&ILVER coiisrs. 401 



1. An English half-crown. It was a coin of Charles. 11, English half-' 



12, cop= 



dated 167I, and was one of the beautiful pieces coined ''y s5iW " 



Simeon. It weighed 220.5 grains, and had of courie sustained per J 

 a loss of 1 1 grains. 



Muriate of silver, 267.51 gr. =201.23 silver 



Copper »•••• • 17.00 



Loss, including a trace of gold 2.27 



220.5 



2. A French half-crown. It wjis a coin of Louis XV. dated French half- 

 1761. It weighed211.5 grains. SUv^'io, cop. 



per 1. 

 Silver obtained by reducing the muriate 190.5 grains 



Copper 19.2 



Gold • 0.3 



Loss • 1.5 



211.5 



3. A rupee. It was brought from India by Mr. Philip Rupee: 



Dundas, and given me by his nephew, Mr. Colt. It weighed ^^'^^'' ^^f, cop, 



' » J r ' o per 1. 



178 grains. By an accident, the glass containing it was over- 

 turned and broken soon after the solution in nitric acid began. 

 When washed and dried, the rupee still weighed 152.5 grains. 

 It was this portion only that was analysed. 



Silver reduced from the muriate 146.5 grains 



Copper 4.5 



Loss, including some gold 1.5 



152.5 - 



4. A Spanish pisterine. It was a coin of Louis L and dated Spanish piste- 



1724. It was brought from Spain by Mr. Farquharson, of""^' ., 



■ ° r J n J bilver 0^, cop- 



Haughton, nom whom I obtained it. It weighed 85.5 grains, per l. 



Muriate of silver* • • .94 gr.=:71 silver 

 Copper 13 



Loss, with a little gold ••••1.5 



. 85.5 

 Vol. XIV.— Supplement. Fff 5. A 



