PREFACE. ix 



In 1770 he returned to Sweden, and was 

 received Afleffor in the Royal Department of 

 Mines ; but foon after fet out again for 

 Germany on the fame errand as before, 

 and which afterwards led him to Italy. 



Baron Inigo v. Born, Counfellor of the 

 Royal and Imperial Mines in Bohemia, then 

 Jiving at Prague, had been acquainted with 

 him in his firft journey to Germany, and 

 feized the opportunity of this fecond excur- 

 fion with that generous warmth which has 

 made him one of the moft learned and moft 

 liberal promoters of Mineralogy. Having 

 formerly communicated to his friend very 

 mftructive and entertaining accounts of his 

 own mineralogical travels to the Hungarian 

 and Tranfylvanian mines, he now prevailed 

 on Mr. Ferber to make him a fuitable return 

 for them by accounts from Italy, whither he 

 went in the latter end of 1771, after having 

 made repeated and very interefring examina- 

 tions of the Bohemian mines. 



This occaiional acquaintance of our au- 

 thor with Baron Bom proved a great advan- 

 a 4 tage; 



