202 : NOTES ON GLACIAL ACTION—-HONEYMAN. 
The mollusea of Halifax harbor are decidedly Arctic and 
Boreal.—/( Vide below.) 
The Intercolonial Railway traverses its western side and 
south as far as the Narrows and-Richmond. On its south side 
a branch line from Richmond extends to the cotton factory. 
This passes below Rockhead—the city prison. The cotton fac- 
tory siding runs up a hollow to the west of Rockhead. Through 
this passes the short roads from Bedford to Halifax. — Still 
further west is a deeper hollow. Through this passes the road 
to Dutch Village. It connects also the Bedford Basin with the 
North-West Arm. South of Rockhead, lies Fort Needham. I 
indicate these as they are connected with our investigations. 
Along the west and south sides of the Basin are large accu- 
mulations of drift. On the west these are well exposed in roads 
and railway sections. They consist of rock masses, large and 
small stones in great abundance. There are quartzites imbedded 
generally in quartzite debris which is used for road material. I 
have searched diligently in this drift for triassic and archaean 
boulders, such as those found on Navy Island, without success. 
I have been equally unsuccessful in finding such boulders in the 
drift in the road cuttings towards Halifax and Dutch Village. 
On the south side of the Basin I examined the sections on the 
shore, and also on the railway and cotton factory branch, with- 
out success. 
Great caution had to be exercised in this investigation from 
the circumstance, that we have here railway versus glacial 
transportation. A great proportion of the railway ballast was 
brought from Truro, from the banks of glacial drift, through 
which the Intercolonial railway passes. This drift is largely 
derived fram Archean rocks of the Cobequid Mountains. Out 
of this ballast stray boulders of syenites, gneisses, diorites, ete., 
are found on the shore and at the bottom of the drift cuttings. 
We have therefore to observe well, and reject all boulders that 
are not in the undisturbed drift. 
We consider that all the drift under examination is either of 
local origin or at the farthest can only have come from a dis- 
tance of 20 miles, the north side of the Cambrian quartzite band 
