74 
LAM1NITIS. 
a desperate bad case it was. There could be no mistaking one’s 
eyesight in that case; and if following on an excited inflamed 
state of one mucous membrane, why not on another? At 
the present moment Mr. Dycer, a Veterinary practitioner of 
eminence in Dublin, has a case of pure laminitis following 
on influenza. I acknowledge that the most cases of metastasis 
I have seen following on influenza are into the thecas of 
tendons ; but it is not universal. And again, how in the 
name of goodness are we to draw the fine definitions between 
pneumonia and pleurisy. I acknowledge myself, although I 
have been at it for a long time, to be at fault ; a pure case of 
pleurisy, after death, in the horse, is rarely or never met with, 
the substance of the lungs being always more or less diseased ; 
and again, in the present disease of pleuro-pneumonia 
(influenza), for I can call it nothing else, are not all kinds of 
structures involved. Have we not serous as well as mucous 
membranes affected. Is not the membrane covering the 
heart always greatly thickened and diseased? and, although 
the disease is more confined than ever I saw it to the sub- 
stance of the lungs, which is going on to hepatization, yet it 
is rarely found that the pleura escapes. No, I cannot see 
that we can make these nice distinctions, although we can 
tell what kind of membrane the disease principally resides in. 
I consider there is always a complication of diseases both in 
serous and mucous membranes, in bad cases, although, of 
course, one may suffer more than the other. 
I have just called on Mr. Dycer, and he argues with me 
about cases of laminitis occurring after influenza, enteritis, 
&c. : he has seen it frequently. The case I before referred to 
as at present having laminitis, belongs to a Mr. Hunt, of 
sporting celebrity, in Dublin. Several of his horses had 
influenza, this horse among others, and when partially re- 
covered from influenza, he became lame in both fore feet, 
with the peculiar distinctive marks of laminitis, going on the 
heels, &c. 
Yours truly, 
H. J. Gloag. 
Dublin; Bee. 13, 1853. 
LAMINITIS, OR FEVER IN THE FEET; FROM 
METASTASIS, FOLLOWING PNEUMONIA. 
By C. Percivall, M.R.C.V.S., Royal Artillery, Dublin. 
The subject of this case was a troop-horse (No. 66) ad- 
mitted with a sharp attack of pneumonia, on the 7th of May, 
