Mineralogy and Geology. 255 
in a measure identical with the horizon of the gold-bearing rocks from 
which the auriferous deposits of Eastern Canada have been derived. No 
gold has hitherto been met with, however, in the sands of the Kaminis- 
tiquia or other streams of Thunder Bay— Canadian Journal for Nov., 
1865. 
3. Notes on Wisconsin Drift ; by J.S. Buiss. (Communication, dated 
Door Creek, Dec. 4, 1864.)—Recently I took occasion to examine in Low- 
e 
drift movement. One was rough, for instance, on one side of the more 
of low land, is only covered by perhz ve or six feet of recent deposits, 
and where this is left bare, owing to the denuding action of the rains, is 
once the summit of quite a high elevation, and which must have been 
acted upon similar to the high hills and mountains of New En 
There is still another fact which I will mention. recent visit to 
nent feature. Small pieces of copper-bearing stone, like that of Lake 
Superior, is also found there. It appears, therefore, that small boulders 
found far down beneath the bed of Lake Michigan bear the same marks 
but has never been surveyed, so that its shape and size 
| wee ok. ® 
the angle where the narrow part of the lake opens out to the west 
mountain, which comes down with a precipitous et the 
est side, and to the southeast, volcanic materials and rocks oc- 
