XL] 



BACILLUS : PATHOGENIC FORMS. 



117 



through white mice l it loses this virulence for sheep and 

 cattle. The blood of white mice dead of anthrax does not 

 kill sheep ; it produces only a transitory illness and the 

 animals are, for a time at least, protected against virulent 



FIG. 82. FROM A SECTION THROUGH THE KIDNEY OF A RABBIT DEAD OF 



ANTHRAX. 

 The capillaries of the cortex are naturally injected with the Bacillus anthracis. 



1. A glomerulus. 



2. Capillaries surrounding the convoluted nriniferous tubules not shown here. 



Magnifying power 450. (Spiller's purple.) 



anthrax. The blood of guinea-pigs dead of anthrax produces 

 illness, sometimes death, in cattle, but as a rule does not kill 

 (Sanderson and Duguid), and the blood of the biscachia of 



1 Klein, Reports of the Medical Officer of the Local Government Board, 1882. 



