INDEX OF SUBJECTS. 



1323 



I'age. 



Soils, forest, studies H13 



formation as affected by weathering. . . 517 



function of water in, U.S.D.A 686 



granitic, potash in 431 



gravelly, ice columns in, U..S.D.A. 114 



greenhouse, renewal, Md 238 



guano for 824 



hardpan, utilization for forestry 645 



investigations in Illinois 832 



isolation of toxic substances from, 



U.S.D.A 919 



lessons on, in public schools 591 



lime equivalent, determination 807 



requirements, Fla 117 



liming experiments 126 



melting properties 619 



methods of analysis 314,509, 



610,618,704,715,1014 



f.S.D.A 29 



moor, in Germany 16,617 



reclamation 103 



in Germany 317 



niUic nitrogen in 716 



nitrification in 518,519,522.718,821 



Tex 424 



as affected by fertilizers . 621 

 humus. 



Minn... 436 



studies 717 



- nitrogen content- 

 as affected by crops, U.S.l>.-\ 536 



farming, WU 10 



fertilizers 727 



liming 126 



plants 717 



noncalcareous, fertility 819 



of -Vdzhibay Experiment Field, studies 517 



.\frica, agricultural value 214 



Arkansas, analyses 815 



Belgium, analyses 516,1023 



fertilizer requirements 516 



Cape Colony 1014 



of Good Hope, analyses 216,716 



Condro^, analyses 216 



Connecticut, bibliography 617 



Egypt and Sudan, anal.vses 118 



England, analyses 818 



grass lands, analyses 118 



Great Britain, treatise 516 



Hungary, protection 820 



lower Friuli, analyses 916 



Maryland, diver;ity 715 



Mauritius, studies 314 



Mexico, analyses 314 



classification 119 



Morocco, analyses 517 



Nebraska 15 



New Ilampshire, humus in, N.H 215 



South Wales, analyses 916 



North Canada, descriptions 715 



Papua, analyses... 618 



Pennsylvania, studies 216 



Peru, analyses 732 



Poggiomarino, studies 1114 



Portugal , analyses 618 



Queensland, analyses 716 



6830—09 7 



Page. 



Soils, of Khodesia, analyses 314 



fertilizer requirements 314 



1 i ine an<l phosphate in 819 



Kio N'erde, studies 118 



Russia, al)sorptive capacity 916 



analyses 317 



San Joaquin Valley 813 



Saskatchewan, studies 16 



Sfax region, Africa, U.S.D.A 43 



south-central Oregon 812 



Syria 119 



Texas, studies 1022 



the Amur region, Russia 314 



Campine, analyses 720 



Great Plains, studies 715 



Malay States, analyses 1 19 



Muganj steppe, capillarity 517 



Transvaal, analyses 216,716,91ti 



United States, classification, 



U.S.D.A 015 



Vermont, humus in, Vt 215 



Victoria, analyses 1115 



Washington, analyses. Wash 117, 118 



western Morocco, origin 118 



Wisconsin, studies 1114 



organic matter in, studies 713 



peaty, use as a fertilizer filler 92(i 



permeability, as affected by salt solu- 

 tions 16 



physical properties t)19,712 



potash re(iuireraents 221 



prairie, analyses 1114 



preparat ion for analysis 1007 



productiveness — 



as affected by various substances. . . 1115 



bacteriological factors 217 



chemical factors 16 



studies 317, 521, 719 



purification of water by 15 



radioactivity 915 



salts of, origin 315 



sandy, improvement 221 



U.S.D.A 394 



saturated. How of water in 619 



solubility of minerals in, bibliography.. 125 



solution of tricalcium phosphate in 524 



studies 692 



in dry-land regions, U.S.D.A . . 437 



swamp, fertilizer requirements 222 



tea, notes 314 



tobacco, of Deli, analyses 818 



the Transvaal, notes 1129 



toxins in 1018 



transmission of diseases by 677 



transported , agricultural value 516 



treatise 1113 



vineyard, selection 909 



washing, prevention, III. 317 



wax acl<l in SOB 



worn out, Improvement, U.S.D.A 31 



Solanln, potato, studies 929 



Solanum com mfr«ont<, culture experiments. .535,745 



notes 637 



fiolrt, composition 745 



culture 745 



maglia, bud nnitatlons 733 



