“…Certain workers (17,18) have noticed that, in sympathectomized animals with sectioned depressor fibers, arterial blood pressure decreased temporarily following renal denervation. Others (19), however, made the observation that bilateral nephrectomy failed to prevent the development of acute neurogenic hypertension. A series of 36 experiments was therefore performed in which the glomerular filtration rate and the renal blood flow were examined both before and after section of the depressor fibers.…”