The first clinical description of this disease was reported by Kirkes.1 However, Corvisart and Leroux,2 in 1801, were the first to describe vegetations on the valves and the wall of the auricle which appeared to be typical of those of subacute bacterial endocarditis. In 1810, Wells3 described similar lesions. Since then, a great many cases in adults and comparatively few cases in children have been reported from various clinics in Europe and in our own country. In 1869, Bouchut4 gave a classic description of the pathologic changes in a child, aged 8 years, who died of a cerebral embolus. Harbitz5 and Litten6 gave the earliest satisfactory description of the pathologic anatomy and histology. During the past twenty-five years, a far greater appreciation of this disorder has become manifest by the ever increasing studies and reports of such observers as Koeniger,7 Loehlein8 and