T O 
i 
* 
Richard Crawshay, £ sg ; 
OF CYFARTHFA IRON- WORKS, 
^^^0) in applying the Materials of Nature 
the Purpofes of Life and the Ufes of 
Society, has heft anfwered the Ends of 
Science, and advanced its Interefts: 
This work is dedicated, 
B Y 
HIS SINCERE FRIEND, 
AND HUMBLE SERVANT, 
WILLIAM TURTON. 
Afajr 21, 1800. 
