THE CIRCULATORY SYSTEM. 443 



of multiple aneurism in connection with mycotic endocarditis have been 

 reported. Various species of bacteria may be excitants of malignant 

 endocarditis (Fig. 238). 



It is most commonly induced by Staphylococcus pyogenes aureus and 



FIG. 340. CHRONIC ENDOCARDITIS. 

 Showing thickening and coalescence of two of the aortic cusps. 



Streptococcus pyogenes. Micrococcus lauceolatus, B. typhosus, B. tu- 

 berculosis, B. anthracis, Micrococcus gonorrho3e, ' and others have been 

 occasionally found." 



1 For references and bibliography of gonorrhosal endocarditis see Lartigau, Am. 

 Jour. Med. Sciences, vol. cxxi., p. 52, 1901. 



9 For a general consideration of the pathology of infective endocarditis see Wasfi- 

 b&urn and others, Brit. Med. Jour., November 4th, p. 1269, 1899. For a study of the 

 meningococcus in acute ulcerative endocarditis see Warfield, Bull. Univ. Penna., July- 

 August, 1903. 



