BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
33 
413. Coquillett, I). W. Preliminary report oil suppressing the San 
Jose scale in Virginia. <Insect Life, v. 6, May, 1894, pp. 324- 
326. 
414. Coquillett, D. W. The patent on the hydrocyanic acid gas 
process declared invalid. <Insect Life, v. 7, December, 1S94, 
pp. 257-258. 
415. Coquillett, D. W. Is Gyrtoneura ccesia an injurious insect? 
<InsectLife, v. 7, March, 1895, pp. 338-339, 1 fig. 
416. Coquillett, D. W. Canker worms. <Cir. No. 9, s. s., Div. 
But. U. S. Dept. Agric., May, 1895, pp. 4, 4 figs. 
A full account of the two species. 
417. Coquillett, D. W. Two dipterous leaf-miners on garden vege¬ 
tables. <Insect Life, v. 7, July, 1895, pp. 381-384, 2 figs. 
Treats of Drosophila Jiareola and Tnjpeta fratria. 
418. Coquillett, D. W. Two dipterous insects injurious to cultivated 
flowers. <Insect Life, v. 7, July, 1895, pp. 399-402, 1 fig. 
Accounts of Phyiomyza chrysanthemi and Diplosis caulicola. 
419. Coquillett, D. W. A new wheat pest. <Insect Life, v. 7, July, 
189a, pp. 406-408,1 fig. 
Description and habits of Sciara tritici. 
420. Corbett, L. C. Preparation and application of fungicides and 
insecticides. <Bull. No. 35, S. Dak. Agric. Exp. Sta., May, 
1893, pp. 88-92. 
Formulas and directions for use. 
421. Corbett, L. C. Why, when, what, and how to spray. <Bull. 
No. 43, W. Va. Agric. Exp. Sta., March, 1896, pp. 230-244. 
General directions for spraying. 
422. Cordley, A. B. The apple maggot. <Orchard and Garden, 
October, 1889, p. 192. 
Records occurrence of Trypcta pomonella in plums and cherries. 
423. Cordley, A. B. The peach-tree borer. <Orchard and Garden, 
November, 1889, p. 211. 
424. Cordley, A. B. Arsenical spraying. <Proc. Mich. Hortic. Soc., 
1889 (1890), pp. 104-107. 
425. Cordley, A. B. Insecticides. <Bull. No. 41, Oreg. Agric. Exp. 
Sta., February, 1896, pp. 102-108. 
Formulas and directions for use. 
426. Cordley, A. B. The clover mite. <The Rural Northwest, 1 
March, 1896. 
Abundance of eggs of Bryohia pratensis. 
427. Cordley, A. B. The clover-root borer in Oregon. <Webfoot 
Planter, 24 March, 1896. 
Occurrence of Hylastes ohscurus. 
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