54 
BLBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
855. Isaacs, J. Pests and diseases of deciduous fruits. < Calif. Fruit 
Grower, 16 May, 1903. 
856. Isaacs, J. Pests and diseases of citrus fruits. <CRural Calif., 
June, 1903. 
857. Isaacs, J. Fighting pests with parasites. <Farm, lield and 
Fireside, 19 September, 1903. 
858 Jarvis, T. D. Fly tormentors of New Ontario. <34th Ann. 
Rept. Ent. Soc. Ont. f. 1903 (1904), pp. 82-84, 1 map. 
859. Jarvis, T. D. Notes on injurious insects of the Abitibi region. 
<34th Ann. Rept. Ent. Soc. Ont. f. 1903 (1904), pp. 100-101. 
860. Jenkins, E. II., W. E. Britton, et al. The protection of shade 
trees in towns and cities. <CBull. No. 131, Conn. Agric. Exp. 
Sta., November, 1900, pp. 30, pis. ix. 
Notes on insect pests and remedies. 
861. Johnson, H. P. A study of certain mosquitoes in New Jersey, 
and a statement of the mosquito-malaria theory. <Rept. 
Entom. Dept. N. J. Agric. Exp. Station for 1902 (1903), pp. 
559-593. 
862. Johnson, W. G. The use of hydrocyanic acid gas. <Rural 
New Yorker, 6 January, 1900, p. 1; 20 January, 1900, p. 33. 
863. Johnson, W. G. The destructive green pea louse. <The Can- 
ner and Dried Fruit Packer, February, 1900, pp. 40-43. 
864. Johnson, W. G. Killing insects in a mill. <Rural New Yorker, 
31 March, 1900, p. 223, 1 fig. 
Treats of killing roaches. 
865. Johnson, W. G. The new peach mite. <Entom. News, May, 
1900, p. 471. 
866. Johnson, W. G. The green pea louse in Maryland. <American 
Gardening, 2 June, 1900. 
867. Johnson, W. G. The destructive green pea louse. <Rural New 
Yorker, 4 August, 1900, pp. 525—526, 2 tigs. 
868. Johnson, W. G. Fall treatment of trees infested with the San 
Jose scale. <Cir. No. 26, Maryland State Hortic. Dept., 3 
October, 1900, 4 pp., 4 figs. 
869. Johnson, W. G. Notes upon the destructive green pea louse 
( Nectarophora destTuctoT Johns.) for 1900. <7Hull. No. 26, 
n. s., Div. Ent., U. S. Dept. Agric., October, 1900, pp. 55-58, 
2 pis. 
870. Johnson, W. G. Aphelinus fuscipennis How., an important 
parasite upon the San Jose scale in Eastern United States. 
<Bull. No. 26, n. s., Div. Ent., U. S. Dept Agric., October, 
1900, pp. 73-75. 
