This is a study of ninety-one cases in which benign glycosuria was diagnosed on the basis of the response to the simple oral dextrose tolerance test. The patient reported for the test after a fast of from twelve to sixteen hours, having received adequate carbohydrate previously. One hundred grams of dextrose was given by mouth, with 500 cc. of water. Samples of urine and venous blood were taken before, and one-half hour, two hours and three hours after the dextrose was given. The determinations of blood sugar were made with the technic of Folin and Wu. The urine was tested with qualitative Benedict's solution. The curves in charts 1 to 4, obtained in actual cases, are representative responses.
The results of the tests in eighty-two cases of normoglycemic glycosuria are given in tables 1 and 2. Sixty-one of the patients were men and twenty-one were women. Thirty of