DISEASES OF THE AKTERIES. 417 



in the first place, that the right external iliac artery was 

 firmly plugged with a firm clot. This clot closed the poste- 

 rior end of the aorta, and continued into the left iliac artery. 

 We dissected further, and found the femoral, the anteria 

 profunda, and other arteries of each thigh perfectly plugged 

 and of a deep red colour, here and there assuming a purple 

 hue. The plugging continued down as far as the popliteal 

 arteries, which were pervious. The muscles of either thigh 

 had not lost in bulk, but simply in colour; they were pale, 

 though firm, and bore evidence that they had been well 

 nourished up till recently, but had been very effectually 

 deprived of blood a short time before the animal's death. 

 The blood throughout the anterior part of the body, and in 

 the cavities of the trunk, was of course found perfectly fluid, 

 even in the heart. 



"We proceeded, in the next place, to examine the arteries of 

 the pelvis, and found the internal iliacs and their branches 

 distended with solid clots. 



These arteries we preserved. Unfortunately, however, on 

 reaching Edinburgh in the evening, we found that the mesen- 

 teric artery had been left behind. Thanks to Mr Clark 

 Stanton, we preserve a beautiful water-colour drawing of the 

 plugged vessels. 



The post-mortem examination was concluded by the exa- 

 mination cf the abscess in the submaxillary space, which we 

 found to contain a little pus, which had not much chance of 

 escaping through the small round orifice which remained. 

 The cranium and spinal canal were opened, and their contents 

 found healthy. The hocks were then examined; the right 

 one being perfectly healthy, but the left one, from which the 

 issue had been removed about ten days, had most thoroughly 

 healed, found to be affected with spavin. 



The severe pain attendant on the first symptoms of emboli 



2 E 



