122 
BIBLIOGRAPHY OP ECONOMIC ENTOMOLOGY. 
1830. Osborn, H. Notes on destructive insects. <Ann. Rept. Iowa 
State Agric. Soc. for 1888 (1889), pp. 670-080. 
Notes on the chinch bug, 17-year cicada, army worm, wheat-head army worm, 
and Crambus exsiccatus. 
1831. Osborn, H. Another human bot-fly. <Insect Life, v. 1, Janu¬ 
ary, 1889, p. 226. 
Note on a species of Dermatohia. 
1832. Osborn, H. Some suggestions concerning the corn-root worm. 
<Bull. No. 4, Iowa Agric. Exp. Sta., February, 1889, pp. 137-140. 
1833. Osborn, H. Army-worm remedies. <Orauge Judd Farmer, 
2 March, 1S89, p. 143. 
Ditching, rolling, plowing, etc. 
1834. Osborn, II. The apple leaf-beetle. <Orange Judd Farmer, 
2 March, 1889, p. 143, fig. 1. 
Treats of Graptodera foliacea. 
1835. Osborn, H. Hellebore for currant worms: <Orange Judd 
Farmer, 16 March, 1889, p. 175, fig. 1. 
1836. Osborn, H. Garden web-worm. <Orange Judd Farmer, 20 
April, 1889, p. 254. 
1837. Osborn, H. The grain plant louse. <TheNorth West, 1 August, 
1889, pp. 2-3. 
Unusual abundance of Siphonophora granaria in Western States. 
1838. Osborn, H. The wheat louse parasite. <The North West, 15 
August, 1889, p. 12. 
1839. Osborn, H. Answers to cpieries. <The North West, 1 Septem¬ 
ber, 1889. 
Notes on Graptodera foliacea, and Hcematopinus suis. 
1840. Osborn, H. The fall web-worm. <The North West, 1 Septem¬ 
ber, 1889, p. 12. 
1841. Osborn, H. The chinch bug. <The North West, 1 September, 
1889, p. 12. 
1842. Osborn, H. The neat cucumber worm. <Orange Judd Farmer, 
21 September, 1889, 2 figs. 
1843. Osborn, H. The plum curculio. <Orange Judd Farmer, 28 
September, 1889, p. 206. 
1844. Osborn, H. The Cecropia moth. <The North West, Septem¬ 
ber, 1889, p. 3. 
1845. Osborn, H. Answers to queries. <The North West, Septem¬ 
ber, 1889, p. 3. 
Notes on Graptodera foliacea, Hcematopinus suis, Datana ministra, and Ceresa 
bubalti8. 
1846. Osborn, H. The Rocky Mountain locust. <Orange Judd 
Farmer, 19 October, 1889. 
1847. Osborn, II. Answers to queries. <The North West, 1 Novem¬ 
ber, 1889, p. 13. 
Note on Silvanus surinamensis. 
