INDEX 
Tarahumart Indians, as dry-farm- 
ers, 353. 
Temperature, and soil formation, 52; 
of dry-farm territory, 42; factor 
in transpiration, 177; in germi- 
nation, 206. 
Tennessee Winter barley, 242. 
Texas, area, 27; type of rainfall 
over, 40; soils of, 74; evapora- 
tion in, 132; climate and plant 
composition in, 272; milo in, 
245; present status of dry-farm- 
ing in, 390. 
Texas Station, dry-farming in, 370. 
Thames, transpiration in water 
from, 180. 
Thresher, combined with harvester, 
230, 321. 
Tillage, see Cultivation, Mulch; ‘‘is 
manure,” 204; “is moisture,” 
204, 
Tilth, good tilth, 101. 
Tomato, water need of, 178. 
Tooele County, Utah, early dry- 
farming in, 356. 
Topography, of dry-farm territory, 
35-38. 
Traction engines, 321. 
Transpiration, compared with evap- 
oration, 166; value of, 175; 
evap ration a cause of, 174; 
conditions influencing, 175; and 
plant-food, 180; and _ header 
stubble, 191; effect of stopping, 
175; for a pound dry matter, 
182; loss of soil-water by, 165; 
regulating the, 165, 186. 
Transvaal, fallowing in, 197; steam 
plowing in, 323. 
Trees, extent of root development, 
91; for dry-farms, 251. 
Tschaplowitz, 183. 
Tull, Jethro, 204, 226, 317, 362; 
life and works, 378. 
Tunis, cultivating wheat in, 163; 
olive industry in, 252; early 
dry-farming in Tunis, 352. 
443 
Turkey, fallowing in, 197; present 
status of dry-farming in, 396; 
wheat, 238. 
United States, rainfall over, 25; 
soil divisions of, 74. 
United States Department of Agri- 
culture, 185, 197, 233, 237, 372, 
ata. 
United States Weather Bureau, 25, 
38, 372. 
Utah, area, 26; type of rainfall in, 39; 
soils of, 75, 76; increase in fer- 
tility of, 228; evaporation in, 
132; deep and fall plowing in, 
195; water storage from fall 
plowing, 127; fallowing in, 196; 
depth of roots in, 90; water 
absorption by seeds in, 209; 
run-off from torrential rain, 98; 
water requirements of plants in 
Utah, 16; drouth of 1910, 411; 
wells on Utah deserts, 339, 340; 
milo in, 246; dry-farm peach 
orchard in, 251; size of a dry- 
farm in, 301; continuous record 
of Barnes farm, 403; composi- 
tion of flour from, 276; origi- 
nated dry-farming, 193, 354, 359; 
present status of dry-farming in, 
386; second Dry-Farming Con- 
gress in Salt Lake City, 376; 
state aid for dry-farm studies, 
368. 
Utah Station, 84, 109, 112, 120, 
124, 140, 188, 151, 155, 158, 
185, 187, 261, 267, 345, 368. 
Varieties, see also Crops; need of 
standard wheat, 240. 
Vegetables, on dry-farms, 254; on 
irrigated farms, 236. 
Vegetation, native vegetation on 
arid soils, 79. 
Vernon, Lovett, and Scott, 343. 
Vetch, 251; for nitrogen, 297. 
