98 



Prof. J. Prestwich. 



.1 1 



Number 



in 

 general 



ll si- 

 lls L, 



Table I. 



II 



Name of mine and place. 



III 



Nature of rock. 



IV 

 Depth. 







- " " 





£ eet. 







England — continued. 









22© 





Granite. 



876 





>> 



" 



Ol OA 





55 







2244 





55 







876—2124 





55 





•• 



876—2244 





19 





Slate. 



240— 3C0 





55 





Granite. 



1320—1380* 





55 







1 OCA 1 A AC\ 





122a 







2130 





20 



Huel Vor 



Slate. 



480—540 











780—840 





21 



Huel Damsel 



Granite . 



300 — 360 











840—900 









Granite and hornolendic 



1 1 9ft 









rocks. 







49/ 



Wheal Trenwith 



Slate. 



180 







" 



OOU 





mg 



South. Roskear, Cam- 





*7A9 





bourne.f 











55 5 5 55 55 





834 





49A 



,j North Roskear 





822 





4 9i 



Jiast ir ool ,, 



" 



Ol O 





49; 



w neal uny, Jxearutnj .. 





<±3t> 





49& 



,, Chace water, ... 





7oo 





49Z 



East Wheal Virgin Con- 



5, 



1500 







solidated Mines. 











•» 55 55 





1722 





49m 



„ Wheal lowan, bt. 4.gnes. 



» 







49w 



,, Wheal Prudence ,, 



„ 



654 





49a 



East Wheal Cro% .... 





480 







» 



810 





49£ 







1704 











1764 





49c 







1080 











1260 





49 a 



,, Great Wheal Fortune . . 





840 







55 55 





864 





