As diabetes is mostly a sequence of some previous disturbance of the urinary system, it the more behooves the afflicted to heed the first noticial summons of attack: a handful of water will sometimes quench a mouldering ember that, suffered to rise into a flame, an engineful can not extinguish. I may add, there is no cause so destructive to virility as these drainages from the system through the urethra—an additional reason why they should be attended to upon their first appearance. _Cases where but a small quantity of urine is voided, terminating in suppression, of urine._—The most popular scientific synonymes for complaints are but little understood by men really of education; for, as yet, medical knowledge forms not one of the items of collegiate lore, and few anticipate sickness to render such acumen necessary. The term “Strangury,” from the frequency of its occurrence, is uppermost in most men’s minds; and they use it on all occasions when there happens an interruption to the process of making water. It is oftentimes misapplied. Strangury implies a difficulty in voiding the urine, but it does not include those cases wherein little is voided, because there is little to void. The affection I am now about to make mention of, is of the latter description. I have stated that the urine is subject to a multitude of changes, that the human frame is constituted to exist under a variety of circumstances, and that occurrences are daily happening, wherein its integrity is put to the test. Excesses, termed sensual, and others, which in themselves might destroy life, are counterbalanced by what may be styled the _safety-valves_ of the system. A violent fit of purging, perspiration, or micturition, is often the means of warding off an otherwise fatal blow. The skin, the bowels, and the kidneys, are severally to be acted upon as emergencies demand: instance the specific operations of diet and medicines. The color of the urine is altered by (to give a popular illustration) _rhubarb_; its odor, by _turpentine_ (taken internally, or from an inhalation of the vapor of them), and by the well-known vegetable _asparagus_; and its composition by alkaline and other chymicals. The function of cutaneous exhalation is augmented or diminished by warmth or cold; and the action of the bowels is suspended or increased by innumerable substances, forming portions of our daily food.