8 
NAVICULARTHRITIS. 
This continued for about three minutes, when the limbs 
became relaxed. The breathing was performed imperfectly 
for about the space of two minutes, and at the expiration of 
five minutes after the dose had been administered the animal 
was dead. 
This is the only time 1 have tried the effect of nicotine on 
animals, except once on a rat about two years ago. To it I 
administered half a drop. Convulsions quickly succeeded, 
which lasted for two or three minutes, after which it gradually 
recovered. 
NAVICULARTHRITIS TERMINATING IN 
“ GROGGY LAMENESS.” 
By R. H. W. Holloway, M.R.C.V.S., 2d Madras L. C., 
Sholapore. 
I inclose drawings, both before and after maceration of 
the navicular bones of the two fore feet of a troop horse, 
which belonged to this regiment. 
History of the case.-— He was admitted March 2d, 1856, 
with navicularthritis, and had four subsequent attacks 
between that date and the early part of April, 1857. 
Upon the first occasion, the near fore-foot w r as alone 
affected. 
The second time, both feet were attacked. The third, the 
off fore foot only. The fourth and fifth, both fore feet were 
again attacked. 
Symptoms . — The most prominent symptoms that I observed 
in this case were, constant shifting, and an alternate pointing 
of the fore feet. Considerable abnormal heat existed in 
the walls of both feet. The action was cramped, the steps 
taken short, and symptomatic of the affection, the toe being 
first brought, somewhat suspiciously, into contact with the 
ground. The near was rather smaller than the off fore foot. 
As the disease advanced, the reluctance on the part of the 
horse to stir became more manifest, and if compelled to do 
so, the movement was performed with that degree of appre- 
hension and extreme caution, wdiich betrayed the suffering 
such an act entailed. 
At such times, the hind legs w T ere, first, brought as much 
as possible under the centre of gravity ; the toes of the fore 
feet were then, in a manner most significant, planted on the 
ground, and by this arrangement, in a very painful and stilty 
manner, did the poor sufferer contrive to turn. 
