522 



J. H. RICHARDS 



In all cases Wassermann and gonococcus fixation tests were negative. 



2. Chronic endocarditis was found in 11 cases. 



3. A history of acute rheumatic fever was obtained in 12 cases. 



4. A history of chorea in 2 cases. 



5. Foci of Streptococcus viridans infection were found : 



Cases 



Teeth 50 



Tonsils 40 



Ethmoid 5 



Frontal 



Sphenoid 2 



Antrum 4 



