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BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1528. Lugger, O. Notes on tlie Eocky Mountain locust in Ottertail 
County, Minn., in 1888. <Bull. No. 3, Minn. Agric. Exp. Sta., 
July, 1888, pp. 25-34. 
1529. Lugger, O. [Notes on tlie cliincli bug in Minnesota.] <Insect 
Life, y. 1, October, 1888, p. 113. 
1530. Lugger, O. Fungi which kill insects. <JBull. No. 4, Minn. 
Agric. Exp. Sta., October, 1888, pp. 26-41. 
1531. Lugger, O. Division of entomology. < Ann. Kept. Minn. Agric. 
Exp. Sta., 1888, pp. 300-368, figs. 31. 
Contains matter from bulletins on army worm, cliincli ling, and grass¬ 
hoppers. 
1532. Lugger, O. The Eocky Mountain locust in Ottertail County, 
Minn., in 1889. <Bull. No. 8, July, 1889, pp. 17-32, 9 figs., 
2 pis. 
1533. Lugger, O. Insects affecting willows and poplars. <Bull. No. 
9, Minn. Agric. Exp. Sta., November, 1889, pp. 48-64, figs. 20. 
Life-liistory of a number of insects. 
1534. Lugger, O. Fond of grammar. <Ent. News, 1890, p. 38. 1 fig. 
Damage of Trogosita mauritanica to a book. 
1535. Lugger, O. Oak caterpillars. <Bull. No. 10, Minn. Agric. 
Exp. Sta., March, 1890, pp. 75-84, figs. 4, pis. 2. 
Descriptions of tbe larvie and figures of motbs. 
1536. Lugger, O. Insects injurious to small fruit. <Ann. Eept. 
Minn. State Hortic. Soc., 1890, pp. 164-172, 7 figs. 
Notes on Agrilus ruficollis, OEcanthus niveus, JEgeria lipuliformis, Psenocerus 
supernotatus, Ceresa hubalus. 
1537. Lugger, O. Sheep scab, and how to cure it. <Bull. No. 16, 
Minn. Agric. Exp. Sta., April, 1891, pp. 75-84, figs. 7. 
Chiefly compiled from Curtice. 
1538. Lugger, O. Migratory locusts in Minnesota in 1891. <Bull. 
No. 17, Minn. Agric. Exp. Sta., August, 1891, pp. 87-108, figs. 
15; also, in Bull. No. 27, Div. Ent. U. S. Dept. Agric., 1892, 
pp. 18-24. 
Life history, use of hopper-dozers, etc. 
1539. Lugger, O. A new pest to fruit trees. <Ann. Eept. Minn. 
State Hortic. Soc., 1891, pp. 267-271, 7 figs. 
Notes on Heterodera radicola. 
1540. Lugger, O. Preliminary report upon an insect injurious to 
wheat. <Bull. No. 23, Minn. Agric. Exp. Sta., September, 
1892, pp. 167-170. 
Notice of the “frit-fly.” 
1541. Lugger, O. Tent caterpillars. <Ann. Eept. Minn. State 
Hortic. Soc., 1892, pp. 369-372, 4 figs. 
1542. Lugger, O. Entomology. <Bull. No. 28, Minn. Agric. Exp. 
Sta., March, 1893, pp. 75-143. 
Popular article on classification and insecticides. 
