xx AUTHOR'S PREFACE* 



hiftory or ceconomy. But for this purpofs 

 expenfive books arc required, and money is 

 very neceflary for the voyage ; on proper oo 

 cafions, I have expended not only my falary, 

 but the voluntary contributions of my protec- 

 tors, whofe munificence will always make the 

 ckepefl imprefhon on my mind. 



Stockholmty 

 2(fi\ of Airily 1757, 



OS BECK'S 



