ULCER ATI VE ENDOCARDITIS VARIOLA. 411 



pare his figure (Fig. 26) with that of Cheyne 

 (Fig. 28), and with my photo-micrograph, Fig. 1, 

 Plate VIII. Certainly the rounded ends of this 

 typhoid bacillus are not peculiar to it. 



ULCERATIVE ENDOCARDITIS. " In this affection, it 

 is well settled to-day that the cardiac walls and, above 

 all, the valves, are covered with parasitic masses. Some 

 think that the malady is due to the introduction of 

 these parasites into the interior of the tissues ; others, 

 on the contrary, like Hiller, deny that the bacteria bear 

 any causal relation with the lesions of ulcerative endo- 

 carditis." (Magnin.) 



VARIOLA. " The partisans of the parasitic nature of 

 variola may be divided into two groups : 1. Those who, 

 with Coze and Feltz, attribute the virulence to a Bac- 

 terium ; 2. Those who, with Luginbiihl and Weigert, 

 attribute it to a Micrococcus. Coze and Feltz have in- 

 deed discovered bacteria in the blood of variola, and 

 this blood injected into the veins of a rabbit has given 

 it a mortal malady, which these observers consider vari- 

 ola. But Chauveau has shown that the affection which 

 proved fatal to the subjects of the experiment was not 

 and could not be variola. Another objection is that 

 bacteria are not found in all those who suffer from 

 variola. However, Coze and Feltz and Baudouin affirm 

 that there are in variolous blood numerous rods, of 

 which the appearance is similar to that of Bacterium 

 bacillus and Bacterium termo of Miiller. These ele- 

 ments do not at all resemble those found in other 

 infections, and when inoculated possess the power of 

 reproducing variola. 



" As to the Micrococcus of variola, they have been 



