Case 4. A Greek (male) of 48, diabetic for two months, entered Jan. 14, 1915, with 3.8% (65 grams) of sugar and moderate acetone reaction. There was no diacetic reaction present at entrance. After one starvation day he became sugar-free, but was kept on starvation one day longer and then started on vegetables in the usual way. After the third day a moderate amount of diacetic acid appeared in the urine and continued. The ammonia rose from 0.7 grams per day to 2.6 grams per day, and then varied from 0.3 to 1.5 grams per day. No symptoms of acidosis. Jan. 18. Carbohydrate, 15 grams. Protein, 25 grams. Fat, 150 grams--1360 calories. No glycosuria. Jan. 20. Carbohydrate, 15 grams. Protein, 25 grams. Fat, 200 grams--1571 calories. No glycosuria. Jan. 24. Carbohydrate, 25 grams. Protein, 35 grams. Fat, 200 grams--1760 calories. No glycosuria. Jan. 26. Carbohydrate, 35 grams. Protein, 40 grams. Fat, 200 grams--1838 calories. No glycosuria. Jan. 29. Carbohydrate, 45 grams. Protein, 50 grams. Fat, 200 grams--2194 calories. No glycosuria. Jan. 31. Carbohydrate, 50 grams. Protein, 60 grams. Fat, 200 grams--2347 calories. No glycosuria. Discharged Feb. 1 sugar-free on this diet. Weight at entrance, 160 pounds. Weight at discharge, 156 pounds. This was not a severe case and responded very easily to treatment. * * * * * Case 5. A female of 59, a diabetic of two years' standing, excreted 2.6% of sugar on Jan. 16, 1915, with no acetone or diacetic acid reactions in the urine. Severe pruritus vulvae. Starved two days; sugar-free on the second starvation day, with disappearance of the pruritus. Jan. 21. Carbohydrate, 15 grams. Protein, 25 grams. Fat, 150 grams--1595 calories. No glycosuria. From this time the diet was slowly raised until on Jan. 30 she was getting Carbohydrate, 35 grams. Protein, 45 grams. Fat, 200 grams--2156 calories. She was sugar-free on this and was discharged to the out-patient department after a two weeks' stay in the wards. Weight at entrance, 135 pounds. Weight at discharge, 133 pounds. * * * * * Case 6. A man of 52, entered Jan. 10, 1915, with 1% of sugar. He entered for arteriosclerosis and hypertension, and the sugar was found in the routine examination of the urine. He was kept on house diet for a few days and his sugar rose to 3.5%. No acetone or diacetic acid. After two days of starvation he became sugar-free and continued so as the diet was slowly raised. He was kept sugar-free in the ward eighteen days and was sugar-free on Feb. 6 with a diet of Carbohydrate, 60 grams. Protein, 60 grams. Fat, 200 grams--2280 calories. On Feb. 7 the protein was raised to 80 grams and 0.2% of sugar appeared in the urine. The protein was then reduced to 60 grams and he remained sugar-free on this diet and was discharged so.