specific Gravity , and comparative Wear of Gold. 103 
TableI. (continued.) 
Gold variously alloyed. 
car grs. 
Gold. 23 31 - 
Antimony 
oz, dts. grs. 
O 18 10 
o 1 14 
Gold, 23 sl- 
Antimony 
Copper 
o 18 10 
o o 19 
o o 19 
Gold, 23 31- 
Copper 
Antimony 
o 18 10 
016 
008 
Gold, 23 31 - 
Copper 
Antimony 
o 18 10 
o 1 10 
004, 
Gold, 23 31 - 
Copper 
Antimony 
o 18 10 
o 1 13-1 
o o Oi 
Specific Gravity. 
16,929. 
17A47- 
17,238. 
17,169/ 
1 7 ’° 73 - 
The preceding experiments afford some remarkable results, 
produced in the specific gravity of gold, by the addition of cer- 
tain metallic substances in various proportions ; but, as these 
results are sufficiently pointed out in the subsequent pages, it 
would be superfluous to enter into a recapitulation of the whole. 
The effects, however, produced upon gold by lead and bis- 
muth, are peculiarly worthy of notice, not only on account of 
the alterations in specific gravity, but also from the remarkable 
similarity of the effects of these two metals, when employed as 
alloys in proportions relatively equal. This will appear more 
evident by the following comparative statement. 
* 2.7 grs. of the antimony were lost by melting. 
