The term "chalk gout" is occasionally used to designate a rare disease more generally known as "calcinosis circumscripta." In this condition calcium stones develop in the skin in the vicinity of peripheral joints. Extensive reviews of the subject of calcinosis have been published during the past two decades: in Germany by Steinitz,1in America by Durham2and by Rothstein and Welt,3in France by Weissenbach and his co-workers4and in England by Atkinson and Weber5and by Brooks.6The first report of this disease in modern medical literature appeared in 1877 (Teissier7). However, Holländer8has republished a curious record dated 1654 in which reference is made to a probable instance of this disease. Steinitz distinguished two clinical types of calcinosis: (1) a circumscribed variety in which the calcium concretions are confined almost exclusively to the regions of the terminal phalanges of the