SUBJECT INDEX 



543: 



Soils — Continued. 



of Olifants River irrigation scheme, (31) 418. 

 Oregon, (27) 719. 

 Oregon, studies, (32) 420. 

 Ozark upland region, (38) 217. 

 Palatinate, absorptive capacity, (26) 319. 

 pampas of Argentina, (.30) 886. 

 Paraguay, analyses, (34) 15, 323. 

 Pennsylvania, (32) 610; (3.3) 811. 

 Peru, phosphoric acid content, (35) 118. 

 Perugia, Italy, (34) 810. 

 Philippines, analyses, (26) 318. 

 Philippines, nitrification in, (34) 718. 

 Poland, notes, (26) 318. 

 polar and subpolar regions, structure, (31) 



23. 

 Porto Rico, south coast, (33) 121. 

 Porto Rico, studies, (29) 17, 622, 815. 

 Posen, composition, (26) 423. 

 prairie regions of Alabama and Mississippi, 



(27) 33. 

 Quebec, analyses, (37) 22. 

 Quebec and Ontario, analyses, (29) 233. 

 Queensland, analyses, (27) 217; (28) 516, 620; 



(30) 421; (33) 22; (35) 20; (40) 314, 415. 

 rice localities, microfauna of, (33) 23. 

 rocky deserts of Turkestan, (30) 213. 

 rubber producing reg.ons, (33) 512. 

 Russia, classification '(28) 423. 



Russia, nitrogen-fixi, g bacteria in, (38) 428. 

 Rutherglen Experinment Farm, analyses 



(31) 513. 



Sabak district, Malay States, (36) 322. 



Sahel, analyses, (31) 814. 



St. Croix, analyses, (31) 133. 



San Luis Province, Argentina, (34) 512. 



San Luis Valley, Colorado, (27) 18. 



Sao Paulo, BrazD, analyses, (36) 210. 



Savoy, (35) 346. 



Scania, Sweden, nitrogen content, (32) 123. 



semiarid region, management, (32) 215. 



Shenandoah River terrace, (27) 18. 



Sierra Leone, (34) 512. 



Sierra Nevada foothills, (33) 286, 618. 



small areas, studies, (26) 516. 



South Africa, analyses, (29) 514; (31) 119; 



(38) 411. 

 South Austraha, (35) 119. 

 South Australia, analyses, (31) 720. 

 South Carolina, lime for, (28) 726. 

 south-central Texas, (38) 324. 

 South Dakota, notes, (29) 19. 

 South Russia, humus content, (32) 718. 

 south Texas, analvi^es, (30) 420. 

 southeast England, analyses, (26) 119. 

 southeastern Manitoba, (31) 839. 

 southern Italian Somaliland, (29) 416. 

 southern Italy, lateritic nature, (.33) 813. 

 southern New Jersey and their uses, (40) 19. 

 southern New York highland region, (33) 



511. 

 southern peninsula of Michigan, (28) 422. 

 southern Rhodesia, (37) 212. 

 Sulphur Spring Valley, (29) 725. 

 Sussex area, N. J., composition, (30) 622. 

 Sutter Basin, Calif., (29) 125. 

 Sweden, classification, (28) 620. 

 Tamar River Valley, (30) 214. 

 Tasmania, analyses, (28) 621. 

 Tennessee, (34) 323; (35) 795. 

 Tennessee — 



bibliography, (26) 812. 



lime for, (29) 25; (39) 120. 



nitrogen economy, (38) 212. 



Robertson Co., (28) 516. 

 Texas, (33) 417, 788. 

 Texas, fungus fiora, (36) 434. 

 Texas, investigations, (28) 197. 

 Texas Panhandle, (34) 124. 

 Transvaal, analyses, (27) 639; (33) 813. 

 Tripoli, (27) 618. 

 Tripoli, composition, (28) 620. 

 Tripoli, solutions of, (34) 323. 

 tropical South America, (30) 622. 

 Tuiarosa basin, New Mexico, (32) 785. 

