BIBLIOGRAPHY OP ECONOMIC ENTOMOLOGY. 27 
320. Cook, A. J. Injurious insects. <Rural New Yorker, 23 August, 
1890, p. 543; 6 September, 1890. 
321. Cook, A. J. The plum curculio. <Bull. No. GO, Mich. Agric. 
Exp. Sta., September, 1890, pp. 8, 1 fig. 
Various methods of destroying the insect. 
322. Cook, A. J. The apple maggot. <Western Farmer, 18 October, 
1890. 
323. Cook, A. J. Latest methods with curculio. <Proc. Mich. Hortic. 
Soc., 1S89 (1890), pp. 37-39. 
324. Cook, A. J. Report of the Zoologist. <Third Anu. Rept. Mich. 
Agric. Exp. Sta., 1890, pp. 102-129, figs. 17. 
Notes on cut-worms, span-worms, currant insects, etc. 
325. Cook, A. J. Insecticides. <Anu. Rept. State Hortic. Soc. Mo., 
1890 (1891), pp. 8G-89. 
32G. Cook, A. J. Currant borers. <Proc. Mich. Hortic. Soc., 1890 
(1891), pp. 106-110, 3 figs. 
Notes ou JEgeria tip ulifox-mis, Psenocerus supernotatus, and Hxjpei'platxjs rnacu- 
latus. 
327. Cook, A. J. Work of the entomologists in the experiment sta¬ 
tions. <Insect Life, v. 3, January, 1891, pp. 212-216. 
328. Cook, A. J. Beneficial insects — wasps. <Rural New Yorker, 12 
July, 1891, p. 459. 
Wasps destroy currant slugs, house-flies, etc. 
329. Cook, A. J. Kerosene emulsion. <Bull. No. 7G, Mich. Agric. 
Exp. Sta., October, 1891, pp. 16, figs. 8. 
Preparation, comparison, and application to several insects; oak caterpillar 
and white-pine saw-fly, hollyhock hug. 
330. Cook, A. J. Some historical notes. <Insect Life, v. 4, October, 
1891, pp. 62-63. <22d Ann. Rept. Eutom. Soc. Out., 1891, pp. 
78-79. 
Notes ou kerosene emulsion and Paris green. 
331. Cook, A. J. The poplar Gonioetena. <Insect Life, v. 4, Octo¬ 
ber, 1891, p. 67; 22d Ann. Rept. Ent. Soc. Out., 1891, p. 82. 
Note on G. pallida. 
332. Cook, A. J. [Forest injury of the oak Edema.] <Insect Life, v. 
4, November, 1891, p. 139. 
Unusual abundance of Edema albifrons. 
333. Cook, A. J. May beetle. <Mass. Ploughman, 26 December, 
1891. 
334. Cook, A. J. Report of the Zoologist. <Fourtli Ann. Rept. Mich. 
Agric. Exp. Sta., 1891, pp. 123-144, figs. 16. 
335. Cook, A. J. Rhizobius ventralis. <Fourth Biennial Rept. State 
Bd. Hortic. Calif, for 1893-94 (1894), pp. 426-432. 
Reports of value of Rhizobius in destroying the black scale. 
