42 BULLETIN 141, U. S. DEPAETMENT OF AGEICTTLTUBE. 



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 

 Kacine County, in the last-named State. The total area thus far 

 encountered amounts to 19,392 acres. 



The surface soil of the Clyde clay loam 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 occurs. 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 Racine, 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 from 30 to 50 bushels ; and of hay, principally timo- 

 thy, giving yields of 1 to 2 tons per acre. 



In the immediate vicinity of Racine, the type is quite extensively 

 devoted to the cultivation of cabbage and onions. Cabbage produces 



