(68) 
CONCLUSION. 
1 HAVE now accomplished the object, which I 
originally intended,—that of giving a short account 
of the Limestone of Plymouth, and of its principal 
contents, from the river Plym to that of the Tamar; 
comprehending a distance of about three miles in 
extent, from East to West. In this account, I have 
carefully avoided every thing like conjecture or hy- 
pothesis, and confined myself strictly to Facts; which 
‘appears, in the present instance, to be the only 
desirable line of conduct to be pursued: for, until 
a store of information is obtained, sufficient for a 
