18 EXPERIMENT STATION RECORD. 



mapped. The soil is stated to be fairly well drained, but the more level por- 

 tions of the type would be benefited by tile underdrainage. 



Circular 57 discusses the Carrington silt loam of which a total of 739,584 

 acres in 7 areas in 5 States has been surveyed and ma»pped. This type is 

 found upon the uplands of northern Indiana, southern Wisconsin and Minne- 

 sota, and in the eastern portion of both North and South Dakota. The drainage 

 of the soil is adequate, as a rule, but in minor depressed areas tile drainage is 

 considered necessary. The soil is well suited to the production of grains and 

 grass, dairying and stock raising being the principal industry. 



Circular 58 gives an account of the Carrington clay loam of which a total 

 of G12,864 acres in G areas in 4 States has been surveyed and mapped. This 

 type is found in southern Wisconsin, north and central Iowa, southern Minne- 

 sota, and eastern North Dakota. The drainage is good over the greater por- 

 tion of the region, only small depressions requiring tile drains. " In the more 

 southern and eastern areas corn, oats, and hay are the chief staple crops. 

 Cabbages are raised as a special crop. Farther north spring wheat, barley, 

 rye, and flax are grown^ while in the most western areas of its occurrence 

 durum wheat is coming to be an important and profitable crop." 



Circular 59 discusses the Marion silt loam of which a total of 694,040 acres 

 in 4 areas in Missouri and Illinois has been surveyed and mapped. This is a 

 prairie soil adapted to small grain farming, winter wheat constituting the most 

 important crop with oats and hay occupying considerable acreage. Drainage is 

 stated to be imperfect in this type of soil which is also low in organic matter 

 and needs lime. 



Circular 60 deals with the Volusia loam of which a total of 554,082 acres 

 in 7 areas in northern Pennsylvania, southern and central New York, and north- 

 eastern Ohio has been surveyed and mapped. It is described as a general 

 farming and dairying soil with an altitude ranging from 600 to 1,500 ft., a 

 rolling to hilly surface fairly well drained except in depressed and level areas, 

 and adapted to the production of grass for hay and pasture. Oats constitute 

 the chief crop and barley and winter wheat are grown to a limited extent. In 

 the lower areas corn is grown for grain and at the high altitudes flint varieties 

 may be grown for silage. Buckwheat is an important catch crop. 



Soils of the Shenandoah River terrace: A revision of certain soils in 

 the Albemarle area, Virg'inia, H. H. Bennett {U. S. Dept. Agr., Bur. Soils 

 Circ. 53, pp. 16, figs. 4). — In revising some of the soils of the Albemarle area, 

 Virginia, particularly the Edgemont stony loam, the author proposes to classify 

 those soils of the lower, smoother division of the original Edgemont stony loam 

 as the Waynesboro and the Holston series ; and those of the mountainous belt 

 of the region, as the Dekalb series. The principal soil types under each series 

 are described. 



Soils in the San Luis Valley, Colo., M. H. Lapham (U. S. Dept. Agr., Bur. 

 Soils Ci/rc. 52, pp. 26, fig. 1). — The results of a reconnoissance survey of the 

 region, including its climatic conditions, soils, and agriculture, are reported. 



The region occupies a valley in south central Colorado about 80 miles long 

 with a maximum width of 45 miles. The valley is flat and treeless. The soils of 

 the foot slopes and alluvial fans are of porous, sandy, and gravelly character un- 

 derlain by leachy, gravelly subsoils. The alluvial soils of the stream bottoms are 

 usually sandy loams, loams, or clay loams underlain by gravelly subsoils. The 

 soils of the marginal slopes are gravelly sand, sandy loam, or loam, and are 

 derived mainly from volcanic rocks. They are leachy and not retentive of 

 moisture. The northern and central parts of the valley contain small areas 

 of the gravelly foot slope soils. The central and eastern parts of the valley 



