THE BACTEBIA IN CONTAGIOUS MALADIES. 171 



and diphtheria is not, then, yet established by these 

 last experiments. 



Typhoid Fever. — Tigri first found bacteria in 

 the blood of a man dead with typhoid fever. 

 These organisms were also found by Signol (1863) 

 and Megnin (1866) in the blood of horses at- 

 tacked by a disease called by the veterinarians 

 typhoid fever. This blood, by inoculation, pro- 

 duced the death of some rabbits, with the same 

 alterations in the blood. 



Coze and Feltz (1866), having inoculated some 

 rabbits with the blood of typhoid fever, have 

 produced results which they consider analogous 

 and as accompanied by the same pathological lo- 

 calizations in the glands of Peyer. The blood of 

 an injected rabbit may be used upon a second 

 rabbit, with positive results, as in variola and scar- 

 latina. 



The species of Bacterium which is found in this 

 case recalls the Bacterium catenula, but its dimen- 

 sions are less. 



Glanders and Farcy. — The universal recogni- 

 tion of the contagious power of a liquid coming 

 from an animal with glanders had, a priori, led 

 to the supposition of an element of special con- 

 tagion. The first indication was given by Chris- 

 tot and Kiener (1868). These experimenters 

 discovered in the secretions and vascular glands 

 of animals attacked with glanders, bacteria of two 

 sorts : 1. Rods, sometimes having a vibratory mo- 

 tion without changing place, sometimes having 



