40 PROPORTION OF THE TWO METALS. CHAP. XVI. 



which circulated in the form of coin. It would 

 indeed be desirable to attain to something ap- 

 proaching to accuracy, because the latter being 

 alone the standard by which all other commodi- 

 ties, including the former, are measured, its in- 

 crease or diminution might be inferred from the 

 rise or fall of prices. 



