L 4- (6 '] 
tar, as I am informed, is compofed ; and all the con- 
ftituent pieces are cemented ftrongly together with 
a brownifh-coloured calcareous cryftallization, or fta- 
lactite. Where the interftices are large, there are va- 
cant fpacesj and the furfaces of all fuch cavities are 
covered with granulated cryftallization about 4. of 
an inch thick. 
This cryftallized cruft, no doubt, was depofited 
from the water palling through the cavern in which 
the bones had been lodged ; and by foaking through 
the porous fubftance of every bone, the water had 
likewife depofited a cruft of the fame nature, but 
much thinner, on all the internal furfaces of the hol- 
low and fpongy bones. The bones were not in any 
other fenfe petrified. 
I am. 
Dear Sir, 
moft faithfully yours, 
William Hunter. 
XXXVI. £>#- 
