On May 27, a 7-year-old Holstein bull was brought to the Stange Memorial Clinic. It showed an enlargement on the ldt side in the area of the prefemoral lymph nodes and another below the paralumbar fossa on the same side. According to the owner, these growths had been present for several weeks. The owner also indicated that the animal had been off feed.

The prevention and control of mastitis, regardless of its cause, is definitely a herd management problem. Its success depends almost entirely upon the dairyman himself, his family and his employees. If they have the will and desire to control the disease it can be done, otherwise it will be a failure.

It has been noticed at the Stange Memorial Clinic that the incidence of canine leptospirosis has been steadily increasing. Definite diagnosis of this condition has not been established in all suspected cases, but symptoms and post-mortem lesions commonly seen in this clinic often point to one or more of the various syndromes of the disease. The attention of the general practitioner especially is called to the role which this condition may be playing in the gastrointestinal disturbances of the canine. Many times gastrointestinal symptoms are the most spectacular ones shown, and unless the practitioner is aware of the possibility of leptospirosis, he may very easily make a mistaken diagnosis.