BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
67 
855. Parrott, P. J. The effects of insecticides upon the germination 
of seed. <Kansas Farmer, 11 May, 1899. 
856. Parrott, P. J. A bill-bug on corn. <Kansas Farmer, 11 May 
1899, p. 314, 1 fig. 
Notes on Sphenophorus pertinax. 
857. Parrott, P. J. The corn wireworm. <Kansas Farmer, 15 
June, 1899, p. 398. 
Note on Melanotus cribulosus. 
858. Parrott, P. J. To rid the house of flies. <CKansas Farmer, 
29 June, 1899. 
859. Parrott, P. J. The chicken mite. < Field, Farm and Fire¬ 
side, 8 July, 1899. <New England Farmer, 20 May, 1899. 
860. Parrott, P. J. Horn fly remedy. <Kansas Farmer, 13 July, 
1899, p. 471. 
Parrott, P. J. See Faville, E. E.,and Parrott, P. J. 
861. Pease, S. A. Fighting scale insects. <Rural Calif., January, 
1898, pp. 22-23. 
862. Pergande, Theo. The plum plant-louse. <Bull. No. 7, n. s., 
Div. Ent., U. S. Dept. Agric., 1897, pp. 52-59. 
Description, food plants, and life history of Myzus mahaleb. 
863. Pergande, Theo. The peach Lecanium. <Bull. No. 18, n. s., 
Div. Ent., U. S. Dept. Agric., 1898, pp. 26-29, 2 figs. 
Description and habits of Lecanium nigrofasciatum. 
Pergande, Theo. See Hubbard, H. G., and Pergande, Theo. 
864. Perkins, G. H. Report of the entomologist. <10th Ann. Rept. 
Vt. Agric. Exp. Sta., 1896-97 (1897), pp. 75-86, 4 figs. 
Treats of Tetranychus telarius. 
865. Perkins, G. H. Insects of the year. <Bull. No. 60,Vt. Agric. 
Exp. Sta., October, 1897 (February, 1898), 16 pp., 5 figs. 
Notes on tent caterpillars, oyster-shell bark louse, San Jose scale, and apple- 
tree borers. 
866. Pettit, J. B. The San Jose scale. <Farming, 18 July, 1899. 
867. Pettit, R. H. Some insects of the year 1897. <Bull. No. 160, 
Mich. Agric. Exp. Sta., June, 1898, pp. 399-436, 27 figs. 
Treats briefly of many insects. 
868. Pettit, R. H. Some insects of the year 1898. <Bull. No. 175, 
Mich. Agric. Exp. Sta., July, 1899, pp. 341-373, 20 figs. 
Notes on various insects, especially Thrips tabaci, Depressaria persicieeila 
Chrysomela suturalis, and Scolytus rugulosus. 
869. Phillips, J. L., and Price, H. L. The nature and use of cer¬ 
tain insecticides. <Bull. No. 97, Ya. Agric. Exp. Sta., Feb¬ 
ruary, 1899, pp. 11-26. 
Contains also a note on Nectarophora destructor. 
