On Sept. 30, 1953, a three-year-old Pekingese female was admitted to Stange Memorial Clinic. She was emaciated, depressed and appeared toxic with a history of being sick periodically for the past two years. She had been treated several times for a kidney infection by a local veterinarian. Her owner noticed a hematuria along with frequent and scanty urination, and thought she could feel a stone in the abdominal area. Palpation of the abdomen revealed a large circumscribed mass in the region of the bladder; fluoroscopy disclosed a cystic calculus. Because kidney infection was suspected, a blood urea deterimination was made and found to be 172 mg. per 100 cc. of blood.