Charbon and Anthrax. 



391 



inoculation failed in dogs, it was not the same with some 

 sheep. They died a few days afterward, presenting all the 

 symptoms and pathological lesions of true charbon fever 

 (quoted by Mr. H. D. Eichardson, Domestie Pigs, p. 123). 

 We shall draw clearly the distinction between charbon and 

 contagious pneumo-enteritis, as laid down by the distinguished 

 recent investigator, Dr. Klein, of London, in the Proceedings 

 of the Eoyal Society for 1878. 



Time Charbon, 



Period of incubation or lat- 

 ency, from a few hours to 

 three days. 



Easily transmissible to other 

 species of animals. 



Si^leen always enlarged and 

 often broken down. 



Blood after death, dark and 

 fluid. 



Bacillus anthracis in the 

 blood. 



Contagious Pneumo-enteiitis. 

 Period of incubation from 

 two to five days and more. 



Rarely and with difficulty 

 transmitted to other species. 



Spleen rarely enlarged, or 

 otherwise changed. 



Blood after death of ordin- 

 ary appearance. 



'No bacillus anthracis in the 

 blood, but numberless bacilli 

 in the serum of thorax and 

 abdomen. 



Lungs and bowels alicays 

 both ipflamed. Cough always 

 present. 



The red or purple color 

 diffi.ised over the surface, and 

 of an erysij)elatous appear- 

 ance. 



With the above table before him, it will not be possible 

 for any ordinarily careful observer to confound the two 

 diseases. No doubt there is a strong analogy between them, 

 as, in both, diverse species of the same vegetable organism 

 are the exciting cause of the contagion. 



Lungs and bowels frequent- 

 ly not implicated. Cough 

 may be absent. 



The discoloration local, and 

 of a true carbuncular apj^ear- 

 ance. 



