MINING IN SOUTH AMERICA. 



cessarily increased ; and therefore that, far from 

 being able to get a greater profit from these mines 

 than was extracted by the Spaniards, it would be 

 impossible now to draw from them what they for- 

 merly repaid, and that many of them must con- 

 tinue deserted, for the evident reason, that poor 

 mines, as well as poor land, may be made pro- 

 ductive by a system of cruelty and tyranny, when 

 under a free government they must lie inactive and 

 barren. 



