514 EXPERIMENT STATION RECOED. [Vol.37 



SOIL&— FERTIUZEKS. 



Edgar County soils, C. G. Hopkins, J. G. Mosiek, E. Van Alstine, and F. W. 

 Gabkett (Illinois Sta. Soil Rpt. 15 (1917), pp. 56, pis. 2, figs. 8).— Edgar County 

 is located in the central eastern border of Illinois and lies principally in the 

 early Wisconsin glaeiation, with the southern part in the lower Illinoisan 

 glaciation. The topography varies from flat to slightly rolling. The south- 

 eastern part is quite hilly. 



The soils of the county are classed as upland prairie soils rich in organic 

 matter, upland timber soils, terrace soils, and swamp and bottom lands. The 

 brown silt loam upland prairie soil covers .52.37 per cent of the area, and tlie 

 yellow-gray silt loam upland timber soils, 19.17 per cent. 



Soil survey of Clinton County, Iowa, H. W. Hawker and F. B. Howe (V. S. 

 Dept. Agr., Adv. Sheets Field Oper., Bur Soils, 1915, pp. 6^, pis S, fig. 1, mapl).— 

 This survey, made in cooperation with th"* Iowa Experiment Station, deals with 

 the soils of an area of 442,240 acres on the central eastern border of Iowa. 

 " The county comprises three physiographic divisions, a plain of Kansan drift 

 covered by Mississippi loess in the northern and western parts of the county, a 

 plain of modified lowan drift in the southern part, and an alluvial plain adjoin- 

 ing the Mississippi River and its tributaries in the county. . . . 



"The soils of the county are deri\ed mainly from loess, glacial drift, and 

 alluval deposits." Including river wash and nmck. 24 soil types of 13 series are 

 mapped, of which the Memphis, Muscatine, and Carrington silt loams cover 

 29.2. 22.2, and 17.1 per cent of the area, respectiv^y. 



The soil resources of Maryland. A. G. McCall (Rpt. Md. Agr. Soc, 1 {1916), 

 pp. 211-22-'i). — This is an address deliveretl to the Maryland Agricultural So- 

 ciety in which some of the problems concerning the maintenance of the fertility 

 of Maryland soils were discussed on the basis of experience at the Maryland 

 Experiment Station. 



Soil survey of Schoharie County. N. Y., E. T. Maxon and G. L. Fulijib 

 (U. S. Dept. Agr., Adv. Sheets Field Oper., Bur. Soils. 1915, pp. S4. pis. 4. fig. 1, 

 map 1). — This survey, made in cooperation with the New York State College of 

 Agriculture, deals with the soils of an area of 396.800 acres in eastern New 

 York. "The topogi'aphic features are the rolling uplands In the northern part 

 of the county and the rugged mountainous section in the southern part." 

 ... " Practically the entire county, with the exception of the extreme north- 

 eastern part, is adequately drained." 



The soils are grouped as ice laid, stream terrace, lake laid, and alluvial 

 soils. Including muck, rough stony land, rock outcrop, and meadow, 22 soil 

 types of 14 series are mapped, of which the Lordstown stony silt loam and the 

 Volusia silt loam cover 46.4 and 10 per cent of the area, respectively. 



Geology of southern Ohio, W. Stout (Geol. Survey Ohio, 4. ser., Bui. 20 

 {1916), pp. 723, pis. S5). — This report. Including Jackson and Lawrence Counties 

 and parts of Pike, Scioto, and Gallia, contains information which should be 

 of value in a study of the soils of Ohio. 



Soil survey of Fairfax and Alexandria Counties. Va.. W. T. Carter, jr., 

 and C. K. Yingi.ing. jr. {V. S. Dept. Agr., Adv. Sheets Field Oper., Bur. S(jils, 

 1915, pp. 4S, pl*. 4. fig- 1. map 1). — This .^survey deals with the soils of an area 

 of 287.360 acres in extreme northeastern Virginia, the topography of which 

 ranges from gently undulating to very rolling and hilly, being predominantly 

 gently rolling. Drainage is said to be good throughout. The western two- 

 thirds of the area lies within the Piedmont plateau province and the eastern 

 third within the Coastal Plain province. 



