152 
A sample (I^o. 704) from the country rock adjacent to the vein was 
also assayed and gave— 
Gold . . . . Trace per ton. 
Silver . . . . 4 dwt. 14 gr. per ton. 
On the north end two shafts have been sunk. The north shaft is 
9 ft. deep on a 6-in. vein, which dips 50° west. The second shaft is 
6 ft. deep on a 6-in. vein, which carried gold at the surface, but a 
sample taken from the bottom of the shaft gave no gold and silver. 
Twenty chains to the south-east of these shafts another vein 18 in. 
wide has been opened to a depth of 3 ft. A sample (I7o. 705) taken 
from this vein assayed— 
Gold . . . . 3 dwt. 14 gr. per ton. 
Silver . . . . 2 dwt. 23 gr. per ton. 
The veins improve in value going south-east and further prospecting 
in that direction may prove an extension of them. Where first opened 
up to the north they are just on the junction of the granite and the 
Ordovician beds, hut to the south-east they pass into the granite. 
All the samples were taken from oxidized veins. With depth the 
veins will become pyritic, and probably carry lower values. 
[13.10.10.] 
AKCHEK’S WOLFEAM MIISTE, ITOIGO CKEEK. 
By J. P. L. Kenny, Assistant Field Geologist. 
Archer’s Wolfram Mine is situated in the Indigo creek basin; its 
definite position being 15 chains E. 17° S. from the north-west corner 
of allotment 4, parish of Barnawartha 'South, county of Bogong. 
The lode occurs in a schistose area of metamorphosed Ordovician 
rock. The schist is penetrated by a pegmatite (quartz, felspar, and 
muscovite) vein, which strikes 1^. 40° W., on the walls of which is 
the lode, consisting of quartz carrying auriferous arsenopyrite and 
wolfram. At the time of my visit two cuts 20 ft. apart had been opened 
up on the lode. The south cut showed the pegmatite vein 2 ft. with 
8 in. of quartz, carrying wolfram, on the east wall and 15 in. of 
quartz with wolfram on the west wall. 
Samples were taken and assayed by Mr. P. G. W. Bayly, at the 
Geological Survey laboratory. The 8-in. vein on the east wall assayed— 
Sample No. 699— 
Gold . . . . Trace per ton. 
Silver . . . . 1 dwt. 15 gr. per ton. 
Tungstic acid (M^Og) 10.08 per cent. 
A sample taken from the pegmatic vein gave a trace of gold and silver 
and tungstic acid nil. 
A sample taken from the 15-in. vein on the west wall assayed— 
Sample No. 701—• 
Gold . . . . Trace. 
Silver . . . . Trace. 
Tungstic acid . . 22.94 per cent. 
