378 The American Geologist. December, \ms 
the vicinity. It was al)out the shores of these lakes that most 
of the details given below were observed. The description of 
the phenomena about Wilder lake is from the notes of N. H. 
Winchell* and the phenomena here are characteristic of the 
whole area. 
At Wilder lake there is no visible drift, or nearly none, 
except such as is referable to the gabbro. There are fine ex- 
hibitions of the process of making bouldeis of disintegration, 
some blufifs being in the process of decay but retaining un- 
decayed, rounded, boulder-like masses 'from two to six feet 
in diameter, the surrounding rock being so rotted that it can 
be picked to pieces by the fingers. There is no show of ice 
action, and the rock everywhere is superficially cruiubling. 
There is not a total absence of transported drift, but only very 
rarely a boulder of granite which also shows the disintegrating 
action of age. The gabbro blufifs do not look clean and smooth 
cut, but are falling down in situ, the joints being worn out so 
as to produce little channels in which water runs down to the 
lake. Old weathered surfaces are pitted with holes of all sizes 
up to those of a hen's ^^%. On the tops of the hills is a thin, 
often gravelly, soil produced by the decay of the gabbro. The 
whole of Wilder lake, from its eastern to its western end, has 
these characters. Throughout this distance, although the rocks 
are bare much of the way along the shores, not a glacial scratch 
nor a glaciated surface could be seen, although special notice 
was given to this feature. At the west end of the lake, in sec- 
tion 33, T. 63-8 W., one apparently moutonneed surface was 
seen, but it had no striae. In passing further west the rocks 
assume a more preserved condition and occasionally a rounded 
surface appears, and at the entrance to the main Kawishiwi 
river in the southern part of section 30, T. 63-8 W., are glacial 
striae. Still further west such surfaces are more and more 
common, and finally every surface facing toward the north is 
striated, and all the rock is hard and fresh. 
In making a section from north to south through the area 
in question the following facts were noted. On the portage, 
between a pond near the northeast corner of section 20, T. 64- 
6 W., and the lake in the southern half of the same section, are 
*Loc. cit. 
