xxii List of Illustrations 



FIG. PAGE 



187. Glossary chart giving the names of the various sections of 



a male fowl 426 



188. Light Brahma male . 427 



189. Buff cochin male 428 



190. White Leghorn male . 429 



191. Barred Plymouth Rock male 429 



192. Rhode Island Red male 429 



193. White Wyandotte male 429 



194. Bottom view of a walking plow ..... 445 



195. Sulky plow (reversible) 446 



196. A ten-bottom gang plow with gasoline tractor . . . 447 



197. Disc plow 448 



198. Subsoil plow 449 



199. Disc harrow 449 



200. Cutaway disc harrow 450 



201. Spring- tooth harrow 450 



202. Spike-tooth harrow 451 



203. "Acme" harrow . . . . ... . . 452 



204. One-horse cultivator 452 



205. One-row straddle cultivator .... . . 453 



206. Two-row straddle cultivator 453 



207. Weeder . 454 



208. One-horse corn-planter 455 



209. A tractor pulling six seeders ...... 458 



210. A tractor as source of power for threshing . . . 459 



