32 Ins. 
xni. INSECTA. 
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536. . The shade- tree insect problem in the Eastern United States. 
Reprinted from the Year-book of the U. S. Dep. of Agriculture for 
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537. . Insects affecting the cotton plant. Reprinted from Bull. 
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538. . The grass and grain joint- worm flies and their allies : a con- 
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541. . A coleopterous enemy of Corydalis cornutus. P. ent. Soc. 
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. [See also Cockerell (207).] 
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544. , . The San Jose scale : its occurrences in the United 
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545. Hubbard, H. G. Additional notes on the insect guests of the 
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546. . Some insects which brave the dangers of the pitcher-plant. 
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547. Hulst, G. D. A classification of the Geometrina of North America, 
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552. Hyatt, J. D. Some peculiarities of the mouth parts and oviposi- 
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[Hemiptera-Homoptera.] 
553. . Cicada septendecim , its mouth parts and terminal armour. 
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