DIVISION OF PUBLICATIONS. 691 



Publications issued during the year ended June SO, 1910, etc. — Continued. 



BUREAU OF SOILS. 



New PrBLiCATiONS. 

 Bulletins: Copies. 



No. 57. A Study of Crop Yields and Soil Composition in Relation to 



Soil Productivity. Milton Whitney. 127 pp. 20 cts. Oct. 8 1, 000 



No. 58. The Composition of Commercial Fertilizers. Milton Whit- 

 ney. 39 pp. 10 cts. May 11 2, 500 



No. 59. Heat Transference in Soils. Harrison E. Patten. 54 pp. 



10 cts. Sept. 28 3,000 



No. 60. A Preliminary Report on the Volusia Soils, Their Problems 



and Management. 22 pp. 20 cts. Sept. 30 3,000 



No. 62. Fertilizers for Cotton Soils. Milton Whitney. 24 pp. 5 cts. 



Sept. 29, 3,000; Dec. 29, 500 3,500 



No. 63. Reference List of the Electric Fixation of Atmospheric Ni- 

 trogen and the Use of Calcium Cyanamid and Calcium Nitrate on 

 Soils. Compiled by Stephen Conrad Stuntz. 89 pp. 10 cts. 

 Jan. 27 2. 000 



No. 64. Fertilizers for Corn Soils. Milton Whitney. 31 pp. 5 cts. 



May 3 2, 500 



No. 65. Fertilizers for Potato Soils. Milton Whitney. 19 pp. 5 



cts. May 9 2,500 



No. 66. Fertilizers for Wheat Soils. Milton Whitney. 48 pp. 



10 cts. May 28 2,000 



No. 67. Fertilizers on Soils Used for Oats, Hay, and Miscellaneous 



Crops. :Miltou Whitney. 73 pp. 10 cts. June 18 2,500 



No. 69. A Review of the Phosphate Fields of Idaho, Utah, and Wyo- 

 ming. W. H. Waggaman. 48 pp. 10 cts. June 24 2,500 



Circulars: 



No. 20. Soils of Pender County, N. C. A Preliminarj^ Report. 

 16 pp. Jan. 14 2.500 



No. 21. Soils in the Vicinity of Brunswicli, Ga. A Preliminary Re- 

 port. 21pp. Feb. 19 2,500 



Report: 



Annual Report of the Chief of the Bureau of Soils, 1909. Milton 



Whitney. (From An. Rpts. of Dept, 1909.) 20 pp. Dec. 8 200 



Yearbook Extract: 



No. 516. Agriculture in the Coal Regions of Southwestern Penn- 

 sylvania. H. J. Wilder. (From Ybk., 1909.) 12 pp. June 17__ 1,000 



Earlier Publications Reprinted. 

 Bulletin: 



No. 55. Soils of the United States. Kasinl upon the Work of the 

 Bureau of Soils, to Jan. 1, 1908. Milton Whitney. 43 pp. 45 



cts. Aug. 23 1,000 



Yearbook Extract: 



No. 415. The Use of Soil Surveys. J. A. Bonsteel. (From Ybk., 



1906.) 8 pp. Mar. 31 1,000 



Farmers' liuUetins: 



No, 00. 2d Revision. :Metho(ls of Curing Tobacco. Milton Whit- 

 ney. 23 pp. Oct. 15. 10.000: June 11, 10,000 20,000 



No. 82. The Culture of Tobacco. O. C. Buttorweck. 24 pp. Fob 1. 10,000 



No. 83. Tobacco Soils. Milton AVhitney. 23 pp. Jan. 13, 5,000; 



May 13, 10,000 15,000 



No. 8S. Alkali Lands. .Milton Whitney and T. H. Means. 24 pp. 



Nov. 11, 5.000: Jan. 29, 5,000; Jmie 2. 5.000 15,000 



No. 257. Soil Fertility. Milton Whitney. 39 pp. Dec. 28. 10.000; 



Mar. 31. 15,(MM); June 4, 1."..000 40,000 



No. 2(>»!. M.inagenioiit of .*>oils to Conserve Moisture, with Special 

 Reference to Senii.irid Conditions. (Jeorgo II. Failyer. .32 pp. 

 Oct. 6, 10,000; Feb. 9, 10,000; Apr. 30, 10,000 30,000 



