66 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY". 
839. Osborn, H. The Hessian fly in the United States. <Bull No. 
16, n. s., Div. Ent., U. S. Dept. Agric., 1898, pp. 5S, 8 figs., 
3 pis. 
A full consideration of the species. 
840. Osborn, H. The duty of economic entomologju <Bull. No. 
17, n. s., Div. Ent., U. S. Dept. Agric., November, 1S98, pp. 
6 - 12 . 
841. Osborn, H. Some problems connected with the attacks of Jas- 
sidse on grasses. <Proc. 19th Ann. Meet. Soc. Prom. Agric. 
Sci., 1898, pp. 101-102. 
842. Osborn, H., and Ball, E. D. Studies on the life-histories of 
grass feeding Jassidte. <Bull. No. 34, Iowa Agric. Exp. 
Sta., 1897, pp. 612-640, 7 pis. 
Life habits of many species, with remedies for leaf hoppers in general. 
843. P-, C. A. Fencing out cutworms. <Country Gentleman, 
8 June, 1899. 
844. P-, G. C. A new pest in Nebraska, the alfalfa or “Fall 
army ” worm. <Country Gentleman, 19 October, 1899, p. 833. 
845. Page, F. H. Test and treatment for San Jose scale. < Rural 
New Yorker, 26 March, 1898, p. 218. 
846. Panton, J. H. Two insect pests of 1896. <27th Ann. Rept. 
Entom. Soc. Ontario, f. 1896 (1897), pp. 44-54, 8 figs., 1 map. 
Treats of Leucania unipuncta and Orgyia leucostigma. 
847. Panton, J. H. Instructions in spraying. <Bull. Ont. Agric. 
Coll, and Exptl. Farm, 1897, pp. 15, 14 figs. 
Directions for the preparation and use of insecticides. 
848. Panton, J. IP. San Jose scale. <Bull. No. 106, Ont. Agric. 
Coll, and Exptl. Farm, June, 1897, pp. 7, 3 figs. 
849. Panton, J. H. A new enemy to fruit growing. <Rural Cana¬ 
dian, August, 1897, pp. 178-179, 3, figs. 
Notes on San Jose scale. 
850. Parrott, P. J. The elm-twig girdler. <The Industrialist. 
April, 1898, pp. 267-270, 4 figs. 
Treats of Oncideres cingulatus. 
851. Parrott, P. J. Some scales of the orchard. <Trans. Kans. 
State Hortic. Soc. f. 1898 (1899), pp. 106-109, 2 figs. 
Notes on various species. 
852. Parrott, P. J. Canker-worm traps. <Kansas Farmer, 20 April, 
1899, p. 274. 
853. Parrott, P. J. The strawberry leaf-roller. <Colman’s Rural 
World, 4 May, 1899. 
854. Parrott, P. J. Codling moth. <Kansas Farmer, 4 May, 1899, 
p. 306. 
