the State Entomologist 
of Montana. <Bull. No. 51, Mont. Agric. Exp. Station, 
January, 1904, pp. 199-274, 8 pis., 18 figs. 
268. Cooley, R. A. Notes on a grasshopper outbreak in Montana. 
<Bull. No. 46, Div. Ent., U. S. Dept. Agric., May, 1904, 
pp. 41-43. 
269. Coquillett, D. W. Two new Cecidomyians destructive to buds 
of roses. <Bull. No. 22, n. s., Div. Ent., U. S. Dept. Agric., 
January, 1900, pp. 44-48, 1 fig. 
270. Coquillett, D. W. A new violet pest. <Bull. No. 22, n. s., 
Div. Ent., U. S. Dept. Agric., January, 1900, pp. 48-51, 1 fig. 
271. Corbett, L. C. Fruit diseases and how to treat them. <Bull. 
No. 66, W. Ya. Agric. Exp. Sta., February, 1900, pp. 199- 
235, 23 figs. 
Contains a spraying calendar and directions for preparation and use of 
insecticides. 
272. Corbett, L. C. Spraying, results of the season of 1900. <Bull. 
No. 70, W. Ya. Agric. Exp. Station, November, 1900, pp. 
354-382, 17 figs. 
273. Cordley, A. B. The genuine horn fly in Oregon. <Oreg. 
Agric. and Rural Northwest, 15 September, 1900, p. 9. 
274. Cordley, A. B. The Haseltine moth catcher. <Oreg. Agric. 
and Rural Northwest, 15 May, 1901, p. 258. 
275. Cordley, A. B. The codling moth and late spraying in Oregon. 
<Bull. No. 69, Oreg. Agric. Exp. Station, February, 1902, 
pp. 121-160, 4 pis. 
