INDEX OF SUBJECTS 
61 
Toxins, decomposition by soil organisms, 
Ala. Bui. 225. 
Toxoptcra graminum, Ky. Bui. 265. 
Tractors — 
cost of operation, Calif. Bui. 415 ; 
Ohio Bui. 383. 
effect on farm organization, Ohio Bui. 
383. 
operation, Calif. Bui. 415. 
tests, Nebr. Bui. 212. 
Transpiration of cereals, Iowa Res. Bui. 90. 
Transplanting vegetables, N. Y. Cornell 
Mem. 87. 
Tree crickets, Oreg. Bui. 223. 
Trees — 
Christmas trie plantations, Mich. Spec. 
Bui. 145. 
light requirement, Vt. Bui. 257. 
TrifoUum alexandrinum, Calif. Bui. 389. 
Tuberculosis — 
injection of cattle, Wyo. Bui. 140. 
of fowls, Wyo. Bui. 142. 
swine, Nebr. Res. Bui. 30. 
Tulips — 
blossom blight, 111. Bui. 205. 
gray bulb-rot, N. Y. Cornell Mem. 89. 
Udder, bacterial flora, S. Dak. Bui. 218. 
Urediniospores of wheat stem rust, Nebr. 
Res. Bui. 35. 
Ustilago spp., Ohio Bui. 390. 
Utah agricultural experiment station, bien- 
nial report, 1923-24, 1925-26, Utah Bui. 
192, 198. 
Vaccine, in control of abortion, Minn. Tech. 
Bui. 43. 
Vegetables — 
canning, acidity, Calif. Hilgardia, V. 1. 
No. 13. 
colloidal properties, Mich. Tech. Bui. 
74. 
culture, Virgin Islands Bui. 6. 
effect of fertilizers, and planting time, 
Guam Bui. 5. 
in high altitudes, Colo. Bui. 309. 
market demand, Conn. Storrs Bui. 138. 
market preferences, R. I. Bui. 203. 
marketing, N. Y. Cornell Bui. 453. 
seed production, Idaho Bui. 140. 
transplanting, N. Y. Cornell Mem. 87. 
varieties, N. Dak. Bui. 187. 
water content as affected by nutrients, 
Mich. Tech. Bui. 74. 
Ventilation, storage cellars, Pa. Bui. 191. 
Tenturia inaequalis, Del. Bui. 140 ; Mass. 
Bui. 222; Mich. Tech. Bui. 76; Wis. 
Res. Bui. 73. 
Vermont agricultural experiment station, 
report, 1919-1925, 1926, Vt. Bui. 249, 
260. 
YerticiUium alboatrum, Oreg. Bui. 221. 
Vetch, production, Oreg. Bui. 213. 
Vinegar, manufacture, Wash. Bui. 202. 
Vineyards — 
planting stock selection, Calif. Hil- 
gardia, V. 2, No. 1. 
(Sec also Grapes.) 
Virus transmission from potatoes, Wis. 
Res. Bui. 63. 
Vitamin A, in poultry feeds, Calif. Bui. 
384, 412. 
Vitamin E, effect on reproduction, Mo. Res. 
Bui. 94. 
Vitamin requirements of pigs, Ohio Bui. 
395. 
Vitis vinifera — 
pruning, effect on pollen and set of 
fruit, Calif. Hilgardia, V. 2. No. 5. 
pruning, effects, Calif. Hilgardia, V. 1. 
No. 20. 
Wagons, draft of, Mo. Bui. 237. 
Walnuts — 
codling moth in, Calif. Bui. 402. 
seedlings, absorption of ions, Calif 
Hilgardia V. 2, No. 4. 
Warehouses, potato, organization, Minn. 
Tech. Bui. 28. 
Washington agricultural experiment sta- 
tion, report, 1925, 1926, Wash. Bui. 196, 
208. 
Water — 
conservation district, Cache County, 
Utah Bui. 193. 
duty of water experiments, N. Mex. 
Bui. 149. 
fluctuations, Kearney Park, Calif. Hil- 
gardia, V. 1, No. 7. 
ices, manufacture, N. Y. State Bui. 
536. 
irrigation, Colorado River, Ariz. Bui. 
100. 
irrigation, use and waste, Ariz. Bui. 
101. 
resources of Arizona, Ariz. Bui. 114. 
supply, farm, W. Va. Bui. 206. 
(See also Drainage,. Irrigation, Wells.) 
Weather influence on grain diseases, Wis. 
Bui. 379. 
Weeds — 
effect on cereals, Iowa Res. Bui. 96. 
in corn, 111. Bui. 259. 
in lawns, Colo. Bui. 310. 
perennial, Colo. Bui. 313. 
Wells- 
drilling, stovepipe method, Ariz. Bui. 
112. 
irrigation and drainage, Mont. Bui. 
182. 
(See also Drainage, Irrigation, Water.) 
Western yellow blight, resistant tomatoes, 
Calif. Hilgardia, V. 2, No. 3. 
Wheat — 
baking qualities, Kans. Tech. Bui. 19. 
baking tests, Mo. Bui. 241, Tech. Bui. 
87; N. Dak. Bui. 200. 
breeding. N. Dak. Bui. 200. 
9 by-products for pigs, Minn. Bui. 219. 
ccst of production. N. Dak. Bui. 199 ; 
Ohio Bui. 396. 
culture, W. Va. Bui. 200. 
dwarfing. Minn. Tech. Bui. 33. 
experiments, Mont. Bui. 197. 
