, SOILS — FERTILIZERS. 513 



types constitute the best soils for tlie ijroductiou of tlie staple crops to be foimd 

 withlu the northern portion of the Atlantic Coastal Plain." 



Soil survey of Habersham County, Georgia, D. D. Long and E. C. Hall 

 (U. 8. Dept. Agr., Advance Sheets Field Operations of the Bureau of Soils, 1913, 

 pp. 48, fig. 1, tnap l). — This survey, made in cooi)eration with the Georgia State 

 College of Agriculture, was issued December 31, 1914. It deals with an area 

 of 181,120 acres in northeastern Georgia, which lies partly in the Blue Ridge 

 Mountains and partly in the Piedmont Plateau, the topography ranging from 

 rolling to mountainous. The greater part of the county is drained by the 

 Chattahoochee River system. The soils are residual and alluvial. Twenty 

 types of seven series and two miscellaneous tyi^es are mapped. The most im- 

 portant soil series in the county is the Cecil series, including six soil types 

 of which the clay loam is the predominating type in the Piedmont section. 

 "The agricultural progress of this county is dependent upon the maintenance 

 of the productiveness of the soils by a greater diversification of crops, the use 

 of crop rotations, the more extensive use of cowpeas and other legumes, the 

 incorporation of organic matter with the soil, the keeping of more live stock 

 upon the farms, the exercise of care in seed selection, and the proper mixing 

 and use of fertilizers." 



Soil survey of Jones County, Georgia, D. D. Long, G. A. Ckabb, et al. 

 (f7. S. Dept. Agr., Advatvce Sheets Field Operations of the Bureau of Soils, 

 1913, pp. 44, fig. 1, map 1). — ^This survey, made in cooperation with the Georgia 

 State College of Agriculture, was issued December 31, 1914. It deals with an 

 area of 256,640 acres in central Georgia, approximately 80 per cent of which 

 lies in the Piedmont Plateau and the remainder in the Coastal Plain. The 

 topography varies from level to undulating divides to hilly and broken areas 

 and the drainage is i^erformed by the Ocmulgee and Oconee river basins. The 

 soils range from incoherent coarse sands to stiff heavy clays. Twenty- 

 three types and three phases of thirteen series are mapped, of which nine types 

 and the three phases are found in the Piedmont section and are said to repre- 

 sent the best general farm soils in the county. The Cecil soils are the most 

 productive, with the Greenville and Orangeburg soils ranking next. It is 

 stated that the ox-ganic matter content of practically all the soils has been 

 depleted by the continuous growing of clean culture crops and. the limited 

 appreciation of the value of systematic crop rotation and of the growing of 

 leguminous crops. 



Soil survey of Talbot County, Georgia, R. A. Winston and H. W. Hawkek 

 {U. S. Dept. Agr., Advanee Sheets Field Operations of the Bureau of Soils, 

 1913, pp. 40, fig. 1, map 1). — This survej% made in cooperation with the Georgia 

 State College of Agriculture, was issued October 20, 1914. It deals with an 

 area of 247,680 acres in west-central Georgia, the topography of which ranges 

 from gently rolling and undulating to veiy rolling and hilly. All sections of the 

 county are adequately drained. The soils are of residual, sedimentary, and 

 alluvial origin. Twenty-four soil types of eleven series are mapped of which 

 the Cecil clay loam is the most important. It is stated that the soils of the 

 county are generally in need of liming and more thorough cultivation and that 

 terracing is necessary over the more rolling areas. " There is little recognition 

 of the adaptation of soils to crops and no systematic rotation of crops, while 

 the improvement and maintenance of the productiveness of the laud receives 

 but little attention." 



Agriculture of Sulphur Spring Valley, Ariz,, R. H. Foebes {Arizona Sta. 

 Bui. 72 (1913), pp. 213-224).— This is a reprint of a chapter from a bulletin 

 of the U. S. Geological Survey which has been previously noted (E. S. R., 30, 

 p. IS). 



