374 BACTERIA IN INFECTIOUS DISEASES. 



a septicaemic rabbit just dead, which was proved by 

 microscopical examination to contain the micrococcus 

 in abundance. This needle was then introduced under 

 the skin of another rabbit, which died within forty- 

 eight hours, and presented the usual appearances of 

 septicaemia. 



Protection was also afforded in one case by an injec- 

 tion of virus which had been mixed half an hour 

 previously with 'three parts of 95 per cent, alcohol. 



Finally, I take the liberty of quoting the case of Dr. 

 Formad's famous buck rabbit : 



" There remained in the laboratory a number of living 

 animals, left over after the various experimenters of my 

 pathological class ceased work, at the conclusion of last 

 winter's term. Among the number was a buck rabbit, 

 which had been largely dosed, by my friend Claxton, 

 with saliva of some kind. Since then, during the last 

 six months, this same rabbit was injected subcutane- 

 ously, at different times, with all the. articles of the 

 following bill of fare : 



"1. Human saliva (second time); 2. Cancer juice; 



3. Epidemic diphtheritic material from Michigan ; 



4. Bouillon, containing a rich crop of cultured mi- 

 crococci from the same material ; 5. Diphtheritic ma- 

 terial from a fatal case in the city ; 6. Slough from 

 rabbit, dead from diphtheria ; 7. Slough from scarla- 

 tinal sore throat ; 8. Slough from erysipelas ; 9. Slough 

 from gangrene ; 10. Cadaveric poison ; 11. Feces from 

 typhoid fever case ; 12. Sputa from case of tuber- 

 culosis." i 



It is pretty evident that this rabbit was pro- 

 tected from septic poisoning; and the case is ex- 



i Philadelphia Med. Times, Sept. 16, 1882, p. 194. 



