300 ORIGIN AND DEVELOPMENT OF ORE-DEPOSITS. 



Class VIII. — The Older Caunters. 

 These are essentially copper lodes, but some have yielded 

 tin in depth, and probably all would do so if followed down 

 sufficiently, fcfo far they have only been definitely recognised 

 in the country between Truro and Penzance. I am disposed to 

 refer the following to this series : — 



Providence (Gwinear), Gaunter lode. 



Herland ,, Fancy Gaunter lode. 



North Eoskear, Gaunter lode. 



Dolcoath, ,, 



Garsize, ,, 



East Pool, ,, 



East Grofty, Longclose Gaunter lode. 



Wheal Prudence, Gaunter lode. 



Consolidated Mines, '' Elvan Slide " ? 



Class YII. — The oldest E. W. Tin and Copper Lodes. 

 These have often been worked to considerable depths, but 

 almost exclusively for copper, although their gozzans and some- 

 times their capels have yielded small quantities of rich and 

 highly crystallized tin ore. It is probable that all would prove 

 to be mainly tin lodes if followed down beyond 100 to 150 

 fathoms. 



The St. John^s Gozzan lode at Wheal Peevor, long ago 

 described by Mr. J. Williams, who states that it had been traced 

 for about a mile in length (Trans. Geol. Soc , London, Vol. IV, 

 p. 139) is apparently a typical example of this group. The 

 following additional examples may be placed here : — 

 Great St. George Mine, Galloway's lode. 

 United Mines, Bawden's lode. 

 North Eoskear Mine, Engine lode. 

 Fowey Consols, Gross-path lode. 

 ,, Bone's lode. 



,, Williams's lode. 



,, Trathan's lode. 



South Caradon Mine, Jope's lode. 

 ,, Clymo's lode. 



,, Main lode. 



,, Kitto's lode. 



