190 
COMMENTS ON MR. LUPTOn’s PAPER. 
circumstances symptomatic of some more serious disease. I 
merely confine my remarks to those slight discharges from 
the hind frogs, which are so frequently met with in horses 
that are allowed to stand in dung and moisture. So little 
importance is generally attached to these cases, that many 
veterinary surgeons, in their examination of horses, never take 
up the hind feet for the purpose of ascertaining what is the 
condition of the frogs. 
It is indeed very much to be regretted that the evidence 
given by veterinary surgeons in horse-causes should so often 
be of such a contradictory nature. A difference of opinion, I 
allow, is serviceable, and most likely to lead to a correct re- 
sult; but when such directly opposite views are entertained 
upon such common-place subjects as thrush, as to whether 
it should or should not invariably be held to constitute un- 
soundness, I apprehend that our profession is not likely to rise 
in the estimation of the public, and I can but hope that 
some means may yet be found to place the law of warranty 
on a more practical basis. 
[The particulars of the trial alluded to in this communi- 
cation will be found recorded in our present number, as will 
also some lengthy comments on the case, from the pen of 
Mr. Litt.] 
COMMENTS ON MR. LUPTON'S PAPER ON THE 
POSITION ASSUMED BY THE HORSE'S FORE 
FOOT IN PROGRESSION. 
By Thomas Paton, Y.S., Military Train. 
Having observed an article in one of the recent numbers 
of the Veterinarian entitled “ Physiological reflections on the 
Position assumed by the Fore Foot of the Horse in the varied 
movements of the Limb," by Mr. J. T. Lupton, a student, 
and not quite agreeing with his views, I am induced to offer 
a few remarks relative to the same subject; not, however, 
from any deep importance I attach to it, but as we may all 
be regarded as students, it behoves us to communicate our 
opinions, though they be opposite. Without attempting even 
a concise definition of the progression of an animal, permit me 
to state that the operation of muscular power which effects 
it, though regular, is in my opinion very indefinite as to con- 
secutiveness. Flexion, extension, rotation, approximation, 
and the amount of force from behind, all contribute a degree 
