ON EPIZOOTIC DISEASES. 
32 
autumn, and in the rest of the year to leave the flocks but little 
in the fields which contain this plant. As for the curative treat- 
ment, it differs not from that which has been indicated before. 
The encysted tumours on the lungs were hydatids. 
My friend, Mr. E. Bailey, V.S., assisted me in examining the 
urinary bladder. On laying it open, five separate fungus hsema- 
todes presented themselves studded on the body of the cyst, all 
emanating from the villous tunic, varying in size from one-fourth 
to one inch in diameter, shaped like a pear, having thin short 
footstalks, and distant from each other from two to three inches. 
When pressed, they discharged blood in all directions. A beautiful 
display of bloodvessels ramified into the mucous membrane, en- 
circled each fungus, and formed a focus in the pedicle. On 
cutting into their substance, I discovered, with the aid of a good 
magnifying glass, a number of thin membranous divisions, form- 
ing minute cells, some of which were charged with a medullary 
looking substance, and others with thin blood. This accounts 
for the red-water ,- and it is probable that all the other cattle on 
the farm are diseased in the same manner. Post-mortem exami- 
nation alone will ascertain this point. 
Treatment . — The treatment hitherto consists of palliatives, as 
I know of only one successful case, by Robert Thomas, M. D., 
Salisbury. The fungus had attained the size of a cauliflower, 
seated on the left side of the body. It was removed by one or 
two applications of pulv. arsenios. combined with sulphur and 
opium. Where the fungus has a narrow pedicle, a ligature may 
be applied. If this dreadful distemper is situated internally, if it 
could be recognised, I know of no remedy. 
I am, 
Very truly, your’s, 
James Anderson, Leicester. 
ON EPIZOOTIC DISEASES. 
By Mr. W. Youatt. 
I use the term epizootic as most expressive of the character of 
the diseases to the nature, causes, and treatment of which I am 
about to solicit the attention of the readers of The Veterinarian. 
An epidemic disease is that which prevails among human beings ; — 
an epizootic may embrace one class of animals alone, or may 
extend to all that have life. They may exist at the same period. 
They frequently do so to a greater or less extent, for their causes 
