284 Observations upon the 
was a copious effusion of blood and of bloody 
water in the neighbourhood of the fracture. 
The lower portion of bone lay embedded in 
the flexor muscles, which were highly dis- 
eased, its external membrane was thickened 
in irregular patches, the fractured face was 
covered with its proper effusion. The upper 
portion of the fracture had its external mem- 
brane inflamed and uniformly thickened, its 
fractured face was completely capped and 
smoothed, a slight effusion of coagulable 
lymph was thrown out by the external mem- 
brane of this portion of bone, but none from 
the lower portion. 
_ Exp. 8. Ninety hours after fracture —This 
bone.was much splintered ; the muscles were 
much injured, and a bloody water was thrown 
out into the cellular membrane. A small 
portion of muscle was interposed betwixt the 
overwrapping bone. No effusion covered the 
face of the fracture of the lower portion of 
bone ; the external membrane was diseased, 
and the bone denuded in irregular patches, 
it had made its way through the soft parts, 
and lay immediately under the skin ; the face 
of the superior fractured part was covered 
with its proper effusion, which adhered strong- 
ly to the internal membrane; the external 
membrane was vascular and thickened, it had 
