42 BULLETIN 141, U. S. DEPARTMENT OF AGRICULTURE. 
The Clyde silty clay loam requires the use of heavy work animals 
and of improved farm machinery for its proper preparation and 
tillage. These are extensively employed throughout the region where 
it occurs. 
Except where the Clyde silty clay loam is found in tracts covering 
several square miles, farm buildings are usually located upon " some 
other soil type, most frequently upon some upland soil whose better 
drainage renders it more suitable for such purposes, 
The crops grown upon the Clyde silty clay loam are to a consider- 
able degree fed upon the farm to dairy cows, beef cattle, and hogs. 
In the more southern localities a part of the corn and oat crop may 
be sold from the farm. The type in general constitutes an excellent 
general purpose farming soil used to a limited degree for the grow- 
ing of special crops and in some localities developed as the basis for 
the fattening of stock or the dairy industry. 
CLYDE CLAY LOAM. 
The Clyde clay loam has only been mapped in five areas, in Michi- 
gan, New York, Illinois, and Wisconsin, the principal area lying in 
Eacine County, in the last-named State. The total area thus far 
encountered amounts to 19,392 acres. 
The surface soil of the Clyde clay lcam to an average depth of 
8 or 10 inches is a dark-brown cr black loam. It rests upon a yellow 
or drab colored clay subsoil which is often streaked with iron stains. 
Very little coarse material is found in either the surface soil or the 
subsoil. 
The Clyde clay loam is confined to level areas somewhat depressed 
below the level of the country in which it cccurs. It occupies either 
small scattered basinlike areas in the upland or somewhat larger 
areas in old glacial lake plains. In consequence of its position and 
of the stiff impervious character of the subsoil, it is almost always 
poorly drained in its natural condition. In fact, the agricultural 
occupation of the type is dependent upon the installation of arti- 
ficial drainage. 
Comparatively few of the Clyde clay loam areas are under cultiva- 
tion, and where it has not been artificially drained the type is either 
timbered or is used for the cutting of wild hay and for pasture. 
It is only in the vicinity of Eacine, Wis., that any large area of this 
soil has been occupied for the production of farm crops. In this re- 
gion the installation of drainage has permitted the production of 
corn, which gives yields of 40 to 60 bushels per acre; of oats, with 
yields ranging frcm 30 to 50 bushels; and of hay, principally timo- 
thy, giving yields of 1 to 2 tens per acre. 
In the immediate vicinity of Eacine, the type is quite extensively 
devoted to the cultivation of cabbage and onions. Cabbage produces 
