“…It is noted from this figure that the decreased potassium excretion that followed each period of sodium administration can only partially be accounted for by the decreased catabolism of protein that occurred at that time. Knowing that desoxycorticosterone, the salt-and-water hormone par excellence, produces an increased renal excretion of potassium (37,38) while patients with Addison's disease and adrenalectomized animals have a decreased ability to excrete potassium (1,39), this observed drop in potassium excretion is taken to be, at least in part, the result of a de-.creased salt-and-water hormone activity occurring at this time when there is a large renal sodium excretion. Unfortunately, the serum potassium concentration was not determined immediately following the days of lowest urinary potassium excretion to ascertain whether or not an elevation of serum potassium occurred as a result of this decreased renal potassium excretion.…”