This is a species of paralysis which affects, usually, all the muscles of locomotion in a similar manner. The cerebellum (little brain) or small division at the base of the brain is the seat of the disease. It is generally due to some injury to the top of the head, as a blow, or to falling backwards and striking the head. It may also result from undue pressure upon the part, as from a tumor growing there.

Symptoms. - The most prominent is inability to control the movements and walking with an unsteady, tottering gait. The hesitation and uncertainty with which the horse lifts and replaces its. feet in walking are often mistaken for stiffness. The appetite is generally good and the animal may be in good flesh.

Treatment. - Treatment is the same as in paralysis except that the liniment only need be applied on the top of the head.