28 



REMARKS 



O N 



T H E 



STRATA. 



From the above accouat it appears, I think, evidently, that all 

 the tropical high ifles of the South-Sea have been fubjed to the ac- 

 tion of vokanos. This is ilirongly confirmed by the adual ignivo-- 



mous mountanis, \\ 



hich v^'e obferved at Tofoba, Ambrrym^ and 



Tanna^ 



/ 



Pyritical and fulphureous fubilances, together with a few iron- 

 ftones and fome vefliges of copper, are no doubt found in feveral of 

 them : but the mountains of New-Caledonia are the moil likely ta 

 contain the richefl metallic veins j and the fame opinion, I fufped:, 

 may be formed of the mountains in New Zeeland 



lie fubflaaces, in all the other volcanic illes are 



and fcorified by the violence of the fubterrane 



For the metal 



probably deftroyed 

 )us lire : thofe in 



New-Caledonia and New-Zeeland feem to be as yet undifturbed, as 

 the fpecies of foffils prevailing in thefe two ifles are fubftances, 

 which mineralogifts have hitherto looked upon as primogenial, m 

 which all the metallic, veins * on our globe are conftantly found. 

 We can offer nothing befides this general, but probable, conjedure; 

 as our fliort flay, and the multiplicity of other bufinefs, prevented 



from enquiring more minutely into 



of the foffil pro 



dudlions of thefe illes 



fr 



* I fpeak of veins ©uly, and not of fiatt-work or floors, wHch contain Ukcwife fometimes 

 ^letsUic orcs^ br^t have an origin different from that of the primogenial moimtams. 



IV. MOUN 



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