440 



INDEX 



vation, 92 ; and pore-space, 102 ; 

 water taken through roots, 11; 

 water absorbed by, 94 ; their 

 place in absorption, 166; effect 

 on transpiration, 179; and fall 

 planting. 214. 216 ; and depth 

 of planting, 221 ; proportion of, 

 260, 261 ; relation to straw and 

 grain, 216. 



Rosen, 299. 



Rotation, of crops in dry-farming, 

 298. 



Rotharnsted Station, on fertility and 

 transpiration, 184, 271. 



Run-off, 98. 



Rural Xew Yorker potatoes, 254. 



Russia, stations for study of dry- 

 farming, 370 ; fallowing in, 197 ; 

 crop rotations in, 299 ; emmer in, 

 243 ; durum wheats from, 237 ; 

 home of Crimean wheats, 238 ; 

 home of Red Fife wheat, 237 ; 

 present status of dry-farming in, 

 394. 



Rye, 243 ; pounds water for one 

 pound, 14; water absorbed by 

 seeds of, 209 ; amount to sow, 

 224. 



Sacks, 180. 



Sagebrush, 79; clearing land of, 

 302 ; water need of. 178. 



Salisbury, Joshua, early dry -farmer 

 in Utah, 355. 



Salts, effect on evaporation, 138. 



Sanborn, 84. 



Sand, in soils, 58; origin of, 58; 

 characteristics of arid soil, 58 ; 

 fertility of arid soil, 58 ; soil, and 

 dry-farming, 58 ; soils defined, 

 57 ; soils respond to cultivation, 

 157 ; depth of planting in, 221. 



Sanfoin, 251. 



San Joaquin Basin, 77. 



Sanpete Valley, lime in soils of, 70. 



Saskatchewan, see also Indian Head ; 

 fertility of dry-farms, 285 ; deep 



and fall plowing in, 195 ; fallow- 

 ing in, 197, 202. 



Schumacher, 84. 



''Scientific agriculture,*' 4. 



Scofield, 163. 



Season, short season in dry-farming, 

 260. 



Seed-bed, 212. 



Seeds, germination of, 205 ; ab- 

 sorption of water, 209, 210 ; 

 value of home-grown, 233 ; to be 

 secured from arid regions, 273, 

 274 ; size of seed, 224 ; propor- 

 tion of, 260, 261 ; lucern, 248. 



Seepage, loss of soil-water by, 165. 



Sega lily, 256. 



Setniarid, defined, 24; area inter- 

 ested in dry-farming, 29. 



" Se?niarid-f arming," 4. 



Shading, effect of, 150. 



Shadscale, 80. 



Shaw, 251. 



Shepherdia, depth of roots of, 90, 

 91. 



Shrubs, for dry-farms, 251. 



Sierra N^evadas, description of, 36. 



Silica, clay from combined, 57; 

 sand from uncombined, 5S. 



Silver poplar, on dry-farms, 253. 



Sixty-Day oats, 241. 



Sfuall grains, see Wheat, Oats, 

 Barley, Rye, Grains. 



Smith. 344. 



Smoot-Mondell homestead Bill, 425. 



Snow, drill culture and snow conser- 

 vation, 225. 



Snowfall, over dry-farm territory, 

 42. 



Snyder, 74. 



Soil-air, effect of pore-space on, 

 102: composition of, 208. 



Soil Culture and Farm Journal, 

 362. 



Soil Fertility, see also Plant-food; 

 summarj^ of explanations of, 292 ; 

 of dry-farm. 415 ; critical ele- 

 ments of, 283; nitrogen the 



