Ft- \llnN. 55? 



blood coutuiiiing the rod-like* on 



the spores wer> sloped, lie found the contagium : 



it which Dr. 



T of infection for *s at the fin 



n dried blood containing the fully-developed spores, 

 and exposed the substance to a < ll<- 



prrmitt'd tlie drictl blood to assume the form of 



i this dust, allowed it to dry again. permitted it to 



wiuttt* ior an indefinite time in th- >f pun. 



matter, and subjected it t> various other tests. After keeping 



blood which had been treated in this 



fashion for four years, In- inoculated a number of mice 



with it, and found its action as fatal as that of blood 



fresh from the veins of an animal suffering from splenic 



There was no single escape from death after 



ation by this deadly contagium. Uncounted millions 



of these spores are developed in the body of every animal 



which has died of splenic fever, and every spore of tln>e 



millions is competent to produce the disease. The name 



of this formidable parasite is /ittrillux finthrari*.* 



Now the very first step toward the extirpation of these 



I the knowledge of their nature; and the knowl- 



edge i to us by Dr. Koch will rentier as certain the 



HILT out of splenic fever as the stoppage of the plague 



of fn'-hrint- l>y the researches of Pasteur. f One small 



of statistics will show what this implies. In the single 



Novgorod in Kussia, between the \ 

 over fifty-six thousand cases of death by splenic 



* Korh found that to prodiirr its character! -tic HL-i-t- tin- <-,,ir 

 of th- spN-n'H' fever iim^t -MIT the !>I<<.<1; the virulently in f< 

 spl.-.-n .Md animal may In* -at-n with impunity l.y mic.-. 



On the "th.-r liand. the disea.se refuses to be ooinuui! 



to <logs, partridg*8, or sparrows In tln-ir ll" 



-imeB toact a^ n fcri'..- HHLMUK-.'.! nmn* than 



six years M/O the propagation of th* vihri' k worm disease 



th l Jis 



iled Loth ly Jissjon and by spores. !! al-o in.-i.i. 



tin- J.ITI: . the contagium in th* 



res. Bee " Etudes sur la Maladie des Vers :> 



at the immunity njoy'd ly I. from 



: th-ir hlxd. which destroyed tin- 

 lowered tli. 

 them. lit* nlso raiM'il th- t.-mp.-r . 



It is needless t- upor 



