Oct. i, 1920-Mar. is, 1921 



Index 



905 



Sodium — Continued. Page 

 phosphate, effect on availability of potas- 

 sium 616-617 



in southern poultry feeds 143 



Sodium-toluene-sulphon-chloramid. See 



"Chloramin T." 

 Soil- 

 availability of iron 33-62 



effect of — 



carbonate of lime on availability of iron. . 47-49 

 season and crop growth on physical 



state 397-404 



various crops on water extract 663-667 



effect on composition of potato tubers, 



skins, and sprouts 632-634 



moisture, effect on Fusarium-wilt of tobacco 529 

 reaction, effect on Fusarium-wilt of to- 

 bacco 528-529 



relation of calcium content to reaction. . . 855-868 



solution, relation to soil extract 381-395 



temperature, effect on Fusarium-wilt of 

 tobacco 527-528 



Solanin in potato sprouts 623 



Solatium tuberosum — 



attacked by blackleg 3zS"33° 



berries host of Gibber ella saubinetii 16 



composition of tubers, skins, and sprouts. . 623-635 



effect on water extract of soil 663-667 



vascular discoloration of tubers 277-294 



Solidago spp., shelter plants of Pyrausta 



ainsliei 839 



Solids, soluble, in grapefruit 359-372 



Soluble solids in grapefruit 359-372 



Solution, soil, relation to soil extract 381-395 



Somasia helianthana. Syn. Eucosma helian- 

 thana. 



Some Changes in Florida Grapefruit in Stor- 

 age (paper) 357~373 



Some Lepidoptera Likely to Be Confused 

 with the Pink Bollworm (paper) 807-836 



Sorghum — 



susceptibility to formaldehyde injury 241 



See Andropogon sorghum. 



Soybean-cowpea bacteria, comparison with 

 Bacillus radicicola and B. radiobacter 545-554 



Soybean nodule bacteria cultures, effect on 

 milk 550 



Spalangionorpha fasciatipennis, parasite of 



Sitophilus oryza 422 



Spatkimeitenis spinigcra, parasite of Neodi- 

 prion lecontei 757-758 



Spelt. See Triticum spelta. 



Species, new 114, 333, 431, 678, 811, 812-813, 



814-816, 818-819, 823-824, 825-826, 827-828 



Spore-forming bacilli in canned ripe olives. 377-379 



Sprouts, Irish potato, composition 623-635 



Stahl, C. F. (paper): Studies on the Life 

 History and Habits of the Beet Leafhop- 

 per 245-252 



Staphylococci in canned ripe olives 377~379 



Staphylococcus aureus, effect of chlorin dis- 

 infectants upon 88-110 



Starch- 

 hydrolysis by Rhizopus tritici 765-783 



in Chinese colza seed 127 



Starch — Continued. Page 



in plants, influence of cold in transforming 



to su g ar 153-154 



in sweetcorn .• 795-805 



Stenomidae, similarity of one species to 

 Pectinophora gossypiella 816-81 7 



Stewart, G. R., and Martin, J. C. (paper): 

 Effect of Various Crops upon the Water 

 Extract of a Typical Silty Clay Loam 

 Soil 663-667 



Stewart G. R.,etal (paper): Relation of the 

 Soil Solution to the Soil Extract 381-395 



Stigmonota tristrigana. Syn. Laspeyresia 

 tristrigana. 



Stipa, host of Gibberella saubinetii 16 



Stizolobium vines, availability of iron to rice 

 plants in calcareous and noncalcareous soils 50-54 



Storage, effect on — 



Colletotrichum circinans 713-716 



deterioration of sugars 637-653 



grapefruit 357"373 



Strophostyles nodule bacteria cultures, effect 

 on milk 550 



Strymon melinus, pest of Malvaceae.' 834 



Studies in Mustard Seeds and Substitutes: I. 

 Chinese Colza (Brassicacampestris chinolei- 

 fera Viehoever) (paper) 117-140 



Studies on the Life History and Habits of the 

 Beet Leafhopper (paper) 245-252 



Study of Some Poultry Feed Mixtures with 

 Reference to Their Potential Acidity and 

 Their Potential Alkalinity: I. (paper)... 141-149 



"Subculoyd Inula and Echinacea," medici- 

 nal properties 65-84 



Sucrose in grapefruit 359-372 



Sugar Beet Top Silage (paper) 537-542 



Sugar — 



in grapefruit 359-372 



in plants, influence of cold in transforming 



from starch 153-154 



in sweetcorn 795-805 



Sugars, deterioration in storage 637-653 



Sulphate — 

 calcium, effect on — 



availability of potassium 616-617 



growth of plants 40-44 



copper, toxity to snails 196-208 



ferrous — 

 and molasses, availability to rice plants 



in calcareous and noncalcareous soils. . 50-54 

 availability to rice plants in calcareous 



and noncalcareous plants 50-54 



effect on action of gypsum 38-44 



in normal and mottled citrus leaves 166-190 



in soil extract 387-394 



potassium, effect on concentration of soil 

 extract 388-389 



Sulphur — 



in normal and mottled citrus leaves 166-190 



in plants grown with ferrous sulphate and 

 gypsum 42 



in southern poultry feeds 143 



Sunflower plants, comparison with corn for 



silage 787-793 



