Mines and Mineral Statistics. 137 
the 1st of January and the Slst of December, ISTl, 5,G74 tons 
18 cwt. of quartz raised from a mine 250 feet in deptli, and taken 
from a lode 2 feet 6 inches in thickness invested by hard blue 
rock, and requiring to be removed by means of blasting powder. 
This stone produced 3,158 ounces 3 dwts. and 0 grains of gold, 
worth only £3 7s. 6d. per ounce ; tlie average yield was 11 dwts. 
12 grs. per ton. The hardness of the investing rock and the 
narrowness of the lode necessitates an rmusually largo esi)endi- 
ture in working this mine, the entire cost of raising and crusliing 
the stone and extracting the gold is £l 11s. 2d. per ton; the 
value when obtained is £1 iSs. 3d., leaving a net pi'ofit of 7s. Gd. 
per ton. Keofs abound in every direction that, if eilicicutly 
worked, will yield from 5 to 10 dwts. of gold per ton. The Day- 
spring is a fair representation of the reefs in the district. 
COPPEE. 
The following is a general description of the collection of copper 
ores exhibited. 
[Fifteen samples, collected by Mr. W. Bryant, from tlie Cow 
Flat Copper Mine, near Bathurst, consisting of gossan variegated 
ore (eruhescite^, green carbonate of copper (rualachile^^ blue 
carbonate (azurite), and yellow sulphide of copper with galena. 
The samples were taken from near the surface and to a depth 
of 30 fathoms. 
Armstrong Copper Mine, near Bathurst, sixteen specimens 
collected by Captain H. K. Armstrong from surface to depth of 
45 feet — yellow sulphide, green and blue carbonates, red and 
black oxides of copper, yielding up to 35 per cent, copper. One 
specimen of green carbonate and red oxide of copper, with 
hydrous oxide of iron, gave on assay 35 per cent, copper, with G 
ozs, silver and 4 dwts. of gold per ton ; another, principally 
yellow sulpliide of copper, assayed 18'9 per cent, copper, with 
3 ozs. silver and 7 >i dwts. gold. 
AViseman’s Creek, near Bathurst, from Mr. Cunningham ; lode 
18 feet thick, shaft 100 feet deep ; blue and green carbonates, 
and yellow sulphide of copper, with galena ; assay 19 per cent. 
South Wiseman’s Creek Copper mine, near Batliurst ; lode 4 to 
20 feet thick, strike N. 21° AV., di]) Jiearly vertical 4 specimens 
from depths of 40 to SO feet— yellow sulphide ot copper with 
galena, yielding 28*8 per cent, copper, red oxide, green and blue 
carbonates, and grey and yellow sulphide of copper. 
Great AVestern copper Mine, Milburn Creek, near Bathurst, 
six specimens consisting of red oxide, yellow sulphide, green and 
blue carbonates of copper. Also six samples of the same 
varieties of ore from the Milburn Creek Copper Mining Com- 
pany, collected by Mr. J. Arkins, Mining Eegistrar. 
