During the last 20 years there has been a marked change in the type of hogs from the short-legged, wide-bodied or hot-blood type to a longer, somewhat more narrow-bodied, leggier type. For development of size in hogs they must have (1) length and depth of body, (2) length of leg, and (3) large but not coarse bones. The long-bodied rather leggy pig grows rapidly and makes the larger hog. While the modern hog is still a lard hog, it is not as thick and broad as were its predecessors. It is logical to assume that the hog of the future will be required to make his gains more largely in growth on cheap roughages and less in fat on heavy grain feeding . It must also be noted that the hog which makes its gain by putting on a thick layer of f...