222 Value of Native Gold, ée. 
2°79d.; and in reference to the return of sales it was found 
that 21 lbs. 1 oz. Odwts. 12 grs. of mixed metal was valued 
at £960 5s. 3d., which is at the rate of 75s. 10°8d. per 
ounce: the value of the Standard Gold, however, is taken in 
this return at 77s. 9d., whereas in, the Tables it is calculated 
at 77s. 10°5d., or 13d. per ounce more. The value too of 
Standard Silver is taken at 604, whereas in the Tables it is 
taken at 602. Making allowances for these differences, the 
value of the mixed metal will be 77s. 0°4d. per ounce, which 
approximates very closely to that givenin the Table. From 
this it appears that Gold from California, having a specific 
gravity of 17800 or thereabouts, is inferior in value to the 
Standard Gold coinage of England to the extent of about 
1 shilling per ounce. 
With regard to the Sydney Gold, the data in my possession 
are not so precise as with reference to Californian Gold : they 
consist of account sales extracted from the Sydney ‘Mu orning 
Herald, and republished in the Courter newspaper of 17th 
March. From this it appears that eleven large pieces of Gold 
weighed before melting 4 lbs. 2 oz.; after melting 3 lbs. 6 oz. 
15 dwts. 12 grs., showing a loss of 7 oz. 4 dwts. 12 grs.* On 
assay these were found to be equal to 8 lbs. 7 0z. 17 dwts. 
9 ers. of Standard Gold. The quantity of Silver contained in 
these specimens is not given, but it may be got at by reference 
to the Table :—thus, 8 lbs. 7 oz. 17 dwts. 9 grs., at the tabular 
value of 77s. 103d., is worth a certain sum, but 3 lbs. 6 oz. 
15 dwts. 12 grs. of native Gold is of the same value,— 
therefore, one ounce of the latter will be worth 79s. 8°79d. ; 
and on reference to the Table the specific gravity of Gold 
alloyed with Silver, worth 79s. 8°79d., is 18255, and the 
quantity of Silver contained in an ounce 31°47 grains. 
* The loss in melting in this case amounting to 10:28 per cent. is so great as to create a 
doubt of the accuracy of the data, 
