534 



Journal of Agricultural Research 



Vol. Ill 



Stipa— 



minor — Page. 



forage value of 97 



viability of seed of, in range lands io6 



occidentalis — 



forage value of 97 



viability of seed of. in range lands io6 



Studhaltcr. R. A., et al. (paper). Air and 

 Wind Dissemination of Ascospores of the 



Chestnut-Blight Fungus 493-526 



Studies in the Expansion of Milk and Cream 



(paper) 251-268 



Sudan grass. See A ndroPogon sorghum aethi- 



opicus. 

 Sedge. See Carex spp. 

 Sugar beet. See Beta vulgaris. 

 Sunflower. See Helianthus spp. 

 Susceptibility of Citrous Fruits to the Attack 

 of the Mediterranean Fruit Fly (paper). . 311-330 



Tansy, wild. See Achillea lanutosa. 

 Teosinte. See Euchlaena mexicana. 

 Terminalia catappa, host plant of Ceratitis 



capitata 316, 364 



Tettacarbonimid, a nitrogenous soil constit- 

 uent 175-178 



Tetrasiichus giffardii, probable parasite of 



Ceraitits capitata - 3^3 



Thistle, Russian. See Salsola peslifer. 

 Tbom, C, and Shaw. R. H. (paper), Moldi- 



ness in Butter 301-310 



Thompson, A. R. (paper). Organic Phos- 

 phoric Acid of Rice 425-430 



Three-Cornered Alfalfa Hopper (paper) 343-362 



Timothy, alpine. See Pldeum alpinum. 

 Tobacco, effect of dilution upon the infectiv- 



ity of the virus of the mosaic disease of 295-299 



Topography, relation of, to loss of forage plants 



in range lands 142 



Transplanting, effect of. on pecan rosette. . 152-155, 



167-168 



Trickoderma sp., growth in butter 307-308 



Trichogrammidae, parasites of A grilus bilinea- 



tus 29-J 



Tri/olium — 



incar7iatum, water requirement of 30. 



33>35.52»59j6i 

 praiense — 



host plant of Aphts bakeri 433 



host plant of Slictocephala festina 346 



spp.. host plant of Aphis brevis 431 



Trisetum spicalum, forage value of 97 



Triticum spp. — 

 effect of fertilizer on water requirement of. .Sj 50-51 

 effect of screened inclosure on water re- 

 quirement of 3 



host plant of St iciocephala festina 346 



water requirement of 8-10, 50-56, 58, 60-62 



Tumbleweed. See Amaranthus graecizans. 

 Turnip. See Brassica. 



Two Clover Aphids (paper) 431-433 



Urine, loss of chemical energy of feed in . . .^ . 440-449 



Page. 

 Use of logarithmic curves in biological and 

 agricultural investigations 41 1-413 



Wallowa National Forest, topography and 



soil 94-95 



Walters, E. H.. and Shorey. E. C. (paper), A 

 Nitrogenous Soil Constituent: Tetracarbon- 

 imid 175-178 



Watermelon. See Citrullus vulgaris. 



Water requirement — 



definition of a 



of plants, relative 1-64 



Weed, water requirement of 46-49 



Weed, woolly. See Hieracium cytwglossoides. 



Wheat. See Triticum. 



Wheat-grass. See Agropyron. 



WUdennuth. V. L. (paper), Three-Cornered 



Alfalfa Hopper 343-36a 



Willow. Nuttall. See Salix nuttalln. 



Wind dissemination of ascosp>ores of Endothia 



parasitica 493-526 



Valeriana sitchensis, forage value of 97 



Vcratrum viride — 



forage value of 97 



viability of seed of, in range lands 106 



Vetch. See Vicia. 



Vicia spp.. water requirement of 3o~3^, 



33-36, S2> 59.61-62 



Vigna sinensis — 

 host Yt^a-ntoiStictocephala festina. . 34S.35o-35i»359 



injury to, by Slictocephala fesitna 359 



water requirement of 30-31, 35>52-53»S9.6i 



^anthitnn commune, water requirement of. . 47, 



52,60,62 

 XyloPhruridca agrili, parasite of Agrilus vitta- 

 ticollis 184 



Yarrow. See Achillea lanidosa. 



Zea viays, water requirement of 17-20, 



50,53-55-56,58,61 

 Zone- 

 Arctic- Alpine, character of vegetation of . . 97-9S 

 Canadian — 



character of vegetation of 96 



climate of 98-100 



inception of growth of forage plants in. . 101-102 

 Hudsonian — 



character of vegetation of 96-97 



climate of 98-100 



development of forage plants under year- 

 long protection in 121-1 24 



flower-stalk production in 102-104 



inception of growth of forage plants in. loi-ioa 

 Transition — 



character of vegetation of 95-96 



climate of 98-100 



development of forage plants under year- 

 long protection in 124-125 



inception of growth of forage plants in. . 101-102 ' 



if. 



