1917] 



INDEX OF SUBJECTS. 



977 



Soil survey in — Continued. Page. 



Wisconsin, north-central portion, U.S. 



D.A 20 



Wisconsin, northeastern portion 723 



Soils- 

 absorption in 622 



absorption of ammonia by 219, 425, 816 



acid, growth of legumes on, Wis 514 



acid, liming, Wis 514 



acid, nitrate formation in 22 



acid, of Hawaii 813 



acid, studies 21 



adsorption and acidity in, U.S.D.A 117 



aeration, notes 320, 724, 733 



alkali, drainage, Cal 584 



alkali, drainage, U.S.D.A 186 



alkali, studies, Utah. 118 



analyses, value of, Mass 617 



arable, formation 114 



and, fertilizers for 726 



a.s affected by absorbents 214 



as affected by irrigation and manure, U.S. 



D.A 816 



bacteria in at different depths and sea- 

 sons 21 



biological actions, measuring 116 



black pigment of 815 



calcium compounds in, U.S.D.A 621 



classification 210, 813 



cohesion in 117 



compaction by tractors 400 



courses in 595 



determination of volume weight 197 



disinfection 623 



effect on agriculture 417 



effect on availability of fertilizers, N.J.. . 819 



evaporation from, U.S.D.A 421 



ferriflcation in 813 



flocculation in 21 



frozen, bacteria in 220 



grmdmg, effect on microorganisms 116 



gumbo, water penetration in, U.S. D.A. . 210 

 humid and arid, nitrifyiug powers, U.S. 



D.A 119 



hygroscopic coefficients, determination, 



U.S.D.A 320 



investigations, HI 618 



judging 322 



lime requirement 519 



lime requirement, Mass 822 



lime requirement, Mich 210 



Ume requirement, determination 622 



limed and unlimed, carbon dioxid con- 

 tent 197 



loess, water-soluble material in 421 



management 119 



management. Wis 813 



methods of analysis 204, 299, 612 



methods of analysis, W.Va 318 



methods of mechanical analysis 114, 720 



moor, sulphur in 424 



muck, management 236 



muck, management, U.S.D.A 191 



niter spots in 423 



of Cuba, analyses 511 



of experimental farms in Burma 323 



of Fiji, analyses 319 



Soils— Continued. Page. 



of Hawaii, composition, Hawaii 618 



of Hawaii, studies 813 



of Illinois, 111 61S 



of Imperial Valley, analyses, Cal 790 



of Iowa, classification 61d 



of Jones County, Ga., analyses 812 



of Kentucky, distribution of phosphorus. 421 

 of Kuala Pilah and Jelebu districts, 



Malay States 115 



of New York, studies 21 



of New Zealand, analyses 723 



of North Carolina 323 



of Nova Scotia 723 



of Ohio 620 



of pampas of Argentina 886 



of Sabak district, Malay States 323 



of Sao Paulo, Brazil, analyses 210 



of Texas, fungus flora 434 



of Uruguay, analyses 114 



of West Virginia, analyses, W.Va 722 



orchard, nitrates in, N.H 724 



organic matter of 512, 815 



organic phosphorus in 212 



peat, improvement 119 



prairie, phosphorus in 614 



protein decomposition in 25 



reaction of, determination 505 



red clay, fertilizer requirements, P.R 323 



red, of Mediterranean region 115 



role of Actinomycetes in 518 



role of spore-forming bacteria in 617 



sampling 617 



sandy and pebbly, of Finland 813 



scmiarid, nitrification in, U.S.D.A 422 



sterilization 618 



sulfofication in 22 



surface forces, measurement 319 



swamp, judging in 



swamp rice, gases of 116 



temperature of 617 



tobacco, analyses, Conn. State 628 



tobacco, cultivation 613 



treatise 11 4, 617 



Solarium— 



commersonii, description and culture 637 



elseagnifolium, chymase of 412 



Solar- 

 corpuscular rays, U.S.D.A 419 



haloat Miami, Fla., U.S.D.A 7!8 



Soldiers — 



farm work for 392 



land settlement for 290, 697 



maimed, agricultural reeducation 794 



Solenothrips rubrocinctus, notes 457 



Solutions- 

 colored, acidity of 299 



electrical conductivity 503 



Sore throat streptococci, sources 577 



Sorghum — 



culture e.xperiments 3.32. 735, 830 



culture experiments, U.S.D.A 133, 830 



culture under dry farming 



culture under dry farming, Utah... 

 P^isarium disease, studies, Iowa. . . 



grain, as human food, U.S.D.A 



gram, digestibiUty, U.S.D.A 



629 

 52S 

 348 

 C61 

 660 



