INDEX OF SUBJECTS. 



987 



Soils— Continued. Page. 



alkali, of Egypt 21 



analyses (il8, SIS 



analyses, N.Dak (■.22 



and crops, text-book OW 



arable, nitrogen content 716 



arsenic content 3:i, 423 



as aflected by bastard trenching 23t; 



as affected by climate 514 



as affected by earthworms 425 



as affected by fertilization 219 



as affected by heat ing, Hawaii 419 



as affected by humus 122 



as affec-tcd by plant roots 120 



bacterial flora of, N.Y.Cornell 819 



benzene derivatives in, U.S.D.A Gio 



bleached , in North Sea marslies 514 



capillary lift of, measuring 22 



catalytic power 425 



chlorin and sulphur content 422 



circulation of nitrates in (;2S 



classification G21 



clay, as affected by marling 23 



coconut, analyses 20 



cogon, crop-producing power 832 



cohesive power of 214, 215 



colloids in 513, 71S 



composition 5 i:i 



determination of surface area HU; 



effectoncompo-ition of wheat, U.S.D.A.. 440 



effect of firmness on root development 13(i 



evaporation of ammonia from 425 



evaporation of water from 32 1 



ferrous iron in 710 



ferruginous, fixation of phosphcitci-; in 72_' 



fertilizer requirements, determination 119 



forest, nitrate formation in C2 1 



forest, of Germany, productiveness 514 



forest, studies 515 



formation 513 



heated, changes in 123 



hygroscopicity 215 



increase of plant food in 517 



insect fauna of 154 



judging 1 19, 123, 124, 213 



judging, U.S.D.A 628 



lime requirement, determination 422 



loam and sandy, loss of plant food from.. 22 



mechanical analysis 213 



methods of analysis 12. 215, f.24 



minimum water capacity of 121 



moor, nitrate content 325 



nitrification in 23, 399, 51G 



nitrogen transforma tion in 717 



of Abyssinia, notes 431 



of antarctic region, studies 818 



of Arad plains 213 



of Argentina , stud ies 110 



of Bessarabia, studies 320 



of Briti-sh Guiana, analyses 421 



of California, humus content, Cal 714 



of California, management 625 



of California, manual 420 



of Colorado, nitrifying efficiency, Colo 818 



of Cumberland Plateau, improvement, 



Tenn 820 



of Deli, analyses 320 



Soils— Continued. Page. 



of Dutch East Indies 697 



of East Friosland 321 



of Highland Rim, Improvement, Tenn.. . 821 



of Iceland, treatise 119 



of Java and Sum;itra, studies 4'20 



of Java^ hygros«-o;iicity 215 



of Kankakee marsh region, reclamation, 



Ind 518 



of Libyan desert, analyses 20 



of M:u-on County, .Ma.Taskegoo 19 



of Ohio.comiKJsition, Ohio 817 



of Queensland , analy.ses 421 



of rocky deserts of Turkestan 213 



of .south Texas, analyses, Tex 420 



of Sussex area, New Jersey, comix)sition. 622 



of Tamar River Valley 214 



of tropical South .Vmerica 622 



of United States, classification, I'.S.D.A. 19 



of Uruguay, analyses and classification . . 623 



of Virginia, U.S.D.A 319 



of west Tennessee, reclamation 19 



of wine district of .\rad-llcgyalja 213 



organic constitutents of 516 



osmosis in 23 



oxidation of sulphur in 222 



pasture, nitrification in 399 



peat, of Picardy 514 



peat, treatment 119 



peat, unproductiveness of. Ind 518 



physico-chemical studies 215 



plant food production in 624 



i podzol, movement of iron in 216 



I podzol, physical and chemical composi- 

 tion 214 



polygon, of Iceland 515 



productive and unproductive, examina- 

 tion, N.Y.Comell 819 



reaction and basicity of 623 



red clay, of Porto Rico, P.R 818 



red, of Brazil 622 



review of investigations 119 



sampling apparatus for 838 



sandy, green manuring experiments 24 



sandy loam, salts in, N.Mex 517 



sandy, treatment with moor soil 625 



sterilization by quicklime 399 



sterilized, effect on crop yield 217 



sterilized, effect on plant growth 225 



sulphur content, Ky 20 



swamp rice, gases of 515 



swamp, shrinkage from drainage and 



cultivation 120 



thufurorhilly,of Iceland 615 



tropical, -Vzotobacter in 218 



white, notes 213,515 



(5r<'a/.-to Subsoils.) 



Solarium spp.. bud ^'a^iations in 433,529,730 



Solids, determination In evaporated mUk, 



Ind 509 



Solvents, treatise 310 



Sootfall in English tovms and cities 619 



Sorbite as a source of carbon for molds 228 



Sorehead in chickens, immunization 785 



Sorghum— 



cultxire experiments 434 



culture experiments, Hawaii 828 



