XXVI LIST OF ILLUSTRATIONS 



FIG. PAOH 



189. A Branch of a Vineless Sweet-potato Plant. (After Price, 



Texas Experiment Station) . ...... . 434 



190. Three Shapes of Sweet-potato Leaves. (After Price, Texas 



Experiment Station) . . . ... .434 



191. Sweet-potato Slips ready to be set. (U. S. Department of 



Agriculture) . . ' . 442 



192. Devices employed in Setting Sweet-potato Slips and Vine 



Cuttings. (U. S. Department of Agriculture) . . 444 



193. Transplanting Machine setting Sweet-potatoes. (L. H. 



Bailey) . . . . . 444 



194. Sweet-potatoes attached to a Section of Planted Vine . 445 



195. Special Plows for Digging Sweet-potatoes. (U. S. Depart- 



ment of Agriculture) 449 



196. End View of House for Storing Sweet-potatoes . . . 452 



197. Cross Section through Sweet-potato, showing Injuries by 



Borer. (After Conradi, Texas Experiment Station) . 454 



198. Black-rot on Root and Slip of Sweet-potato. (After B. 



Halsted, New Jersey Experiment Station) ... 455 



199. The Cassava Plant. (U. S. Department of Agriculture) . 458 



200. Method of Preparing Bed for Keeping Cassava Seed-ste*ms 



over Winter. (S. M. Tracy, U. S. Department of Agri- 

 culture) 462 



201. The Lower Part of a Peanut Plant. (U. S. Department of 



Agriculture) . 466 



202. A Peanut "Popper." (W. N. Roper) . . . . 471 



203. A Field of Spanish Peanuts grown from Selected Seed. 



(W. N. Roper, American Nut Journal") . . . .473 



204. Pods and Peas of Three Varieties of Peanuts. (U. S. De- 



partment of Agriculture) . . . . v . . 476 



205. A Bunch of Spanish Peanuts. (W. N. Roper) . . .478 



206. Stacking Peanuts. (U. S. Department of Agriculture) . 481 



207. A Part of a Stem of Sugar-cane. (W. C. Stubbs) . . 487 



208. Cross Section of Part of a Stem of Sugar-cane. (W. R. 



Dodson) . ....... . .488 



209. Cross Section through a Bundle from the Stem of Sugar- 



cane. (W. R. Dodson) . . . . . ' . .488 



210. One Form of Cane Loader. (L. H. Bailey) . . .500 



