SOILS AND FERTILIZERS 5 



CHEMISTRY of soil as related to crop production. 1003. 71 pages. Paper, lOc. 



A 26.3 : 22 



CHEROKEE COUNTY, KANS., Soil survey. 42 pages, 1 illus. map. [From 

 Field Operations, 1912.] Paper, 15c. A26.5 a :C424 2 



CHESTER COUNTY, S. C., Soil survey. 41 pages, 1 illus. map. [From Field 

 Operations, 1012.] Paper, 15c. A26.5 a :C426 3 



CHRISTIAN COUNTY, KY., Soil survey. 34 pages, 1 illus. map. [From Field 

 Operations, 1912.] Paper, 15c. A26.5 a :C462 



CITY STREET SWEEPINGS as fertilizer. 1912. 8 pages, illus. Paper, 5c. 



A 26.4 : 66 



CLARKE COUNTY, ALA., Soil survey. 31 pages, illus. map. [From Field 

 Operations, 1912.] Paper, 15c. A 26.5" : C 558 



COLOR of soils. 1911. 29 pages, illus. Paper, 5c. A 26.3 : 79 



CONECUH COUNTY, ALA., Soil survey. 48 pages, 1 illus. map. [From Field 

 Operations, 1912.] Paper, 15c. A 26.5 a : C 756 



CONSERVATION. 



Conservation of soil, address by President Taft before National Conserva- 

 tion Congress, Kansas City, Mo., Sept. 25. 1911. 8 pages. Paper, 5c. 



A 1.4: 38 

 Soil conservation. 1910. 15 pages. Paper, 5c. A 1.9 : 406 



CORN. See, in this list, heading Fertilizers. 

 COTTON. See, in this list, heading Fertilizers. 



COVINGTON COUNTY, ALA., Soil survey. 37 pages, illus. map. [From Field 

 Operations, 1912.] Paper, 15c. A 26.5 a : C 838 2 



CREATININE. Beneficial organic constituent of soils, creatinine: Introduction, 

 Importance of beneficial soil constituents; 1, Isolation of creatinine from 

 soils; 2, Origin of creatinine in soils; 3, Effects of creatinine on growth 

 and absorption. 1911. 44 pages, illus. Paper, lOc. A 26.3 : 83 



CULTIVATION. Reasons for cultivating the soil. (In Agriculture Yearbook 

 1895, pages 123 to 130.) Cloth, 55c. A 1.10 : 895 



DIHYDROXYSTEARIC ACID. Examination of soils for organic constituents, 

 especially dihydroxystearic acid. 1911. 33 pages, illus. Paper, lOc. 



A 26.3 : 80 



DOUGHERTY COUNTY, GA., Soil survey. 63 pages-, ] illus. map. [From Field 

 Operations, 1912.] Paper, 15c. A 26.5 a : D 744 



EAST FELICIANA PARISH, LA., Soil survey. 41 pages, 1 illus. map. [From 

 Field Operations, 1912.] Paper, 15c. A 26.5 a : Ea7f 



EGYPT. See, in this list, heading Alkali lands. 



EROSION. 



Economic waste from soil erosion. Pages 207 to 220, illus. [From Agricul- 

 ture Yearbook, 1913.] Paper, 5c. A 1.10* : 624 

 Soil erosion. 1911. 60 pages, illus. Paper, 35c. A 26.3 : 71 

 Working erosion model for schools. 1912. 11 pages, illus. Paper, 5c. 



A 10.4 : 117 



EXHAUSTION and abandonment of soils, testimony of Milton Whitney, chief 

 of Division of Soils, before Industrial Commission. 1901. 48 pages. 

 Paper, 5c. A 1.8 : 70 



FERMENTS. See, in thi* list, heading Bacteria. 



FERTILITY. 



Fertility of soils as affected by manures. 1908. 59 pages, illus. Paper. lOc. 



A 26.3 : 48 

 Investigations in soil fertility. 1904. 48 pages-, illus. Paper. lOc. 



A 26.3 : 23 



NOTE. In ordering publications from this List use the words of the title as far as the 

 first period, and all the composite number which follows the price. 



