24 BULLETIN 141, U. S. DEPARTMENT OF AGRICULTURE. 
While there is some difficulty in securing a good seeding of mixed- 
grasses, clover gives a good seeding and excellent yields. Mixed hay 
produces an average of about 1 ton per acre, while clover alone yields 
from 1 to 1J tons per acre at the first cutting with a possible second 
crop for seed. Red clover is chiefry grown, although the alsike clover 
is also well suited to production on this soil. 
Some difficulty is experienced in securing a good stand cf sugar 
beets and they are grown only to a very limited extent upon the 
Clyde gravelly sand. Beans give f airly good yields. 
The Clyde gravelly sand is so thoroughly drained that the longer- 
growing field crops are not so well adapted to production upon it 
as the early truck and small fruit crops. As yet, these are scarcely 
grown at all since the chief areas of the type, as found, are not 
especially well situated with regard to markets. Considerable areas 
of the type are not occupied agriculturally. 
CLYDE FINE SAND. 
The Clyde fine sand has been encountered in eight different soil- 
survey areas, located in New York, Indiana, Illinois, and Wisconsin. 
A total area of 74,048 acres has been mapped of which 68,480 acres 
are found along the terraces bordering the Kankakee River in 
Newton County, Ind., and Will County, 111. The other areas are 
small and of little agricultural importance. 
To an average depth of 10 inches or more, the surface soil of 
the Clyde fine sand is a dark-gray to black, medium to fine sand. 
It is always heavily charged with partly decayed organic matter and 
not infrequently grades into included areas of peat. In such cases 
the organic matter is found to extend in large quantity to depths of 
3 feet or more. In other instances, near the margins of sandy islands 
and bars, which rise above the general level of the Clyde fine sand, 
there are bordering areas where the dark-colored surface soil is only 
about 4 to 6 inches deep. In some localities over the more level 
portions of the type, sandy areas with a shallow covering of organic 
deposits are also found. The subsoil is a gray sand which varies 
from dark color near the surface to a lighter gray or ash color at 
greater depths. The subsoil is sometimes mottled with brown or 
yellow stains. At the greater depths the sandy subsoil frequently 
becomes somewhat compact and sticky through the presence of larger 
proportions of silt and clay. The type is stone free in both soil and 
subsoil and even gravel is of rare occurrence. 
In all cf the smaller areas of its occurrence the Clyde fine sand 
occupies small depressions within the area of other sandy soil types 
and owes its existence to the deposition of large amounts of organic 
matter where natural drainage was deficient. These areas mark the 
