810 



EXPERIMENT STATION RECORD. 



Soil survey of Union County, North Carolina, B. B. Debeick and S. O. 

 Pebkins (U. S. Dept. Agr., Advance Sheets Field Operations Bur. Soils, 1914, 

 pp. 38, fig. 1, map 1). — This survey, made in cooperation witti tlie North Carolina 

 Department of Agriculture and issued March 4, 1916, deals %A'ith the soils of an 

 area of 403,200 acres in southern North Carolina. 



" The general surface features of Union County consist of broad, gently roll- 

 ing interstream areas, wliich become more rolling, broken, and hilly as the 

 larger streams are approached. The central, eastern, and northern portions of 

 the county slope to the northeast and are well drained by the Rocky River and 

 its tributaries, while the remainder inclines toward the southwest, being 

 drained by tributaries of the Catawba River." The county lies wholly within 

 the Piedmont Plateau province and the soils are of residual origin. Sixteen 

 soil types of 8 series are mapped, of which the Alamance silt loam and gravelly 

 silt loam cover 24.7 and 10.9 per cent of the area, respectively, and the George- 

 ville gravelly silt loam and silt loam 1.^..5 and 13.9 per cent, re.spectivoly. 



Soil survey of Portage County, Ohio, C. N. Mooney, H. G. Lewis, A. F. 

 Head, and C. W. Shiffler {U. S. Dept. Agr., Advance Sltcets Field OpcrationJi 

 Bur. Soils, 191Ii, pp. J/Jf, fig. 1, map 1). — This survey, made in cooperation with 

 the Ohio Agricultural Experiment Station and issued March 4, 1916, deals with 

 the soils of an area of 333,440 acres in northeastern Ohio, the topography of 

 which ranges from flat or slightly undulating to rolling and hilly. The soils 

 are of glacial and alluvial origin. Including muck, 18 soil types of 10 series 

 are mappetl, of which the Volusia clay loam, loam, and silty clay loam cover 

 27.4, 2.5.1, and 10.1 per cent of the area, respectively, and the Wooster loam 

 18.1 per cent. 



Analyses of typical soils, J. W. Ames (.Vo. Bnl. Ohio Sta., 1 (1916), No. 3, 

 pp. 73-76). — Results selected from a number of analyses of representative soils 

 from various localities in Ohio are reported in the following table for the pur- 

 pose of indicating the variations in amounts of fertility constituents that may 

 exist in different classes of soil : 



Fertility consfifue'uts in different classes nf soil, per acre. 



Typo of soil. 



Sand 



Sandy loam 



Do 



Silt loam 



Do 



Clay loam 



Do 



Clay 



Do 



Black clay loam. 



Do 



Black clay 



Do 



Peat 



Depth. 



Inches. 

 0- 7 

 0- 7 

 7-15 

 0- 7 

 7-1.5 

 0- 7 

 7-15 

 0- 7 

 7-15 

 0- 7 

 7-15 

 0- 7 

 7-15 



Nitrogen, 



Pounds. 

 1,000 

 2,390 



590 

 2,096 

 1,054 

 2,920 

 1,152 

 2,170 



910 

 4,900 

 2,100 

 7,410 

 .3,sno 

 27, SCO 



Phos- 

 phorus. 



rouMf. 



892 



7S2 



2S2 



870 



60S 



766 



3S.S 



690 



42S 



1, 456 



788 



1,958 



1,446 



1,710 



Magne- 

 sium. 



Pounds. 

 4,050 

 5,128 

 5,526 

 5,6S4 

 7,750 

 6,271 

 9.H00 

 12,000 

 15,000 

 14,1.';4 

 17,860 

 14,348 

 15,772 

 2,420 



Geo-agronomic study of the farm lands of the Royal Institute of Ex- 

 perimental Agriculture in Perugia, B. Mabcvkelli {Slaz. Sper. Agr. Ttal., J^8 

 (1915), No. 4, pp. 233-271, pis. 4). — Thi.s is a detailed description of the topog- 

 raphy, geolo.cy. origin, and characteristics of the soils and of the meteorological 

 and agricultural conditions of the farm lands of the institute and includes 

 mechanical and chemical analyses of the soils. 



