5 Bo • Mr. cheston’s Continuation of 
motion, had been ufed which could have feparated this 
matter from what remained adherent to the bone, it is 
highly probable it was ever deponted in, and difperfed 
through, the tumor in a detached date. 
The tumor, externally, bore the ufual appearances of 
a difeafed or enlarged gland ; but, by degrees) as I had 
opportunities to obferve upon changing the water) the 
whole appearance was changed, and the boney matter, as 
the maceration proceeded, feemed furrounded by a 
hard, white, and rather tranfparent fubftance, not much 
unlike fuet, in which date it principally relifted the dif- 
folvent power of the water. 
When the bone in general feemed fufficiently cleanfed 
for drying, I found in one part fome remains of this 
fnety fubftance ; but as I was unwilling to continue the 
whole in water any longer for the fake of this fmall por- 
tion, and thought beftdes that in its drying I might get 
fome infight into its nature* I> expofed, it to the open air, 
and was furprized to find that in the courfe of three days 
it was intirely diflipated, fcarcely a trace of it remaining* 
unlefs that, in the particular portion alluded to, the boney 
matter w r as of a more dufky colour than elfewhere. 
I had now the fatisfacftion to find the attention and 
care bellowed upon the bones during the maceration 
amply repaid by the lingularities which they prefen ted., 
3. The. 
