Knowledge of the processes of inflammation going on in the intestines of a typhoid patient gives the indication for treatment. This is in a word physiological rest. Let the bowel remain as immobile as possible, so that cicatrisation of the raw, ulcerated, and bleeding patches inside it may take place, and let no impetus be given towards perforation by undigested particles of food setting up violent peristaltic action. The rest must be also muscular as well as physiological. A sudden movement of the patient may rupture the friable adhesions between the ulcerated intestine and the peritoneum, and the dreaded perforation into the peritoneal cavity may consequently take place. When the inflammatory process, accompanied by fever, is over, and the appetite returns after the third week, the condition of physiological rest of the intestine must still be maintained as a leading principle of the diet. The slough is probably thrown off, but the raw surface is not yet cicatrised, and until cicatrisation is complete the patient is not safe from the fatal accident of perforation. In feeding him this is the first consideration.