BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 25 
286. Comstock, J. H. On the methods of experiment in economic 
entomology. <Amer. Nat., December, 1888, pp. 1112-1132, 1 
fig. 
287. Comstock, J. H. On preventing the ravages of wire-worms. 
<Amer. Nat., January, 1889, pp. 61-C3. 
288. Comstock, J. H. On a saw-fly borer in wheat. <Bull. No. 11, 
Cornell Univ. Agric. Exp. Sta., November, 1889, pp. 127-142, 
3 figs., 1 pi. 
Life-history of Cephus pygnue us. 
289. Comstock, J. H. The apple tree tent-caterpillar. <Bull.No. 15, 
Cornell Univ. Agric. Exp. Sta., December, 1889, pp. 199-202, 
1 fig. 
290. Comstock, J.H. Tent caterpillar (Clisiocampa americana). <New 
Eng. Earmer, 3 April, 1890. 
291. Comstock, J. H. Apple tree tent caterpillar. <Prairie Farmer, 
12 April, 1890, p. 228. 
292. Comstock, J. H. A saw-fly borer in wheat. <Prairie Farmer, 
23 August, 1890, p. 540. 
Ti’eats of Cephus pygmeeus. 
293. Comstock, J. H. Cankerworms. <Pac. Rural Press, 27 Febru¬ 
ary, 1892, p. 183. 
294. Comstock, J. H. Scale insects. <Calif. Fruit Grower, 12 March, 
1892, p. 165. 
295. Comstock, J. II., and Slingerland, M. V. Insects injurious to 
fruits. <BulI. No. 23, Cornell Univ. Agric. Exp. Sta., Decem¬ 
ber, 1890, pp. 103-126, figs. 17. 
Treats of Phytoptus pyri, Dor cue parallel us, Bucculatrix pomlfoliella, Cacacia 
rosana, C. cerasivorana, Hydria undulata, Oherea himaculata, autl CEcanthus 
nireus. 
296. Comstock, J. H. and Slingerland, M. Y. Wireworms. <Bull. 
No. 33, Cornell Univ. Agric. Exp. Sta., November, 1891, pp. 
193-272, figs. 21. 
Details of damage and life-history of several click-beetles; remedies. 
297. Connell, J. H. Grasshoppers in central Texas. <Sixtli Ann. 
Eept. Texas Agric. Exp. Sta. 1893, pp. 364-367. 
298. Connell, J. II. Sundry brief articles. <Bull. No. 37, Texas 
Agric. Exp. Sta., December, 1895, pp. 657-739. 
Contains answers to inquiries regarding various injurious insects. 
299. Cook, A. J. Experiments with insecticides. <Bull. No. 39, Mich. 
Agric. Exp. Sta., September, 1888, pp. 10. <Also in Ann. 
Kept., with some figures of insects. 
300. Cook, A. J. Report of the entomological department. <Rept. 
Seer. Mich. State Bd. Agric., 1888, pp. 165-170, 6 figs. 
Notes on Authonomus musculus, Helotropha atra, Euphoria inda, Gryllotalpa 
borealis, and Saperda cretata. 
