Value of Native Gold, dc. 219 
Quantity of Quartz 1°41 grains. 
26. Large specimen from Mount Alexander, 
Grains. 
Weighed in air .......ceeecereeee 1311°06 
Weighed in water ...scoccseseees 1219°81 
Difference jecccccccssoccseee 91°25 
1311:06 » 1900 = 14367 Sp. Gr. 
2s 
Quantity of Quartz from Table, 60°22 grains. 
27. Specimen from Mount Alexander. 
Grains. 
Weighed in aif .....scesseeseeeee 963°935 
Weighed in water ..........e00e 899°12 
Difference rscccccccccsrsece 64°815 
963935 
X 1000 = 14872. 
648195 
Quantity of Quartz from Table, 37°05 grains. 
28. Five small pieces of Gold from Mount Alexander, apparently 
clean and free from quartz, 
Grains. 
Weighed in air......cecsseseessesee 300'L 
Weighed in water .........se00e 34423 
WD TETCHCC)s-ccssccceecieceecssce | DUST 
365°1 ; 
“30-87 X 1000 = 17494 Sp. Gr. 
Weight of Quartz by Table, 2°92 grains. 
These same specimens on being fused in a crucible, and 
when the slag which adhered to the button was removed, 
weighed 361°625, the difference, 3°475, being the actual 
amount of the impurity contained in them. The specific 
gravity of the metal being 18688, instead of 18300, will 
explain this difference. 
29. A quantity of Gold-dust well cleaned, 
Grains. 
Weighed in aif...csscccesosssersese I60'43 
Weighed in water cecccsssssseere 905" 
Difference .rescoscorrssssere 809'43 
960°43 
X 1000 = 17337 
55°43 
gn 
