46 GEOLOGY OF HALIFAX AND COLCHESTER CO'S—HONEYMAN. 
important leads have been found to end, e. g., Hattie lead, Wine 
Harbour, and attempts to find a continuance downwards have 
been fruitless. There was no passage from the regions below. 
I have yet to notice a very interesting locality in Colchester 
County. On the south branch of the Stewiacke River Cambrian. 
quartzites are observed, having a very interesting gold vein. The 
quartzites are grey and contain numerous cubical crystals of 
pyrites. This is traversed by a vein of auriferous quartz, which 
measures one inch and upward. This vein is crystalline 
throughout. These crystals are often arranged in geodes. One 
in my possession has numerous long six-sided prisms with 
pyramidal terminations clear as crystal. Another has crystals 
with gold projecting from a crystal. There are no fewer than 7 
sights of gold in a piece not more than an inch square where 
distinct crystals are seen crossing and recrossing from either 
quartzite wall. In another small specimen the vein goes into 
corners, the gold following. I cannot conceive anything more 
conclusive in support of the Hydrothermal Theory of the pro- 
duction of auriferous quartz veins. The veins seem to be too 
small for working. 
ADDITIONAL OBSERVATIONS. 
In our extensive collection in the Provincial Museum, which 
is representative of our principal gold fields, I find a specimen 
from Wine Harbor, which tends to confirm the view which I am 
illustrating. This is a piece of quartzite traversed by a quartz 
vein very rich in gold. This vein is so thin that it can scarcely 
be measured. It could only have been filled by capillary attrac- 
tion. I find also several specimens of large size from Isaac’s, 
in which the gold is in calcite, having skhewn tboidal) cleavage. 
There seems to be no reason why every quartz vein in our 
Lower Cambria should not contain gold. Yet itis a fact that 
only certain veins, even in known gold fields, contain the precious 
metal. 
In the Yarmouth and Digby great coast section there is any 
number of quartz veins, large and small, exposed in the best 
manner possible for observation. I have examined them care- 
