, ADVERTISEMENT. vii 
logy for himfelf. Though he is not 
aware of any error in the Iketch of 
the Natural Hiftory of Cornwall, which 
is given in the following work, that 
fketch would certainly have been more 
full, and it might have been more exaCt, 
if the Author had had the benefit of 
feeing the country, the minerals of 
which he defcribes. As he was with¬ 
out that advantage, he has been obliged 
to depend upon the relations of others, 
and his own collection of Minerals. 
But both of thefe the Tranflator has the 
bed; reafon for believing have been re¬ 
markably accurate and complete. If, 
however, there Ihould be any imper¬ 
fection in this part of the Author’s 
work, he is confident it has been un¬ 
avoidable, and cannot therefore be im¬ 
puted to the Author as a fault. 
Ht 
Sf 
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