Callous Tumour. 293 
«* the bone was of the same kind, it adhered 
firmly to the surrounding parts, which were 
thickened and consolidated, rendering it 
** very strong. The two ends of the bone 
“« were adapted to each other, all their irregu- 
** Jarities. having been absorbed, and their 
‘“* surfaces were of considerable extent from 
“ the fracture being oblique. The surfaces 
‘© of the bones were fitted for motion, were 
** not completely covered with cartilage, but 
*¢ studded over with it, and the bone was ex- 
‘< posed in the interstices.” 
When the necessary effusions are well got 
over, another process, whose circumstances 
may be sufficiently gathered from what has 
been said takes place, viz. the organization of 
the tumour. The thickening of the external 
membrane, its increased vascularity, and the 
manner it assimilates itself to its effusion ; the 
increased vascularity of the surrounding soft 
parts, and their adhesion to the tumour, shew 
from whence it is pervaded by blood vessels. 
The manner the bone is studded with bloody 
points upon tearing away its external cover- 
ing shews that the bone itself is more vascular, 
and by inference, that the inner membrane is 
so also. A vascularity sensible to the eye 
first takes place where the bones overwrap, and 
two portions of external membrane touch, 
n~ 
n 
n 
nw 
