440 
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. 
Rothamsted Station, on fertility and 
transpiration, 184, 271. 
Run-off, 98. 
Rural New 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 
INDEX 
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. 
Sego lily, 256. 
Semiarid, defined, 24; area inter- 
ested in dry-farming, 29. 
“ Semiarid-farming,” 4. 
Shading, effect of, 150. 
Shadscale, 80. 
Shaw, 251. 
Shepherdia, depth.of roots of, 90, 
91. 
Shrubs, for dry-farms, 251. 
Sterra Nevadas, description of, 36. 
Silica, clay from combined, 57; 
sand from uncombined, 58. 
Silver poplar, on dry-farms, 253. 
Sixty-Day oats, 241. 
Small 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; 
summary of explanations of, 292; 
of dry-farm, 415; critical ele- 
ments of, 283; nitrogen the 
