PLATE XXXI 



! 



A. Valves of the Heart much thickened as the result of Valvular Disease 



B 



B 



c \ \ 



i 



Calcareous degeneration of the mitral valve 

 A, A. Fibrous tissue 



Fibrous vegetation of the mitral valv< 



B, B, B. Calcareous degeneration 



VALVULAR DISEASE OF THE HEART (Endocarditis) 



