MUSEUM OF PRACTICAL GEOLOGY. 
Mnmncnt School of iMfnes an# of Science applied 
to tlje Ms, 
ON THE 
VALUE OF AN EXTENDED KNOWLEDGE 
OF MINERALOGY 
AND THE 
PROCESSES OF MINING. 
(being the introductory lecture to the course of 
MINERALOGY AND MINING.) 
BY 
WARINGTON W. SMYTH, M.A. Cambridge, F.G.S., &c., 
INSPECTOR OF MINES TO THE DUCHY OP CORNWALL, 
LONDON: 
PRINTED BY GEORGE E. EYRE AND WILLIAM SPOTTISWOODE, 
PRINTERS TO THE QUEEN’S MOST EXCELLENT MAJESTY. 
FOR HER MAJESTY’S STATIONERY OFFICE. 
1852. 
