'590 DISEASES OF THE ARTERIES AXD LYMPHATICS. ' 



Tlie local inflammation is manifested by swelling of the 

 inguinal glands when it is in a posterior extremity, and of the 

 brachial glands when a fore limb is affected; tho swollen glands 

 are very painful when pressed upon, and a swelling extends-t 

 dovmwards from them, first as a narrow elevation upon the* 

 inner side of the thigh or arm, but soon extending in every 

 direction ; it involves the whole circumference of the limb, from 

 the glands first inflamed down to the foot As the swelling 

 increases, the pain and lameness subside. 



Mr, Haycock, who was the first to give this disease a scien- 

 tific name, very graphically describes a case of it which occurred 

 in his practice. He says: — " The horse is standing in the stablo 

 on three legs, the left hind limb being held with tlie foot from 

 the ground. Great anxiety is depicted on the animal's coun- 

 tenance, and he frequently loolcs round at the limb held up. 

 The respirations are forty-eight per minute ; tlie pulse ninety-six, 

 and hard and cord-lilce to the touch. The nostrils are dilated to 

 their full extent, and the perspiration rolls in drops from the 

 sides of tlie abdomen, the shoulders, and the thighs. The affected 

 limb is greatly distended upon its inner surface, from its junc- 

 tion with the body to the very foot. The lymphatic glands are 

 swollen into large lumps or mosses, and towards them, in all 

 dii'ections, run a great number of lymphatic vessels, enlarged 

 to the size of a tliick quilL These enlarged vessels exist on 

 the outer as well as the inner side of the limb. The surface of 

 the swelling is covered with a sei-oua exudation; the mouth is 

 dry and clammy ; and great desire is evinced for cold water." 

 The horse lived for two years after the attack, the limb remain- 

 ing thicker than natural At the end of that time !Mr, Hay- 

 cock had the opportunity of dissecting the affected limb, and 

 he describes its condition as follows : — " On the removal of the 

 skin from the hind extremities, I at once observed a difference 

 in the colour of the exposed structures. The fascia of the dis- 

 eased limb was covered with a ye How -col cured fluid, not unlike 

 as though the tissue had been coated over with a quantity of 

 bile, or very yellow serum. On cutting deeper, I perceived the 

 areolar tissue to poatake of the same colour, and a yellow liquor 

 exuded from it; the tissue itself was also changed; it waa 

 dense, thicker, and partook moi-e of a fibrous character than 

 natural Tliis change was observable in, all. tlie areolar tissue- 



