764 
E. O. THURSTON. 
* 
A.—Bone causing perforations, etc. B.—Internal aspect of oesophagus. C.—Skewer placed in 
perforation into lumen of aorta. D.—Internal aspect of aorta. 
wide, surface smooth, red, and at one point penetrating the 
lumen of the aorta; another very small one is beneath it; on 
the other side are two ulcerations, one quite penetrating the 
oesophageal tissues, another small one more superficial. From 
this it will be seen that death was due to internal haemorrhage 
caused by this piece of bone penetrating the oesophageal 
wall, and into the lumen of the aorta. 
In conclusion, I beg to thank Dr. Martin, of the Patholog¬ 
ical Laboratory, for the very kindly interest he has taken in 
this case; and also my fellow student, Mr. Harri H. Dell, for 
the admirable pen drawing from which the accompanying 
cut is taken. 