 Tunis, (31) 492. 



Turkestan, classification, (26) 621. 

 Ugogo, German East Africa, (28) 320. 

 UmatUla project, (38) 422. 



Soils— C ontinued . 

 of United States — 



classification, (30) 19. 

 studies, (28) 117. 

 types, (27) 512. 

 Uruguay, analyses, (36) 114. 

 Uruguay, analy.sesand classification, (30) 623. 

 Utah, studies, (29) 18. 

 Vevey, Switzerland, (37) 212. 

 Virginia, (30) 319. 



Virginia, phosphate requirement, (39) 22. 

 Virginia, studies, (28) 620. 

 west Tennessee, reclamation, (30) 19. 

 West Virginia, analyses, (36) 722; (40) 420. 

 western Australia, fertility, (29) 315. 

 western New York, (33) 121. 

 western Washington, (34) 418. 

 wine district of Arad-Hegyalja, (30) 213. 

 Yorkshire, lime requirements, (40) 128. 

 Yser valley, inundation, (33) 512. 

 Orangeburg sandy loam, (26) 120, 222; (27) 512. 

 orchard, dynamiting experiments, (33) 239. 

 orchard, nitrates in, (36) 724. 

 organic matter in, see also Organic matter, 

 organic matter in, (28) 418, 519; (29) 817; (SO)' 



516; (33) 421; (36) 512, 815; (37) 20, 121, 216. 

 organic matter in — 



decomposition, (26) 610; (38) 117; (40) 213. 

 determination, (39) 11, 312. 

 maintenance, (37) 215. 

 organic nitrogen in, (31) 11. 

 organic phosphorus in, (36) 212. 

 osmosis in, (26) 217; (29) 124; (30) 23; (31) 720; 



(33) 420; (35) 16. 

 osmotic pressure, effect on bacterial activity, 



(40) 722. 

 oxidation of sulphur in, (30) 222. 

 oxidizing power, (35) 624; (37) 811. 

 packed and unpacked, moisture content, (27) 



320. 

 packing experiments, (29) 223. 

 pakihi, of New Zealand, (31) 419. 

 pasture, English work on, (28) 216. 

 pasture, nitrification in, (30) 399; (31) 516. 

 peat, see Peat and Moor, 

 penetration by fertilizers, (27) 420. 

 penetration by frost, (26) 619. 

 Penn loam, (27) 17. 

 pervious, loss of nitrates from, (37) 23. 

 phosphoric acid in— 

 availability, (26) 321. 

 concentration, (27) 418. 

 fixation, (37) 423. 

 notes, (27) 500; (38) 117. 

 phosphorus requirements, (29) 417. 

 physical- 

 character as affected by calcium oxid, (40) 



622. 

 constants of, (26) 29. 

 processes in relation to temperature, (34) 



216. 

 properties, (27) 120; (31) 215. 

 properties, importance in soU Judging, (31) 



514. 

 properties, relation to crop yields, (33) 815. 

 properties, studies, (26) 219; (33) 420. 

 physico-chemical studies, (30) 215; (35) 21, 624. 

 physics of, (28) 416. 

 "physiological depth" of, (31) 26. 

 Piedmont, of North Carolina, (33) 417. 

 pineapple, analyses, (29) 210. 

 pine-covered sand dune, investigations, (27) 217. 

 pinery and orchard, of Cape of Good Hope, (27) 



217. 

 plant food for, (33) 516. 

 plant food production in, (30) 624. 

 plasticity, (32) 617. 

 plasticity and firmness, (28) 320. 

 plowing and cultivation, (29) 31. 

 podzol— 



analyses and absorptive power, (33) 814. 

 classification, (28) 515. 

 composition, (30) 214. 

 formation, (33) 814. 

 movement of iron in, (30) 216. 

 of Middle Norland, Sweden, (35) 720. 

 polder, of Netherlands, salt content, (27) 615. 

 polygon, of Iceland, (30) 515. 

 porosity, (31) 486. 

 porous, effect on fertilizers, (28) 423. 



