260 MINERALS FOR THE PARIS EXHIBITION.—GILPIN. 
Samples of similar ores are shown from St. George's River, 
Eagle Head and French Road, in the same County. 
In Antigonish County the traces of copper ore are wide 
spread. At some points prospecting work has given promising 
results, but as yet the various licenses to search have received 
little attention. 
A sample of copper ore from St. Joseph’s is from a bed of 
mixed chalcopyrite and shale in lower carboniferous strata close 
to their junction with precarboniferous rocks, presumably of 
lower silurian age. There are about eight beds, reported to be 
from two to six feet in width The following analysis of a 
sample from the No, 2 vein is by the Geological Survey Depart- 
ment: 
Copper se sers aces cess 12 (.OONMMOIstire 2...) sete re 
PON oo cde de Me. cece s £2970 Carbonate of Lronts aa 6 20 
SSCA INUT oie tie tancuchecaret's 33.50 ——— 
POG Penielate ove: Bes SAK Sega. 100.00 
At Polson’s Lake somewhat extensive development work has 
shown, in Devonian strata, beside a dioritic dyke, a large mass 
of carbonate of iron and cale spar carrying copper pyrites. The 
ore is stated to average from 9 to 16 per cent. of copper, and to 
carry several dollars’ worth of gold and silver. On the opposite 
or west side of the Lochaber lake, similar but richer ores occur 
in numerous veins with spar and specular iron. Exploratory 
work done here a number of years ago was fairly promising. 
In addition to these deposits, carbonates, sulphides and 
silicates of copper are not uncommon in the carboniferous shales 
and sandstones in irregular masses, frequently rich, but limited 
in extent. Further work may, however, show localities where 
this class of deposits will reach economic values. 
In Pictou County similar ores occur at a number of places in 
the permo-carboniferous and in the miilstone grit and lower 
carboniferous. Traces of copper sulphide also occur in the 
district forming the water shed between the Bay of Fundy and 
