33° 



INDEX 



Blue-grass, flat-stemmed, 14. 

 Bobolink, 293. 

 Bollworm, iii. 

 Bombydne moths, 102, 1 20. 

 Borer, apple-tree, 140. 



locust, 140. 

 Bottle-grass, 32. 

 Bouncing Bet, 10. 

 Bracken, 24. 

 Brake fern, 24. 

 Brown Tot, 247. 

 Buckwheat, wild, 42. 

 Buffalo bur, 39. 

 Bumblebees, 204. 

 Burdock, 7. 

 Bur marigold, 19. 

 Butter-and-eggs, 10, 11. 

 Buttercups, 24. 

 Butterflies, 97, 119. 

 Butterfly, Asterias, 9'7. 



black swallowtail, 97. 



cresphontes, 98. 



mourmng cloak, 98. 



Cabbage butterfly, 97, 186. 



dubroot, 257. 



maggot, 127. 



rot, 261. 



worm, 97, 186. 

 Carabidae, 164. 

 Caraway, 11. 

 Camivora, 320. 

 Carrot, small, 21. 



wild, 20. 

 Catbird, 299. 

 Caterpillar fungi, 272. 

 Ceddomyiidae, 123. 

 Cedar, red, 25. 

 Cerambycidae, 140. 

 Chaldd flies, 152, 182. 

 Charlock, 33, 47. 

 Cheat grass, 45. 

 Cherry, black, 28, 



choke, 28. 



flower, 194. 

 Chess, 45. 



duckweed, mouse-ear, 34. 



smooth, 34. 

 Chicory, ji. 

 Chinch bug, 75. 



fungus, 76. 

 Chondrilla, 19. 

 Chrospidae, 171. 

 Chrysomelidae, 135. 

 Cicada, dog-day, 78. 



periodical, 78. 

 Cicadidae, 77. 

 Cidndelidje, 164. 

 Cinquefoil, common, 23. 



Norwegian, 23. 



silvery, 23. 

 Clotbur, 38. 

 Clover-seed midge, 124. 

 Clubroot, cabbage, 257. 

 Cocddae, 82. 

 Cockle, 49. 

 Cocklebur, 38. 

 Cockroaches, 70. 

 Codling moth, 113. 

 Coleoptera, 131. 

 Cone-flower, 19. 

 Com cockle, 49. 



rootworm,' northern, 137. 

 southern, 138. 



rust, 238. 



smut, 228, 230. 



stalk-borer, 112. 



worm; in. 

 Cotton boll weevil, 144, 148. 



rot, 203. 



wilt, 251. 

 Couch-grass, 14. 

 Cowbane, spotted, 27. 

 Crab-grass, 33. 

 Crane flies, 125. 

 Crazy weed, 26. 

 Cricket, black', 69. 



mole, 70. 



tree, 70. 

 Cross-fertilized flowers, 199. 

 Crow, 293. 

 Crown gall, 261. 



