216 EXPERIMENT STATION RECORD. [Vol.38 



Soil survey of Dawes County, Nebr., R. R. Burn, L. V. Davis, J. M. Snyuer, 

 F. A. Hayes, and T. E. Kokjer {U. S. Dept. Agr., Adv. Sheets Field Oper. Bur. 

 Soils, 1915, pp. J,l, jig. 1, map i).— This survey, made in cooperation with the 

 University of Nebraslca, deals with the soils of an area of 897,280 acres in 

 northwestern Nebraska, the topography of which varies from flat in the allu- 

 vial tablelands to very steeply rolling in the Pine Ridge areas. Drainage is 

 said to be generally well established. 



The soils of the county are of residual and alluvial or colluvial origin. In- 

 cluding rough broken land and bad lands, 22 soil types of 8 series are mapped, 

 of which Pierre clay and Rosebud very fine sandy loam cover 20.1 and 19.5 per 

 cent of the area, respectively. 



Soil survey of Cortland County, N. Y,, E. T. Maxon and G. L. Fuller 

 {U. S. Dept. Agr., Adv. Sheets Field Oper. Bur. Soils, 1916, pp. 28, fig. 1, map 

 j)^ — This survey, made in cooperation with the New York State College of 

 Agriculture, deals with the soils of an area of 321,920 acres in central New 

 York situated in the Allegheny Plateau with an elevation ranging from ap- 

 proximately 1,000 to 2,000 ft. above sea level. The topography varies from 

 nearly level in the valleys to rolling and hilly in the uplands, with good 

 drainage. 



The soils of the county have been derived from glacial debris composed 

 largely of local sandstone and shale material. Seventeen soil types of nine 

 series are mapped in addition to meadow and muck. Lordstown silt loam, 

 Lordstown stony silt loam, and Volusia silt loam occupy 31.7, 28.4, and 13.4 

 per cent of the area, respectively. 



Soil survey of Columbus County, N. C, R. B. Hardison, R. T. A. Buuke, 

 L. L. Brinkley, and R. 0. Jueney (C7. /S. Dei)t. Agr., Adv. Sheets Field Oper. 

 Bur. Soils, 1915, pp. 1/2, fig. 1, map 1). — This survey, made in cooperation with 

 the North Carolina Department of Agriculture, deals with the soils of an -ea 

 of 582,400 acres in the southern corner of North Carolina, lying in the flat 

 seaward part of the Coastal Plain province. The topography or the county 

 varies from large, flat, poorly drained areas in the southeast to gently rolling 

 and better drained sections to the north. 



The soils of the county are comiiosed of marine sediments, together with ex- 

 tensive areas of cumulose deposits. Twenty-three soil types of 14 series have 

 been mapped besides fairly large areas of peaty muck, muck, and swamp. 

 Norfolk fine sandy loam and Coxville fine sandy loam occupy 82.2 and 11.9 

 per cent of the total ai'ea of the county, respectively. 



Soil survey of Hertford County, N. C, E. S. Vanatta and F. N. McDowell 

 {U. S. Dept. Agr., Adv. Sheets Field Oper. Bur. Soils, 1916, pp. 35, fig. 1, map 

 1). — This survey, made in cooperation with the North Carolina Department of 

 Agriculture, deals with the soils of an area of 220,800 acres in northeastern 

 North Carolina. The county lies wholly within the Coastal Plain region, with 

 a topography varying from level or gently undulating to gently rolling. The 

 drainage is poor in the level to gently undulating areas and good in the 

 more rolling areas. 



The soils of the county are derived from unconsolidated sands and clays of 

 sedimentary origin. Eight soil types of five series are mapped in addition to 

 swamp. Norfolk fine sandy loam, Coxville very fine sandy loam, Coxville 

 fine sandy loam, and swamp occupy 34.1, 25.5, 17.5, and 15.2 per cent of the total 

 area of the county, respectively. 



Soil survey of Portage County, Wis., W. J. Getb, L. R. Schoenmann, and 

 L. P. Hanson (U. S. Dept. Agr., Adv. Sheets Field Oper. Bur. Soils, 1915, pp. 52, 

 fig. 1, map i).— This survey, made in cooperation with the State of Wisconsin, 

 deals with the soils of an area of 519,680 acres in central Wisconsin, being a 



