ANTHRAX. 



205 



bacilli through the guinea-pig, and transmitting them to swine by 

 injection of blood from the spleen ; (d) by injecting a pure cultiva- 

 tion of tlie anthrax bacillus ; (e) and lastly, the anthrax bacillus 

 was isolated from s^vine in which the disease was accidentally induced 

 on a fai'm, and the disease reproduced by inoculation of guinea-pigs 

 and mice with blood from the spleen. 



The Aicthor's Conclusions. — Swine of all ages can be affected with 

 anthrax. If the disease is induced by ingestion of anthrax offal, 

 the tonsils are ulcerated, and constitute the point of access of the 

 baciUi to the blood. In such cases the characteristic symj^tom is 



Fig. 100. — Anthk.^x in Swixe. From a photograph ta,ker> post-7norteM. Death 

 occurred four days after the inge.stion of offal from a bullock which had died of 

 anthrax, and there was well-marked cedema of the throat, cheeks, and eyelids. 



enormous swelling around tlie throat. If the disease is induced by 

 hypodermic injection, the same cedematous infiltration of the tissues 

 occurs at the place selected for inoculation. Death may occur 

 in twenty-four hours, or not until after five or six days. There 

 is a rapid rise of temperature, usually a rash-like chscoloration 

 of the skin, sometimes loss of power over the limbs, and general 

 weakness and disinclination to move ; the a nimal may lie helplesslj' 

 on its belly, and utter plaintive cries when disturbed. At the post- 

 mortem the most characteristic feature is the gelatinous a?dema 

 which, in the case of ingestion of offal, is found around the throat. 

 There is usually congestion of all the organs and engorgement of 



