BACILLUS ANTHRACIS. 559 
lowed by vomiting, diarrhoea, moderate fever, and pains 
in the legs and back. In acute cases there may be dysp- 
noea, cyanosis, and toward the end convulsions. The 
pathological lesions are similar to those described in 
animals. 
Wool-sorter’s disease, or pulmonic anthrax, is found 
in large establishments in which wool and hair are sorted 
and cleansed, and is caused by the inhalation of dust con- 
taminated with anthrax spores. The attack comes on 
with chills, prostration, then fever. The breathing is 
rapid, and the patient complains of pain in the chest. 
There may be a cough and signs of bronchitis. The 
bronchial symptoms in some instances are pronounced. 
Death may occur in from two to seven days. The path- 
ological changes produced are swelling of the glands of 
the neck, the formation of foci of necrosis in the air- 
passages, oedema of the lungs, pleurisy, bronchitis, en- - 
largement of the spleen, and parenchymatous degener- 
ations. 
Many theories have been advanced to account for the 
occurrence of intestinal anthrax among cattle and sheep, 
which in these animals is the most wide-spread form of 
the disease. It has been thought that infection was 
produced mainly by the eating of food contaminated by 
anthrax spores derived from the bodies of infected ani- 
mals; but only in rare instances has it been possible to 
trace the cause of the disease to this source. The 
grazing -of cattle on infected pastures has also been 
assigned as the cause of the disease; but this does not 
explain the occurrence of epidemics or the infection of 
cattle on pastures which have never before been visited 
by animals affected with anthrax. By some anthrax 
has been called a miasmatic disease and likened to 
