56 



small Treatise* intended to accompany the Les- 

 sons on Mineralogy. 



* How to detect gold when adulterated, is particularlv ex 

 plained ; the book will be found useful to those who go on the 

 coatt of Africa, South America, China, &c. 



tr. ItDonaH, Printer, Pemberlon Ron, 

 Gongh Square. 



