Callous Tumour. 285 
thrown out only a very slight effusion; the 
soft parts near this part of bone were less 
diseased than those in the neighbourhood of 
the lower portion. 
Exp. 9. One hundred and four hours after 
fracture.—The animal refused food, and be- 
came dull and languid after the injury.. The 
soft parts in general were diseased; there 
was little extravasation of blood or effusion of 
bloody serum ; the fracture was very oblique, 
and a portion of muscle interposed betwixt 
the overwrapping bone. ‘The face of the su- 
perior fractured part was only partially co- 
vered with effusion; its external membrane 
was inflamedand thickened, and had thrown 
out a slight effusion of coagulable lymph in 
its immediate neighbourhood. ‘The lower 
portion lay immediately under the skin, was 
only partially covered by effusion from the 
inner membrane ; the external membrane was 
diseased, and easily separable from the bone, 
_and had throwu out no healthy effusion. __ 
_ Exp. 10. One hundred and eighty hours 
after fracture—There was no feeling of tu- 
mour upon examining externally. The soft 
parts surrounding the injury were highly dis- 
eased ; and a considerable watery effusion 
was found in the cellular membrane; there 
was no effusion of coagulable lymph from the 
