l6o BACTERIOLOGY. 



vessels have been injured, as for instance by 

 haemorrhages. The placental tissue of rabbits 

 has a greater tendency to haemorrhage during 

 anthrax than that of sheep, so that an intra- 

 uterine infection results frequently in the for- 

 mer animals, Very rarely in the latter. Such 

 haemorrhages may occasionally arise through 

 rupture of capillaries which have become 

 choked with bacilli and hence be due to a me- 

 chanical cause, but as a rule they are to be 

 referred to the effect of the toxin. Hankin, 

 Brieger and C. Frankel have prepared from 

 cultures a poisonous albumose, but Marmier ' 

 has lately disputed the proteid nature of the 

 poison. 



In the carbuncle that is found in cutaneous 

 anthrax in the human subject there generally 

 occurs a mixed infection. This may lead sec- 

 ondarily to other septicaemias or to pyaemia, 

 and in this way it happens that people who are 

 healed of the primary anthrax infection some- 

 times die notwithstanding. 



Swine erysipelas and mouse septiccemia. 

 The bacteria found in these diseases are extra- 

 ordinarily slender rods .1 ,2/* thick and .8 i.o/-* 

 long. Endospore formation has not been pos- 

 itively observed, and whether or not the orga- 

 nism is a true bacillus is therefore still uncer- 



1 Ann. de 1'Inst. Pasteur, IX., p. 533. 



