On the evening of May 28th last, whilst making the visit for my colleague at the time of the evening meal, I had my attention drawn to a patient's urine by the deputy charge nurse of the male infirmary. He said it was very high coloured. I looked at the urine, and instead of finding, as I expected, a concentrated urine loaded with urates, I had presented for my inspection a urine of a distinctly reddish-brown colour, very suggestive of the presence of some blood derivative.