LIST OF ILLUSTRATIONS XXV 



FIG. PAGK 



168. The Cotton Boll-worm on the Outside of a Cotton Boll. 



(U. S. Dept. Agr., Bureau of Entomology) . . . 391 



169. Pupal or Chrysalis Stage of the Cotton Boll-worm and the 



Corn Ear- worm. (U. S. Dept. Agr., Bureau of Ento- 

 mology) ... 392 



170. Pupa of Boll-worm in its Underground Burrow. (After 



Quaintance and Brues, U. S. Department of Agricul- 

 ture) 393 



171. The Mature Boll-weevil. (W. E. Hinds) . . . .394 



172. Cotton Square, showing Boll-weevil Larva in Position. 



(After W. D. Hunter, U. S. Dept. Agr., Bureau of Ento- 

 mology) 395 



173. Punctured Cotton Square. (After W. D. Hunter, U. S. 



Dept. Agr., Bureau of Entomology) .... 396 



174. Cotton Stalk Cutter. (Louisiana Crop Pest Commission) . 400 



175. Side View of Cotton Stalk Cutter. (Louisiana Crop Pest 



Commission) . ,. , , , ..-.*'' . 400 



176. Cotton Plant in the "Budding" Stage. (Louisiana Crop 



Pest Commission) ... . ,. -^ . , v . 402 



177. The Hinds Chain Cultivator. (W. E. Hinds) . ... 403 



178. Map showing the Areas infested by the Boll- weevil. (U. S. 



Dept. Agr., Bureau of Entomology) . . . . 404 



179. Cowpea-pod Weevil. (After Chittenden, U. S. Dept. Agr., 



Bureau of Entomology) . . . . . . 408 



180. Cotton Plants attacked by Wilt . . . * . v . 412 



181. Section through Wilted and Healthy Cotton Stalks . . 413 



182. Root-knot or Nematode Injuries on Cotton Roots. (C. F. 



Atkinson) . . . -. - ,. ~ ' . . . . 415 



183. Anthracnose on Cotton Bolls. (C. F. Atkinson) . . 417 



184. Diseased Leaves, Boll, and Stem of Cotton Plant. (W. A. 



Orton, Bureau of Plant Industry, U. S. Department of 

 Agriculture) . . 420 



185. A Field of Hemp. (Bureau of Plant Industry, U. S. De- 



partment of Agriculture) ... . . . . 422 



186. Leaf and Flowers of Hemp. (L. H. Bailey) . . . 423 



187. Shocking Hemp. (L. H. Bailey) 425 



188. A Field of Sweet-potatoes in Alabama . . . .427 



