It was not until the animals had been confined to the experimental rations for a year or more that differentiation in their appearance was easily observable. The corn-fed group was sleek and fine, and evidently in an excellent state of nutrition. In marked contrast stood the wheat-fed group. These animals were rough coated and gaunt in appearance, and small of girth as compared with those fed the corn-plant ration. The weights of the two groups did not differ in a significant degree. The groups fed the oat-plant ration and the mixture of the three plants, leaf and seed, stood intermediate between the lots just described. The assumption that the animals receiving the mixture of products would fare better than the others, and thus serve as the standard group for controls, did not prove correct. The corn-fed animals were at all times in a better state of nutrition than were those receiving the greater variety of food materials.