986 



EXPERIMENT STATION RECORD. 



Simulium— rage. 



larvte, parasites of 361 



review of literature 159 



Sinapis alba, notes, U.S.D.A 145 



Siphons, inverted- 

 construction 85 



frictional resistance in, Colo 885 



Sirup, cane. {See Cane sirup.) 

 Sisal- 

 analyses and valuation 138 



anthracnose, notes 845 



culture and manufacture 831 



culture experiments 434, 632 



culture in Philippines 229 



varieties 434 



Sitotrogacerealella. (See Angoumois grain- 

 moth.) 

 Skim milk- 

 cheese, manufacture 878 



testing, Ind 875 



Skin, biology of 201 



Skylight polarization, change in, U.S.D.A. . . 317 

 Slag. (See Phosphatic slag.) 

 Slaughterhouses — 



in Great Britain, France, Germany, and 



Netherlands 276 



municipal, Ky 60 



Sminthurid sa, economic importance 753 



Smoke, effect on vegetation 32, 131, 432 



Smut- 

 treatment 241 



treatment, U.S.D.A 136 



treatment, "Wyo 697 



(Sec also Barley smut, Corn smut, etc.) 

 Smuts — 



of cultivated plants, cause and treatment 47 



of Great Britain, treatise 745 



Snapdragons, hybridization exi^eriments 329 



Snow— 



chloriu content 815 



effect on soil temperature 122 



nitrogen content 211, 815 



Snowfall of Great I>akes region 815 



Snowstorm in Ohio, West Virginia., and 



Pennsylvania, U.S.D.A 713 



Soap from soy beans 614 



Society for Promotion of— 



Agricultural Science 97 



Plant Breeding in Germany 525 



Sociology, i-ural. (See Rural sociology.) 



Soda , replacement of potash by in microcline . 126 



Sodium — 



benzoate as a food preservative 364 



chlorid. (See Salt.) 



compounds, effect on floiir, Kans 555 



nitrate. (See Nitrate of soda.) 



salts, effect on growth of rice 833 



salts, fertilizing value 627 



sulphate, effect on plant growth 31 



toxicity toward plants, N. Y.Comell 128 



Soil- 

 acidity, determination 715 



analyses, use 119 



analysis, error in 505 



analysis, importance 513 



bacteria, activity 217, 718 



bacteria as affected by lime 127 



Soil— Continued. Page. 



bacteria as affected by protozoa 322 



bacteria as affected by sulphur 532 



bacteria, fixation of nitrogen by 217 



bacteriology, methods in 218 



bacteriology, studies, Mich 624 



biology and physics, ancient ideas on 212 



biology, review of investigations 119 



carbonates, determination, Tenn 808 



chemistry, progress in 119, 212 



chemistry, treatise 512 



constituents, solubility 221 



erosion, cause and prevention, S.C 025 



erosion in forests 743 



extracts, reaction of 121 



extracts, ultramicroscopy of 516 



fatigue, studies: 426,624 



fertility as affected by inundation 213 



fertility, maintenance 23, 426 



fertility, maintenance, S.C 320 



fertility, manual 517 



fertility, relation to fertilizers 821 



fumigant and insecticide, tests, Mass 156 



hygiene, notes 125 



inoculation preparations, tests 718 



investigation and teaching, methods and 



aims 512 



microflora and microfauna, device for ob- 

 taining 28 



moisture as affected by desert rainfall 619 



moisture, effect on growth of cucumbers. . 142 

 moisture, effect on protein content of 



wheat 836 



moisture, effect on protein content of 



wheat, N. Dak 662 



moisture evaporation index 223 



moisture, movements in an Egyptian cot- 

 ton field 21 



moisture, notes 814 



organisms, monograph 323 



physics, review of investigations 119 



protozoa as affected by lime 127 



protozoa, counting 826 



protozoa, inactivity 322 



protozoa, paper on 399 



protozoa, relation to soil bacteria 517 



samples, preparation for study 422 



sampling cylinder, description 421 



solution as an index of soil fertility 124 



solutions as affected by boiling 124 



solutions, flocculation studies 623 



solutions, method of obtaining, Mich 624 



solutions, studies 516 



studies, theory of antagonism of salts in. . 98 



temperature as affected by plant covering 122 



temperature, effect on crop yields 135 



zeolites, properties of 23 



SoUmg crops v. silage for dairy cows, Wis 874 



Soils- 

 acid humus, nitrification in 424 



acid or nonbasic, nitrification in, Ga 517 



acid, utUization, U.S.D.A 23 



action of manganese in, U.S.D.A 823 



adobe, softs in, N.Mex... 517 



adsorption by 321 



air-dried, changes in 123 



alkali, analyses and treatment, N .Dak. . . 622 



