PRODUCERS OF ABSCESS, CELLULITIS, ETC. 475 



given they are followed by purulent peritonitis, beau- 

 tifully formed cocci in groups of four being obtained 

 in immense numbers in the exudate. Rabbits and dogs 

 are not affected by large doses of a culture subcuta- 

 neously or intravenously administered. 



The serum from immunized cases has not been used 

 therapeutically in human infection. 



