Three of the various forms of intestinal ulceration need to be considered in relation to diet. As regards ulcerative colitis nothing need be added to the recommendations made in the preceding section. As far as possible milk alone should be given. The same recommendation applies to those cases of carcinoma of the colon, of which ulceration, rather than stenosis, is the chief feature with diarrhoea and bleeding. As regards tuberculous ulceration, it is held by some, I believe with truth, that if profuse diarrhoea is the chief symptom, we may feel sure that the colon is at any rate as much affected as the small intestine. In such cases I think a milk-carbo-hydrate diet affords the best chance of relief. Of carbo-hydrate foods rice, tapioca, and arrowroot are to be preferred. But it is possible that, when the small intestine is chiefly diseased, the acid fermentation resulting from such a diet may have an irritating effect. Though milk need not be entirely withheld, it may be well to try the effect of replacing the carbo-hydrate element by protein food.