HOVE. 
61 
blue vitriol. This application is not intended to be used until 
after the foot has been properly pared and cleaned; and it 
must be repeated so long as any disease remains. Jour, de Mtd. 
Vet. et Comp. 
HOVE. 
HOVE, hoven, blown, are the terms vulgarly used to denote 
that distressing and dangerous malady to which ruminating 
animals, cows in particular, but sometimes oxen, sheep, and 
even goats, are subject, frdm gorging itheir paunches with luxu¬ 
riant and growing succulent green-food, especially clover. It 
.is a case, ^when it occurs, demanding immediate aid, should 
which not be at hand or fail to afford the required relief, the 
animal, after running or staggering about, wild and frantic with 
pain, precipitates itself upon the ground, and, overwhelmed with 
agony, becomes convulsed and dies. The immediate cause of 
all this distress being over-distention of the paunch with air, 
produced by the indigestion of the green food with which its 
cavity is crammed, the remedy, as every cattle-man knows, con¬ 
sists in making an opening into the paunch, such as will give 
free vent to its gaseous contents. Sometimes a common awl is 
used for this purpose; more commonly a pen-knife : the most 
convenient and effectual instrument is a trocar, similar, but 
longer, to the one employed by surgeons in tapping for dropsy. 
M. Chretien, Veterinary Surgeon, at Vermanton (Yonne), has 
made some imjirovements in the construction of the canula of 
the trocar, having, as he says, experienced some inconveniences 
in the course of practice with the one in common use. This 
canula is made of tin, (silver would answer the purpose still 
better?) and is six inches in length, the diameter being the 
same as in others. The sides of the inferior third of the tube 
are pierced with twelve or fifteen small holes, which serve to 
give vent to the gas and frothy matters, in. case the canula 
should be pushed against the alimentary mass, or some of 
these matters should gain admittance into its canal. A metal¬ 
lic plate, soldered to it externally, about the third of an inch 
below the superior end of the canula, defends the wound from 
the ejected matters; and through this two holes are punched, 
one above, the other below, to which the circular band is at¬ 
tached that retains the tube in its place ; the band requiring 
tightening according as the distention of the belly becomes re¬ 
lieved. When the gas has made its escape, the mouth of the 
