MANGE

a parasitic disease of the skin caused by the presence of minute mange-mites. They are of four main kinds: (1) Sarcoptes, which burrow through the skin; (2) Psoroptes; (3) Symbiotes; and (4) Derma to dec tes, which are more superficial in their operations. M. affects the horse, cow, sheep, pig, dog, cat, and also man. M. in horses is compulsorily notifiable to the local authorities, as also is psoroptic M. in sheep or sheep scab. Repeated application of greasy dre ings destroys the parasites.