990 



EXPEEIMENT STATION RECOED. 



Silage, lactic acid in, Iowa 712 



making and feeding, U.S. D.A 869 



notes 689 



nutritive value, Hawaii 270 



stack system 768 



tests 633 



Silica from feldspar 518 



Silicates as a somce of potash 215, 518, 822 



decomposition by bacteria 316 



weathering 123 



Silicic acid, soluble, ia phosphatic slag 409 



Silk cultuie in Yalung Valley 655 



Silkworm pebriae, notes 762 



Silkworms in Madagascar and Reunion 855 



Silos and silage, notes, Hawaii 270 



comparison of diflerent types 489 



construction 489, 689, 789 



Nebr 593 



handbook 87 



notes 473 



Silver nitrate, effect ongermlnation of barley. 629 



salts, effect on A spergillus niger 554 



Simullum larvae, parasites of 856 



oviposition of Brazilian species 54 



Simulium meridionale. {See Turkey gnat.) 



spp., notes, U.S.D.A 454 



Siphocoryne avenss. (See Grain aphis, Euro- 

 pean.) 



Siricidae of North America 359 



Sirup evaporator, description, Fla 833 



Sirups, table, food value, U.S.D.A 460 



Sisal anthracnose, notes 346 



liber, strength of, U.S.D.A 313 



industry in Hawaii, Hawaii 208 



lactic acid ia 615 



Siskin, pine, destruction of graia aphids by, 



U.S.D.A 452 



Skim milk, analyses 471 



ash analyses, Ohio 861 



dried casein from 676 



for calves 668 



standards, U.S.D.A 777 



testing, Kans 879 



Skunks, breeding for fur 672 



Slag, methods of analysis 795 



use in manufactiu-e of fertilizers, 



U.S.D.A 25 



(See also Phosphatic slag.) 



Slaughterhouses, inspection in Virginia 766 



Sleet storm in northern New York, U.S.D.A . 510 



Slime, formation in soils 723 



Slop, dried, methods of analysis 311 



Sludge, fresh and decomposed, comparison. . 625 



utilization 625 



Smith, J. B., writings of 353 



Smoke, effect on plant growth 422 



life, bibliography 630 



toxicity toward plants 131, 529 



Smudging, cost of 339 



Smut. (See Barley smut, Corn smut, etc.) 



Snakes, experiments with 476 



Snow, fertilizing value. Can 209 



relation to forests 814 



irrigation and forestry 813 



survey in Nevada, U.S.D.A 510 



surveys for predicting stream flow 314 



in Utah, U.S.D.A 721 



Page. 

 Snowbirds, destruction of grain aphids by, 



U.S.D.A ". 453 



Snowfall in Columbia River Basin, U.S.D.A . 510 



measiu-ement, U.S.D.A 121,510 



Snuff, analyses, N.Dak 866 



Soap, detection in ethyl alcohol 312 



methods of examination 811 



Social survey in southern Minnesota 489 



Society for Horticultural Science, proceedings 40 

 Sodium — 



arsenate, tick-killing properties 680, 886 



toxicity 586 



arsenite, destruction of weeds by, Hawaii 748 



oxidation in dipping tanks SS5 



toxicity 586 



benzoate, notes, N.Dak 865 



bicarbonate in artesian water of Virginia. 512 

 bisulphate, use in manufacture of phos- 

 phatic fertilizers 319, 418 



carbonate, effect on germination of seeds . 328 

 chlorid. (See Salt.) 



determination, Ohio 807 



in foods 809 



nitrate. (See Nitrate of soda.) 



phosphate, effect on germination of seeds. 328 



salts, effect on composition ofplants,R.I. 419 



concrete 891 



plants 625 



sozoiodolate, use against spirochetosis in 



fowls 484 



sulphate, effect on germination of seeds. . 328 



sulphite, physiological action 269 



thiosulphate, assimilation by yeast and 



mold fungi 29,30 



fertilizing value 521 



Soil acidity as affected by fertilizers, Fla 238 



notes 816 



Wis 623 



Studies, P.R 815 



analyses, error in 316 



value to the farmer 512 



bacteria, migration of , N.C 21 



relation to angleworms 316 



studies 221 



bacteriology, investigal ions 422 



studies, N.C 21 



conditions in United States and western 



Canada, handbook 598 



experiments at New York Cornell Station 820 



fatigue, notes 243 



fertility— 



as affected by alfalfa 633 



barnyard maniu-e 317 



conservation and improvement 125 



investigations 416 



S.Dak 728 



maintenance, 111 623 



Ohio 213 



relation to fertilizers 213 



fungi 824 



formation, relation to forest cover 643 



inoculating alfalfa with, Nebr 332 



Inoculation, notes 417 



under lime deficiency 820 



moisture — 



as affected by alfalfa 634 



cropping, N.Dak 425 



