Rule I.: The Mint or Market Value of a given Weight of allayed or fine Gold, being divided by the Mint or Market Value o

For Instance. A Pound Weight of Standard Gold is cut into 44 Guineas and a Half, and each Guinea passing for 21s. the legal or Mint Value of the said Pound Weight in England is 934.5 Shillings and the Value of a Pound Weight of Standard Silver is 62s. but 934.5 divided by 62, gives 15.072. Therefore the Proportion of the Value of Standard Gold to Standard Silver is 15.072 to 1.

Again. To find the Proportion of the Value of a Pound of Gold in Coin, to a Pound Weight of Silver in Bullion, supposing Silver in Bullion to be worth 66 Shillings a Pound Weight at Market; let 934s. .5 the Value of a Pound of Gold in Coin, be divided by 66, and it will give 14.159. Therefore the Proportion of a Pound of Gold Coin to a Pound Weight of Silver at Market is 14.159 to 1.

And by the same Rule the Proportion of the Value of any Sort of Gold to any Sort of Silver, knowing their Allays, may be found.

The English Values of foreign Gold and Silver Coins may be found by these Rules.