694 
VERANUS A. MOORE. 
convey information concerning certain morphologic characters 
and cultural manifestations and the degree of disease-producing 
power possessed by the organism designated. In the group 
of twenty-eight streptococci previously studied, I found the 
pathogenic forms, t. e., those able to produce disease in rabbits, 
guinea-pigs, or mice, about equally divided between the long 
and the short chains. Of the twenty-eight, nine possessed a 
certain amount of virulence for one or more of these animals. 
In that study no distinctive features were found to mark the 
streptococci isolated from different species of animals. In this 
respect no exceptions were found in the more recent studies 
about to be detailed. 
In the following pages I desire to call attention to the sup¬ 
purating lesions, diseases, and infections in which streptococci 
have been found, and to indicate the circumstantial evidence 
bearing on their etiological relation to these affections. A full 
description of the streptococci isolated will be omitted, attention 
being called in most cases simply to the more conspicuous 
character or property of each. 
streptococci in diseases of cattee and sheep. 
Streptococci have frequently been isolated from the suppu¬ 
rating lesions in cattle and in sheep. Lucet * has reported the 
results of a bacteriologic examination of fifty-two abscesses in 
cattle. From nine of these streptococci were obtained in pure 
culture, and in ten cases they were associated with other 
bacteria. 
In 1898 I published f the results of an investigation of an 
enzootic of suppurative cellulitis in the feet and legs of cattle 
due to streptococci infection. The disease caused much anxiety 
on the part of the cattle owners who had come to believe that 
it was '‘contagious foot rot.” Since that time a number of 
reports of the existence of a similar disease have been received. 
* Loc. cit. 
f American Veterinary Review, June, 1898. 
