6i8 



Journal of Agricultural Research 



Vol. xvni 



Page 

 Sulphur — 



oxidation in soils 3 29-345 



sulphate, in water-free composts 334-339 



Sulphured oats, method of measuring acidity . 33-49 

 Sunflower silage — 



acidity 326 



comparison with com silage 327 



Sunflower Silage (paper) 325-327 



Swanson, C. O., Call, L. E., and Salmon, S. C. 

 (paper): Losses of Organic Matter in Mak- 

 ing Brown and Black Alfalfa 299-304 



Sweet potato, host of Scleroiium rotfiii .... 127-128 



Tarache aprica at light traps 477-481 



Tarkhi-um — 

 megaspermum, type of genus Tarichium. . . 401 

 uvella. Syn. Sorosporellauvella. 

 Tartaric acid. See Acid, tartaric. 

 Taubenhaus, J. J. (paper): Recent Studies 



on Sclerotium rolfsii Sacc 127-138 



Temperature — 

 effect on — 



apple-scald 219-220, 223-225 



Bacterium glycineum 187-188 



cereal seeds 379-390 



normal, means of detennining 499-510 



Temperature Relations of Certain Potato- 

 Rot and Wilt-Producing Fungi (paper) . . 511-524 

 TeTminalia — 

 caiappa, host fruit of Ceraiitis capiiata. . 442-446 

 chebula, host fruit of Ceratilis capitata. . . . 442-446 



Tetrads ciocallata at light traps 478-481 



Tetrasiichus giffardiaii'us, parasite of Ceratilis 



capitata 441-446 



Theveiia neriifolia, host fruit of Ceraiitis capi- 

 tata 442-446 



Timiothy. See Phleum pratense. 

 Tobacco. See Nicntiana tabacum. 

 Tomato. See Lycopersicon escuientum. 

 Toxic limits of — 



acids 272 



alkaline salts 271 



ammonium sulphate 272-274 



nitrates 272-274 



Treatment of Cereal Seeds by Dry Heat 



(paper) 379-39° 



Triticum — 

 aestivum — 

 effect of carbonates of calcium and magne- 

 sium on yield in acid soils 121-122 



yellow-berry 155-169 



dicoccum, host plant of Oscinisfrit 471 



sp.— 



host plant of Oscinisfrit 465-471 



seedlings, effect of lime on sodium-chlorid 



tolerance 347-356 



vulgare, basal glumerot S43-552 



Trypanosoma eguiperdum, cause of dourine. 145-154 

 Tryptophane, amino acid lacking in zein .... 391 

 Turner, W. B. (paper): Lepidoptera at Light 



Traps 475-4^1 



Turner, W. F., and Baker, A. C. (paper): 



Apple-Grain Aphis 311-324 



Unsulphured oats, method of measuring 



acidity 33-49 



Uletheisa bella at light traps 477-481 



Vance, Lulu E., and Neidig, Ray E. (paper): 

 Sunflower Silage 325-327 



Page 



Vernonia noveboracensis, host plant of Oscinis 

 frit 471 



Verticillium albo-atrum, temperature rela- 

 tions 512-524 



Vigna sinensis, host of Sclerotium, rolfsii 129 



Viola — 

 fimbriatula, effect of relative length of day 



and night 567 



odorata, host of Sclerotium, rolfsii 129 



papilionacea, effect of relative length of day 

 and night 599-600 



Violets — 

 wild. See Viola papilionacea. 

 See Viola fimbriatula. 



Viviania — 

 cinerea. Syn. Biomyia georgiae. 

 georgiae. Syn. Biotnyia georgiae. 



Water-extractable matter of soils, effect of 

 variation in moisture content 139-143 



Watermelon. See CitruUus vulgaris. 



West, F. L., Edlefscn, N. E., and Ewing, S. 

 (paper): Determination of Normal Tem- 

 peratures by Means of the Equation of the 

 Seasonal Temperature Variation and a Mod- 

 ified Thermograph Record 499-510 



West.R. M.,etal. (paper): Notes on the Com- 

 position of the Sorghum Plant 1-31 



West Indian medlar. See Mimusops elengi. 



Wheat. See Triticum spp. 



Wheat-grass — 

 awned. See Agropyrum. caninum. 

 slender. See Agropyrumtenerum. 



Wheatscab, effect of dry heat 387-390 



White grubs. See Lachnoslerna spp. 



Willaman, J. J., West, R. M., Spiestersbach, 

 D. O., and Holm, G. E. (paper): Notes on 

 the Composition of the Sorghum Plant .... 1-31 



Willard, H. F. (paper): Work and Parasitism 

 of the Mediterranean Fruit Fly in Hawaii 

 during 1918 441-446 



Wilt-producingfungi,temperaturerelations . 511-524 



Winter wheat. See Triticum aestivum. 



Work and Parasitism of the Mediterranean 

 Fruit Fly in Hawaii during 1918 (paper) . 441-464 



Worm, army. See Prodenia eridania. 



Xanlhotype crocataria at light traps 477-481 



Xanthosoma sagitifolium, host of Sclerotium, 

 rolfsii 129, 130 



Xylan in juice of Sorghum vulgare 15-27 



Yellow-berry — 



chemical composition of kernels 167 



physical characters of kernels 163-166 



Yellow-Berry in Hard WinterWheat (paper) 155-169 



Yellow oleander. See Thevetia neriifolia. 



Ypsia unduiaris at light traps 477-481 



Zea mays — 

 development of — 



embryo and endosperm 263 



embryo sac 259-261 



pistillate spikelet and fertilization 255-266 



silk and pollen tube 261-262 



effect of air on pollen 533 



fertilization 863 



host of — 



Oscinis frit 471 



Sclerotium rolfsii 127-128 



poultry rations, supplemented by meat 

 scraps and soy bean proteins 391-398 



Zein, protein in Zea mays 391 



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