A 5-year-old spayed cocker spaniel was admitted to the Stange Memorial Clinic on April 14 1956, with a history of a persistent vaginal discharge. She had been treated as an out patient on June 10 1955 and again November 1, 1955. On th~ latter date cultures were taken and Staph[ococcus aureus along with Streptococcus sp. were isolated. Antibiotic sensitivity tests were also run and the organism were found to be most susceptible to terramycin, tetracycline and chloromycetin. On Dec. 17, 1956, she was again admitted showing no improvement with the antibiotic therapy. An exploratory laparotomy was performed at this time. No pathology could be found in the abdominal cavity except adhesion of the uterine stump to the bladder. She was discharged 5 days after surgery.