INDEX 433 
at various localities, 132; of 
capillary water, 137; loss of 
soil-water by, 165; causes of 
evaporation of soil-moisture, 160; 
conditions of evaporation from 
soils, 136; in cloudy weather, 
150; promoted by winds, 135; 
furthered by alkali, 149; in 
fall and winter, 133; chiefly 
at surface, 139-141; regulating, 
130; dry soils prevent, 148; 
effect of rapid top drying of soils, 
147-152; reduced by mulches, 
155; cultivation reduces, 152- 
156; fall plowing prevents, 127; 
a cause of transpiration, 174. 
Experiment Stations, work for dry- 
farming, 365, 371. 
Fall, evaporation in, 134. 
Fallow, see also Cultivation. 
Fallowing, 122-125, 4138, 414; 
beneficial effects of, 188; di- 
minishes evaporation, 138; effect 
on transpiration, 188; to vary 
with climate, 125, 202, 203; 
in soil formation, 55; cause of 
failure of fallow experiments, 124; 
right kind of, 124; frequency of, 
125; in all dry-farm districts, 
194; hoed crops in place of, 200; 
and plowing, 193; and seed-bed, 
212; and amount to sow, 223; 
and fall planting, 200, 218; and 
crops, 124; danger of weeds on, 
124, 162; in rotations, 299; 
discussed by Dry-farming Con- 
gress, 195; when adopted by 
Campbell, 364; beginning of, 
in Columbia Basin, 357; in 
various states, 196, 197; re- 
sults on Barnes farm, 405; occa- 
sional, in Great Plains, 119; 
results at Montana Station, 202; 
Indian Head record, 408, 410; in 
Saskatchewan, 202. 
Farrell, 98, 215, 216. 
2F 
Farrell, Geo. L., early dry-farmer 
in Utah, 355. : 
Fertility, see also Plant-food, Soil 
Fertility. 
Fertilizers, effect on transpiration, 
182, 186. 
Fescue grass, transpiration figures 
for, 185. 
Field bean, 250. 
Field pea, 249. 
Fig, on dry farms, 252. 
Fir, on dry-farms, 253. 
Fleming and Staulking, 343. 
Flood water, as source of perma- 
nent.supply, 334. 
Flour, nutritive value of dry-farm, 
276. 
Foise wheat, 240. 
Forbes, 348. 
Fortier, 155, 158, 341, 342, 369. 
Foster, 369. 
France, olive industry in Tunis, 252. 
Frost, and fall planting, 216; and 
method of sowing, 225. 
Fruit, dry-farm orchards in Great 
Plains, 252; on irrigated farms, 
236. 2 
Fuller, 338. 
Furrow, drill furrow and sowing, 
225. 
Garden, preparation on a dry-farm, 
347. 
Gardner, 185. 
Gasoline, engines for pumping, 342; 
machinery in dry-farming, 322, 
325. 
Germany, emmer in, 2438; first 
determinations of water vs. plant 
production in, 12; steam plowing 
in, 323; water absorption by 
seeds in, 209. 
Germ life, effect of pore-space on, 
102. 
Germination, see also Sowing; con- 
ditions of, 205; mechanism of, 
208; effected by soil moisture, 
