SUBJECT INDEX 



537 



Soil— Contmaed. 



survey in Pennsylvania — continued. 



Erie Co., (29) 16. 



Lancaster Co., (35) G26. 



south-central area, (29) 16. 



Washington Co., (29) 16. 

 survey in Puget Sound Basin, (29) 17. 

 survey in South Africa, need of, (28) 423. 

 survey in South Carolina — 



Bamberg Co., (32) 28. 



Berkeley Co., (40) 119. 



Chesterfield Co., (34) 418. 



Clarendon Co., (29) 16. 



Dorchester Co., (36) 620. 



Florence Co., (35) 118. 



Hampton Co., (36) 813. 



Orangeburg Co., (32) 616. 



Richland Co., (39) 422. 



Union Co., (32) 214. 

 survey in southeast England, (26) 119. 

 survey in Tennessee — 



Jackson Co., (34) 213. 



Shelby Co., (40) 814. 

 survey in Texas — 



Bell Co., (40) 120. 



Brazos Co., (35) 626. 



Eastland Co., (39) 212. 



Ellis Co., (29) 16. 



Grayson Co., (36) 620. 



Gulf Coast area, (29) 16. 



Jefferson Co., (34) 213. 



Lee Co., (36) 620. 



McLennan Co., (36) 620. 



Panhandle region, (29) 16. 



San Saba Co., (38) 422. 



Smith Co., (36) 621. 



south-central area, (34) 213. 



Taylor Co., (39) 212. 



Tyler Co., (36) 620. 



Washington Co., (32) 617. 



survey in- 

 United States, (26) 718; (28) 421, 537; (29) 

 16; (31) 512; (34) 321; (36) 210. 



Utah, Cache Valley area, (34) 214. 



Vermont, Windsor Co., (40) 814. 

 survey in Virginia- 

 Fairfax and Alexandria Counties, (37) 514. 



Frederick Co., (35) 510. 



Henrico Co., (32) 214. 

 survey in Washington- 

 Franklin Co., (36) 621. 



Palouse Irrigation Project, (36) 722. 



Stevens Co., (34) 214. 

 survey in West Virginia — 



Boone Co., (32) 617. 



Clarksburg area, (28) 216; (29) 17. 



Jefferson, Berkeley, and Morgan Counties, 

 (39) 212. 



Lewis and Gilmer Counties, (37) 22. 



Logan and Mingo Counties, (34) 124. 



McDowell Co., (3.S) 118. 



Point Pleasant area, (29) 17. 



Raleigh Co., (35) 18. 



Wyoming Co., (35) 118. 

 survey in Wisconsin, (26) 221, 812; (28) 815. 

 survey in Wisconsin — 



Bayfield area, (29) 17; (34) 617. 



Buffalo Co., (34) 215. 



Columbia Co., (36) 723. 



Dane Co., (34) 418. 



Door Co., (40) 120. 



Fond du Lac Co., (35) 19. 



Iowa Co., (29) 17; (34) 617. 



JeSerson Co., (36) 723. 



Juneau Co., (35) 19. 



Kewaunee Co., (35) 19. 



La Crosse Co., (35) 19. 



Marinette Co., (28) 620. 



Milwaukee Co., (40) 120. 



north-central area, (36) 20, 723; (38) 324. 



northeastern area, (34) 617; (36) 723. 



Portage Co., (38) 216. 



Waukesha Co., (29) 17; (34) 617. 



Waushara Co., (34) 617. 



Wood Co., (38) 217. 



surveys — 



development and economic value, (34) 513. 

 discussion, (26) 118, 519. 

 papers on, (26) 434; (32) 121. 

 probable error of sampling in, (34) 513. 



Soil— Continued. 



suspensions, layer formation in, (39) 420; (40) 



620. 

 tank experiments, (31) 723; (33) 24; (35) 812. 

 temperature, (27) 214; (36) 617. 

 temperature as affected by — 



cultivation, (33) 510. 



cultural methods, (34) 217. 



forest cover, (31) 415. 



plant covering, (30) 122. 



sand, (27) 516. 

 temperature as factor in agriculture, (34) 419. 

 temperature, effect on— 



availability of fertihzers, (28) 420. 



availability of plant nutrients, (28) 537. 



crop yields, (30) 135. 



seedling corn, (38) 530. 

 temperature- 

 factor, evaluation, (40) 130, 426. 



factors afiecting, (26) 29; (34) 514. 



notes, (28) 516. 



relation to air temperature, (34) 15; (36) 208. 



relation to climate, (34) 319. 



relation to plant growth, (29) 19. 



rise on moistening, (39) 617. 



studies, (28) 116, 118; (29) 618; (34) 818; (35) 

 620. 



surface, (28) 622. 



surface, measurement, (37) 520. 

 texture, relation to water level, (33) 806. 

 toxins and nitrification, studies, (38) 322. 

 toxins, formation, (31) 620; (34) 218. 

 types, descriptions, (26) 221. 

 variation, relation to crop production, (29) 416. 

 water— see also Soil moisture. 



changes in level of, (35) 813. 



composition as affected by cultivation and 

 manures, (29) 416. 



movements of, (26) 28. 

 zeolites, properties of, (30) 23. 

 zones, vertical, in mountainous Russia, (33) 418 

 Soiling crops- 

 culture on moorland, (38) 132. 

 for Iowa, (31) 265. 

 for summer feeding, (29) 473. 

 in Nebraska, (40) 521. 

 notes, (37) 96, 895. 

 tests, (37) 733. 



V. silage for dairy cows, (30) 874. 

 V. summer silage, (26) 574. 

 Soiling, summer, suggestions for, (26) 72. 

 Soils- 

 absorbent power, cause, (27) 619. 

 absorption— 



and coagiilation in, (35) 813; (40) 212. 



and solution phenomena in, (32) 421. 



in, (36) 622. 



of ammonia by, (36) 425, 816. 

 phosphates by, (26) 122. 

 phosphoric acid in, (27) 216; (33) 516. 

 ultraviolet and infra-red rays by, (34) 817. 

 absorptive- 

 power, (31) 514. 



power for ammonia, (36) 219. 



power for fertUizers, (33) 122. 



power for water, (37) 18. 



properties, (27) 515. 

 acid— see also Soil acidity. 



aluminum in, (39) 114. 



and steam digestion, (28) 121. 



as affected by fertilizers, (35) 22. 



bacterial activity, (39) 325. 



bacterial content, (40) 620. 



growth of legumes on, (36) 514. 



humus, nitrification in, (30) 424. 



in Assam, (32) 812. 



liming, (36) 514. 



manganese in, (39) 627; (40) 728. 



manganese in, action, (30) 823. 



nitrate formation in, (36) 22. 



nitrification in, (32) 121; (35) 514; (40) 620 



of Hawaii, (36) 813. 



Japan, colloidal properties, (32) 318; (33) 



215. 

 tropical countries, (31) 419. 



or nonbasic, nitrification in, (30) 517. 



studies, (36) 21. 



utilization, (30) 23. 

 Actinomycetes in, (29) 222; (37) 517. 

 adaptation to wheat or rye, (34) 813. 

 added boron In. (39) 429. 



