Oct. I, 1919-Mar. IS, 1920 



Index 



617 



Sodium — Continued Page 



sulphate, effect of — 



aluminum oxid on toxicity to wheat 



seedlings 3S2-3S3> 35^ 



barium chlorid on toxicity to wheat 

 seedlings 352-353) 3S6 



calcium oxid on toxicity to wheat seed- 

 lings 352-353)356 



calcium sulphate on toxicity to wheat 

 seedlings 352-353)356 



ferric oxid on toxicity to wheat seed- 

 lings 352-353)356 



magnesium sulphate on toxicity to wheat 

 seedlings 35^-353) 356 



potassium chlorid on toxicity to wheat 



seedlings 352-353)356 



sodium nitrate on toxicity to wheat seed- 

 lings 352-353) 356 



Soil- 

 acid, effect of carbonates of calcium and 



magnesium 119-125 



"alkali," effect of lime on salts 347 



constituents, rate of absorption at succes- 

 sive stages of plant growth 51-72 



effect of — 



oxidation of sulphur 329-345 



variation in moisture content on water- 



extractable matter 139-143 



relation of moisture in substrata to salt 



balance 357-378 



Soja max — 



bacterial blight 179-194 



effect of relative length of day and night . 557-558, 

 560-362, 569-570 

 Solanum — 



melangena, host of Sclerotium Tolfsii 129 



tuberosum, host of — 



Pylhium debaryanum 275-298 



Sclerotium rolfsii 129 



Solidago juncea, effect of relative length of day 



and night 567 



Sorghum viUgare, composition of — 



juice 13-27 



plant 1-12 



Sorosporella — 

 agrotidis. Syn. Soros porellauvella. 

 uvella — 



fungous parasite of noctuid larvae 399-440 



culture 422-430 



inoculation experiments 430-436 



life history 405-416 



phagocytosis 417-422 



Sulphate, magnesium, in poultry rations. . . . 394 

 Soybean — 

 proteins, comparison with meat scraps as 



supplement to corn for growing chicks. 391-398 

 See Soja max. 

 Spartina michauxiana, host plant of Oscinis 



frit 471 



Speare, A. T. (paper): Further Studies of 

 Sorosporclla uvcUa, a Fungous Parasite of 



Noctuid Larvae 399-440 



Species, new 175, 188, 549 



Sphaeropsts malorum, effect on sugar content 



of host 277 



Spikclct, pistillate, development in Zea 

 mays 255-266 



Spinal — Page 



cord, effect of dourine on 149-152 



ganglia , effect of dourine on 152-153 



Spores, mold, enzymic activity. .. 195-209,537-542 

 Spotblotch of barley, effect of diy heat. . . . 387-390 

 Spriestersbach, D. O., et al. (paper): Notes 



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

 Starch— 

 I in potato tubers attacked by Pylhium 



debaryanum 277-278 



in Sorghu m vulgare 4-30 



in yellow-berry wheat 167 



Steers, nitrogen metabolism 241-254 



Strawberry — 

 guava. See Psidium cattleianum. 

 See Fragaria spp. 

 Stripe disease of barley, effect of dry heat. . 387-390 

 Substrata, effectof moisture on salt balance 357-378 

 Sucrose — 



in Sorghum, vulgare 4-30 



loss in sugar solution due to invertase ac- 

 tivity of mold spores 538-542 



Sudan grass. See Grass, Sudan. 



Sugar in potato tubers attacked by Pylhium 



debaryanum. 277-278 



Sugars, reducing, change due to invertase 



activity of mold spores 538-542 



Sulphur in poultry rations 394 



Sulphuric acid. See Acid, sulphuric. 

 Sulphate — 



absorption by plant 73-117 



ammonium, toxiclimits 272-274 



calcium, effect on— 

 sodium-chlorid tolerance of wheat seed- 

 lings 352 



sodium-sulphate tolerance of wheat seed- 

 lings 352-353) 356 



solutions toxic to citrus seedlings 270 



in soils at various moisture contents. ...... 141 



magnesium — 

 effect of moisture in substratum on phys- 

 iological proportion to other salts. . . . 357-378 



effect on — 



sodium-bicarbonate tolerance of wheat 



seedlings 353 



sodium-chlorid tolerance of wheat seed- 

 lings 352 



sodium-sulphate tolerance of whest 



seedlings 352-3S3)3s6 



iron, in poultry rations 394 



sodium, effect of — 

 aluminum oxid on toxicity to wheat 



seedlings 352-353-356 



bariimi chlorid on toxicity to wheat seed- 

 lings 352-353.356 



calcium oxid on toxicity to wheat seed- 

 lings 352-353.356 



calcium sulphate on toxicity to wheat 



seedlings 352-353,356 



ferric oxid on toxicity to wheat seed- 

 lings 352-353.356 



magnesium sulphate on toxicity to wheat 



seedlings 352-353)356 



potassium chlorid on toxicity to wheat 



seedlings 3S2-3S3.3S6 



sodium nitrate on toxicity to wheat seed- 

 lings 352-353,356 



sulphur in water-free composts 334-339 



