126 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1895. Osborn, H. Entomology. <The Orange Judd Farmer, 20 Decem¬ 
ber, 1890, p. 389,1 fig. 
Notes on leery a palmer i and Bryobia pratemis. 
1890. Osborn, H. Entomology. <Tlie Orange Judd Farmer, 27 Decem¬ 
ber, 1890, p. 404. 
Notes on the cucumber beetle. 
1897. Osborn, H. Apple-worms. <Trans. Iowa State Hortic. Soc. for 
1889 (1890), pp. 224-227. 
1898. Osborn, H. Report on insects of the season in Iowa. <Bull. 
No. 22, Div. Ent. U. S. Dept. Agric., 1890, pp. 18-42. 
Insects affecting grasses mostly leaf-hoppers and plant-lice. 
1899. Osborn, II. Entomology. <Tlie Orange Judd Farmer, 3 Jan¬ 
uary, 1891, p. 4,1 fig. 
Notes on chinch-bug and apple root-lonse. 
1900. Osborn, H. Entomology. <The Orange Judd Farmer, 10 Jan¬ 
uary, 1891, p. 20. 
Treats of the fruit bark-beetle. 
1901. Osborn, H. Entomology. <The Orange Judd Farmer, 17 Jan¬ 
uary, 1891, p. 36. 
Potash as au insecticide. 
1902. Osborn, II. Entomology. <The Orange Judd Farmer, 24 Jan¬ 
uary, 1891, p. 52. 
Potash as an insecticide; potato-stalk weevil. 
1903. Osborn, H. Entomology. <The Orange Judd Farmer, 31 Jan¬ 
uary, 1891, p. 68,1 fig. 
Notes on Trichobaris trinotata, Mierocentrum retinervis, and Hessian fly. 
1904. Osborn, H. Entomology. <The Orange Judd Farmer, 7 Feb¬ 
ruary, 1891, p. 84. 
Note on the apple root-louse. 
1905. Osborn, II. Entomology. <The Orange Judd Farmer, 14 Feb¬ 
ruary, 1891, p. 100,1 fig. 
Treats of spraying apparatus. 
1906. Osborn, H. Entomology. <Tlie Orange Judd Farmer, 21 Feb¬ 
ruary, 1891, p. 116,1 fig. 
Notes on Cere sa bubal us and on cutworms. 
1907. Osborn, H. Entomology. <The Orange Judd Farmer, 28 Feb¬ 
ruary, 1891, p. 132. 
Remarks on the chinch bug. 
1908. Osborn, H. Entomology. <The Orange Judd Farmer, 14 
March, 1891, p. 164. 
Note on apple root-louse. 
1909. Osborn, H. Entomology. <Tlie Orange Judd Farmer, 21 
March, 1891, p. 180. 
Notes on snowy tree cricket, fruit-tree bark-beetle, buffalo tree-hopper, and 
Siphonophora averue. 
