740 



Journal of Agricultural Research 



Vol. XII 



Soil— Continued. Page 



cropped and uncropped — 

 relation between soluble soil nutrients 



in 317-363 



seasonal variations 371-382 



effect of leaching on freezing-point depres- 

 sions 386-3S7 



extract — 



effect of crop growth on 311-368 



effect of season on 311-368 



relation to crop produced 317-363 



filni water, reaction 23-24 



humus, relation to orange production. . . . 513-516 

 hydrogen-ion concentration. See Soil 

 reaction. 



potassiiun chlorid on 146 



influence of nitrates on — 



Azotobacter in 1S7-208 



Bacillus radicicola in 208-226 



moisture, effect on soil solutions 370-371 



nutrients in — 



effect of carbon dioxid on 334-339 



effect of temperature on 334-339 



particles, motion in plowing 162-173 



solubility of phosphoric acid in — 



effect of ammonium sulphate on 674 



effect of calcium carbonate on 674 



effect of tricalcium phosphate on 674 



reaction — 



effect of acid phosphate on 27-28 



effect of ammonium sulphate on 2S-30 



effect of carbon dioxid on 140-145 



effect of lime on 27-28 



effect of monocalciinn phosphate on 28-30 



effect of potassium chlorid on 146 



effect of potassium sulphate on 26-27 



solution — 

 effect of — 



carbon-dioxid gas on 384-385 



drying on 385-3S6 



incubation on 383-384 



moisture on 370-371 



relation of water extracts to 387-391 



water extracts, index of crop production . . 297-309 

 Wisconsin, bacteria of — 



influence of calcium carbonate on. . . . 469-499 



influence of calcium chlorid on 479-480 



influence of dibasic magnesium phos- 

 phate on 479-499 



influence of limestone on 469-499 



influence of magnesivun carbonate on . 474-499 

 influence of magnesium chlorid on. . . 479-480 

 influence of monocalcium phosphate 



on 469-499 



Solanum tuberosum — 



origin 601 



weevils affecting 601-604 



Species — 



emended 454-457 



new 603-604, 611 



Speck, comparison with tobacco wildfire. . 451 



Spelt. See TriticuJn. Page 



SpigeUa, use as anthelmintic 428 



Sporophore, wood-rotting fungus — 



influence of inoculum on development 80 



position on media 79 



production of 65-80 



relation of hght to production of 65-76 



relation of temperature to production of . . . 67-68 



Starch— Page 



content of Ipomoea batatas 10-15 



digestion by calf S74-S78 



hydrolysis of casein in presence of, effect of 



time of digestion on 1-7 



use as feed in addition to milk for young 

 calf 577-578 



Stearic acid. Sec Acid, stearic. 



Stephen, plow bottom, description 177-178 



Sterility in the Strawberry (paper) 613-670 



Stewart, G. R. (paper): Effect of Season and 

 Crop Growth in Modifying the Soil Ex- 

 tract 311-360 



Stippen. See Bitter-pit. 



Stomach worms. See Haemonchus contortus. 



Storage — 



apple, relation of time of picking to develop- 

 ment of spots in 119, 128, 129 



wheat 685-714 



Strawberry. See Fragaria spp. 



Strawberry guava. See Psidium cattleianum. 



Studies in Soil Reaction as Indicated by the 

 Hydrogen Electrode (paper) 19-31 



Study of the Plow Bottom and Its Action 

 upon the Furrow Slice, A (paper) 149-182 



Sugar content in Ipomoea batatas 10-15 



Sweet-polato. See Ipomoea batatas. 



Taenia spp., in dogs, effect of anthelmintics 

 on 4oofi 



Tapeworm. See Dipylidium caninum; Monie- 

 zia spp.. Taenia spp. 



Tartar enjetic, use as anthelmintic 401-402 



Temperature — 

 effect on water-soluble nutrients in soil. . 334-339 

 influence on respiration of stored wheat. . 703-706 

 relation to corn-stover silage fermenta- 

 tion S92~594 



relation to sporophore production in wood- 

 rotting fungi 67-68 



Terminalia spp., food plants of Ceraiitis capi- 

 tata los 



Terpineol. toxicity to insect eggs 581 



Tetraslichus giffardianus — 



cannibalism 288-296 



parasite of Ceratitis capitata 106-108, 288-296 



Thievelia neriifolia, food plant of Ceratitis capi- 

 tata 10s 



Thiophene, toxicity to insect eggs 581-586 



Thiophenol, toxicity to insect eggs 581 



Thymol, use as anthelmintic 423-425 



Tobacco. See Nicotiana tabacuin. 



Tobacco wildfire — 

 anatomy of plant tissues affected with. . . 453-454 



appearance of 450-451 



causal organism of 4S4-4S7 



comparison with frogeye 451 



comparison with speck 451 



dissemination 456-4S7 



distribution 449-450 



economic importance 450 



history 449-450 



inoculation 4SI-4S3 



isolation 45I-4S3 



origin 456 



symptoms 45' 



Tobacco Wildfire (paper) 449-4s8 



Toluene, toxicity to insect eggs 581-586 



