The graduate studies of the writer began at Brigham Young University in the Autunm of 1951, at which time he filed his intention of majoring in Zoology and minoring in Chemistry. During the first three quarters he received instruction under his committee chairman in a sequence of courses entitled: "Body Fluids", "Neurology", and "Endocrinology". During the first of these three courses the role of the kidneys in the maintenance of a relatively constant internal environment was discussed. During the course in Endocrinology the following statement was found in the text which suggested that the thyroid hormone might have an influence on the part of the kidney function involved in the maintenance of a rather constant blood clucose concentration: The metabolism of carbohydrates .... is influenced by the functional state of the thyroid gland .... the rate of absorption of sugar from the intestinal tract is low in thyroidectomized animals and high in hyperthyroid individuals. However, no direct reference we.s found in this text about the thyroid hormone and kidney function.