vi PREFACE. 



the mines and fmelting-places in Sweden, 

 and travelled, from the year 1768 to 1773* 

 through Germany, Holland, Switzerland, 

 France, England, Bohemia, Hungary, and 

 Italy, in order to enlarge and rectify his 

 ideas, and to gather that various inftruction, 

 from the learned and A the unlearned, from 

 Philofophers, Chemifts, Miners, and Smel- 

 ters, which the improved culture of thofe 



countries offers to the obferver. 



. 



He made at feveral times a long ftay in 

 Germany, the beft as well as the moft an- 

 cient fchool in Europe for miners and me- 

 tallurgifts. The old rich mines of the Hartz- 

 foreft, with its furnaces,, feemcd to him 

 remarkably inftructive in their nature, and 

 in the wife oeconomy by which they are 

 conducted and regulated; and, indeed, there 

 are but few mines, which, on that account, 

 will bear a comparifon with them. 



The very ufeful Academy for Miners ac 

 Freiberg in Saxony fatisfied and inftructed 

 him. The arts of mining, furveying, work- 

 ing, and fmelting, are taught there, by able 



raafters, 



