PREFACE. Vll 



ance in our lead ores, and veins of native 

 silver in the copper ore of Muckrus, on 

 the lake of Killarny. The haematites iron 

 ores of Cumberland, and the beautiful 

 columnar iron ores of the forest of Dean, 

 are sufficient to display our riches in that 

 useful commodity. No country produces 

 so great a quantity of tin as Cornwall; 

 and that county, and several others in the 

 north, have been long noted for their inex- 

 haustible veins of copper : nor less famous 

 are the lead mines of Derbyshire, Cardi* 

 ganshire and Flintshire, which have been 

 worked for ages, yet shew no sign of the 

 decline of their stores. 



In all these, nature sports with great 

 luxuriancy ; the crystallized lead ore of 

 Tralee,* the fibrous lead ore of Tipper ary ; 

 the laminated lead ore of Lord Hoptouns 

 mines; the crystallized tins, and the figured 

 ores of Zink, are equally noted for their 

 elegance, scarcity, and richness* 



ty-seven shillings, and another even to the value of 

 three guineas. 



* In the county of Kerry. 



