ON THE PROPAGATION OF ROT IN SHEEP. 
D.j 
little consequence; but, for about an inch beyond the posterior 
molar tooth, on each side of the inferior jaw, the upper surface 
of the continuation of the last alveolar cavity was quite ulcerated 
through, and the bone carious for an inch down each surface : 
the evil was evidently produced originally by the upper jaw-bone 
rubbing against it. The teeth were worn down almost to a level 
with the jaw ; but the ulcerated parts did not come in contact 
so much when the jaws were opposed to each other as when they 
were moved from one side or the other in the act of grinding. 
There was no other disease to account for her death, for every 
part was perfectly sound, except much attenuated. She was 
starved to death. 
ON THE PROPAGATION OF ROT IN SHEEP. 
By Mr. Edward King, Steam Carriage Station , Hammersmith , 
London. 
[The following very valuable Essay is the substance of a com- 
munication from Mr. King to the Quarterly Journal of Agricul- 
ture. Some of the facts which he states are not quite consistent 
with certain observations of our own ; but they are exceedingly 
interesting and important : and we earnestly entreat our readers 
to favour^us with the result of their experience on the subject — 
no inquiry more concerns the agriculturist and the veterinary 
surgeon. — Edit.] 
Whoever reflects upon the annual loss of stock by this de- 
structive malady will readily admit the importance of meeting 
this evil in the most philosophical and practical spirit possible, 
with a view both to its prevention and cure. At present I fear 
its cure must be despaired of; an accumulation of facts, how- 
ever, may, in time, put the cure of rot in our power. The pre- 
vention of rot is evidently more within the sphere of well-placed 
hope. The mode of communication of the disease from an un- 
sound flock to a sound one seems to be the first point requiring 
elucidation. 
To ascertain the mode of propagation of the fasciola hep a tic a, 
or fluke has been the subject of some experiments by myself, 
made with the direct object of enabling the shepherd to protect 
his flock from the disease called “ Rot.” 
Before I was born it had been ascertained that the fluke is of 
both sexes, or double sexed ; or each individual is both male and 
female, like slugs, snails, worms, & c. Each individual therefore 
