During the spring quarter, 1952, of the gross anatomy laboratory, our group was assigned to a crossed shorthorn heifer. This heifer, in first pregnancy, had been purchased by the Anatomy Department and embalmed for the purpose of dissection.

On Aug. 12, 1952, a Hackney pony stallion was admitted to the Stange Memorial Clinic for a skin examination. At the posterior part of the neck, adjacent to the shoulder, was a raised, hairless area about 3 by 5 inches which contained several secondary nodules about the size of a marble. The skin of the area seemed to be abnormally thickened and it was more deeply pigmented than the unaffected skin. Just posterior to the olecranon at approximately the eleventh rib, on both sides of the animal, were solitary, raised, hairless areas about one inch in diameter. These appeared to be of the same nature as the larger area on the neck. No signs of pruritis were observed.

A 5-year-old Palomino gelding was presented at the Stange Memorial Clinic on Sept. 18, 1952. The history was of castration early in June. The horse had been cast for the operation but succeeded in regaining its feet numerous times during the operation. During the process of casting, several rope burns of the hind limbs were produced. The surgical incision had healed without any complications, but later in the summer he began to develop a stiffness of the pelvic limbs. In conjunction with the stiffness, the right inguinal region became swollen. Antibiotics were used as treatment, but with unsuccessful results.