105 



to occur native in the metallic state ; and it is more likely that the 

 ore in question occurred in the form of Kupfernickel, Copper 

 Nickel, Nickeline, or Nickel Arsenide. Further information, on 

 this point is very desirable. 



Smaltine, Cobalt Diarsenide, has been recorded from Force 

 Crag Mine, Keswick, where it was associated with Manganite, 

 Tourmaline, Stoltzite, and several other minerals of interest. Mr. 

 Ward makes mention of Cobalt as occurring in small specks in a 

 quartz-vein between Sail Crag and Scar Crag, west of Derwent- 

 water ; but I have not yet been able to discover whether the 

 particular form of Cobalt ore referred to by Mr. Ward belongs to 

 this species or not. 



(ii.) The next subdivision, or compounds of the Metals with 

 the Thionids, includes some species of considerable importance. 



Argentite, or Silver Sulphide. Assuming that the view is 

 correct that the silver obtained from our argentiferous galena 

 occurs in the form of Argentite, which is isomorphous with Galena, 

 its proper place in the list should be here. But as the presence of 

 silver in this form is only inferred from analogy, no description of 

 our specimen is possible. 



Some idea of the importance of this mineral production may 

 be gathered from the fact that in the year 1880, when our mines 

 were not much worked, no less than 24,998 ounces of silver were 

 raised in Cumberland and Westmorland alone. 



Copper Glance, Redruthite, or Copper Sulphide, is mentioned 

 by Townshend Hall {op. cit.) as occurring in Cumberland ; but 

 the precise locality, mode of occurrence, and local form are not 

 mentioned. I have not seen a specimen of this mineral from our 

 district myself. 



Some time last year a notice went the round of our local news- 

 papers to the effect that Cinnabar, or Mercury Sulphide, had 

 been discovered somewhere or other out Caldbeck Fells way. 

 There is, of course, no valid reason why this important orQ of 



