322 



that I have obtained a pure culture of the tetracoccus from finger blood 

 of a child eight months old, born in Havana, and who was attacked with 

 a fever of eight days' duration, with two paroxysms and black vomit on 

 the fourth day. The child had never left this city, and had always lived in 

 a hotel where it was born and where, at the time of its illness, a Spanish 

 officer was just recovering from a severe attack of yellow fever. 



"A culture of this tetracoccus injected into a rabbit has proved 

 pathogenous. I have therefore every reason to believe it is the specific germ 

 of yellow fever." 



Yellow Fever Tracings 



I. B. V. — Non-albuminuris yellow fever, in the wet nurse alluded to 

 in the text, and whose milk gave the white tetracoccus with 

 which rabbit P was inoculated. 

 II. P. R. — Non-albuminuric yellow fever in the person who was 

 inoculated with the mosquito from which the primitive 

 tetracoccus was obtained and used in the rabbit inoculations 

 (A, B, C, etc.). The attack of yellow fever did not occur, 

 however, until fifty-six days after the mosquito had been 

 applied. 



III. C. V. — Simple albuminuric yellow fever in a sister of B. V., only 



seen on the third day of the attack. 



IV. R. C. — Severe albuminuric yellow fever in the friend of B. V. 



referred to in the text, and from whose finger blood the 

 yellow tetracoccus was obtained and inoculated into rabbits 

 Q and R. 

 V. P. H. — Simple albuminuric yellow fever — albumen rather 

 abundant. From the finger blood of this patient the tetra- 

 coccus was obtained associated with a bacillus. 

 VI. R. — Fatal case of melano-albuminuric yellow fever, 1884. 



VII. P. A. — Fatal case of melano-albuminuric yellow fever, 1892. 



VIII. S. D. — Fatal ease of melano-albuminuric yellow fever, 1894. 

 IX. P. I. — Fatal case of albuminuric yellow fever, uraemia, 1893. 



