E. Miscellaneous Infections 



jJxperi.'nent 13. — This experiment was conducted on an 

 adult rabbit - No. 41. It was injected intravenously viith in- 

 fluenza bacilli washed from a slant of cooked-blood ajjar. The 

 rabbit died 18 hours later without any macroscopic lesions, 

 but with a tremendous number of influenza bacilli in the blood. 

 The opsonic results are given below. 



Although this animal was overcome by a rapidly fatal in- 

 fection, aided perhaps by the intoxication resulting from a 



n. ^ 



large initial infection, its opsonic defense, except for the 

 specific infecting bacteria, remained intact up to the very hour 

 of its death. 



3xp^riment 14. — The two cases presented below are cats 

 which died of a spontaneous infection of B. bronchigepticus . 

 the infection in each case had lasted for three days and both 

 animals presented moderate emaciation. During the last 24 



(41) 



