348 
D. E. SALMON. 
testify that they died of disease of the lungs, that these organs 
were greatly enlarged, inflamed and firmly attached to the ribs 
and diaphragm. There is, consequently, plenty of good evidence 
that the animals have been sick and have died, and that in all 
cases there was inflammation of the lungs and pleura, in other 
words, pleuro-pneumonia. 
It is admitted of course that in rare instances a disease is met 
with in individual animals which may have many of the appear¬ 
ances seen in contagious pleuro-pneumonia ; but such cases appear 
singly, and the disease is not communicated .to other animals of 
the herd, and for the same reason not to other herds. The most 
conclusive evidence of the contagiousness of pleuro-pneumonia is, 
consequently, its communicability. I beg to present to you in 
this connection, therefore, and through you to the members of the 
Chicago Live-Stock Exchange, the following history of the 
present outbreak of disease, any and every fact of which I invite 
you to inquire into and substantiate for your own Satisfaction. 
In November, 1883, C. R. C. Dye bought a number of un¬ 
registered Jersey cattle, which were gathered up in the vicinity of 
Baltimore and taken to his farm at Troy, O., where his herd was 
exposed to them. About the 1st of February, 1884, his fine bull 
Rayon d’Or sickened with symptoms of acute lung disease and 
died in March. He was examined and found affected with pleuro¬ 
pneumonia. Other animals to the number of eighteen afterwards 
contracted the disease, and seven in all died or were killed by him. 
September 18th I selected seven of the animals which had been 
sick and still presented signs of the disease and slaughtered them. 
Every one was plainly affected with pleuro-pneumonia. We may 
call this experiment No. 1. 
In February, 1884, C. N. Mitchell, of Dayton, O., purchased 
three heifers of Mr. Dye and placed them with his herd of about 
thirty animals. As a result seven have died of pleuro-pneumonia 
and five show plain indications of the same disease. This is ex¬ 
periment No. 2. 
Experiment No. 3 was made by A. G. Epler, of Virginia, 111., 
who purchased five animals from Dye in January and placed 
them among the lot sold by him on the 21st of February. Of 
