The valves of the heart are sometimes the seat of small wart-like growths. When a dog has been a constant sufferer from rheumatism, in such we occasionally meet with these growths. Their presence may prevent the valves from working: properly, or one may be whipped off, and thus block the circulation. Sudden death may occur.

Evertion should be avoided as much as possible; but this state can only be surmised during life, as in the case of the former disease.