ABDOMINAL TUMOUR AND RUPTURE OF THE COLON. 683 
on a close investigation, found to be composed of three seg¬ 
ments closely connected together by fibrous tissue, thus 
forming several pseudo joints where motion could take place 
during progression. Had this not been the case, the move¬ 
ments of the limb must have been most defective, even in the 
walk. 
The practical anatomist is well aware that the muscle in 
question contains only a small amount of contractile or mus¬ 
cular tissue as compared with any other muscle in the body; 
its bulk, consequently, consists chiefly of white fibrous tissue. 
Both in structure and function the flexor brachii therefore 
resembles a ligament, and ligaments are well known to the 
pathologist to be particularly prone to take on the ossifying 
process; indeed, this is the case with all organs composed of 
white fibrous tissue, and especially those that are exposed to 
injury or over-tension, which disposition is much greater in 
old animals than in young ones. 
This case is well worth recording, as it, above all others 
that I have met with of this class of disease, beautifully 
illustrates the morbid changes that often take place in the 
tissues composing the animal body. 
I regret Mr. Stephenson did not give the cases he 
alludes to of a similar nature to the above, as I have no doubt 
but they would have been interesting. On some future 
occasion I hope to be favoured with them. 
LARGE ABDOMINAL TUMOUR AND RUPTURE 
OF THE COLON. 
By R. S. Hardy, M.R.C.V.S., Sleaford. 
Dear Sir, —I have forwarded to you a large tumour 
taken from a gray horse, four years old, that was found dead 
on the 10th ult. The particulars of the case are as follows. 
The animal was the property of H. Bissell, Esq., surgeon, 
of this town. 
My attention w T as first called to the horse on the 5th of 
July. On my arrival I found him showing symptoms of 
abdominal pain, frequently lying down, rolling on his back, 
turning his head to the left side and pawing. Pulse 70 and 
weak; respiration increased; visible mucous membranes in¬ 
jected ; ears and extremities cold ; no action of the bowels, he 
having passed no faeces since the day previous. Upon inquiry 
I found that he had been living upon green food up to within 
