This term is applied when there is blood in the urine. The blood may come from the kidney, the bladder, or the urethra; in fact, from any part of the urinary passage. It is a frequent symptom of nephritis and stone; and it may follow injuries. Urine, containing blood, coagulates under the action of heat and nitric acid, is dark in colour, and gives a sediment when allowed to stand in a vessel. The blood cells can be detected by microscopic examination; thus settling the question as to what the sediment is, and to what the dark colour is due. In the dog, there are no reliable symptoms by which the exact seat of the haemorrhage can be satisfactorily made out. This can be done in man. Thus, Dr Prout says, that when the "blood is derived from the kidney, it is in general equally diffused throughout the whole urine; on the contrary, when derived from the bladder, the blood, for the most part, comes away in greater or less quantity at the termination of the discharge, the urine having previously flowed off nearly pure." According to Dr Watson, haemorrhage from the kidney, or beginning of the ureter, is indicated by the passage of slender, cylindrical, fibrinous casts, which have been evidently moulded in the ureter. Again, the bladder is probably the seat of haemorrhage when the blood passes out after the evacuation of urine; and the urethra is probably the source of the bleeding when the blood escapes, without admixture of urine, before the urine makes its appearance. These remarks, borrowed from human pathology, may be of use in canine practice.

Blood is frequently discharged from the vascular growths which are met with on the prepuce, as the result of neglected balanitis. It is possible that this haemorrhage might be confounded with true haematuria, but an examination of the part will easily dissipate any doubt that there may be as to the source of the blood.

On the treatment of this disease Mayhew makes the following satisfactory remark?: - "I (having been unfortunate in these cases where I employed acetate of lead) adopted small doses of cantharides, and with these, to my surprise, succeeded; for which reason, I have persevered in my homoeopathic treatment. The quantity of tincture of cantharides I employ is three minims to two ounces of water, and, to my wonder, this appears to answer every purpose; the only fault, indeed, that a general practitioner might find with it being, that it did its work too quickly." What a fault!

This treatment is strictly homoeopathic, and, therefore, I can recommend its employment.