124 The American Geologist. August. 1897 
the upper beaches of Terrace ba}'^ were seen from tlie railroad 
track east of Schreiber. 
Jackfish Bay. At this place and around the point about 
two miles east of Jackfish station, the old shore lines were 
found in magnificent form and all substantially as described 
by Lawson. The Nipissing beach appears here in one of its 
strongest types — a wide beach-plain with numerous beach 
bridges nearly at the same level. At Jackfish this long-lived 
lake shore is probably represented by Lawson's beach series 
between 85 and 110 feet above the lake, With the limited 
time at my disposal at this place I was unable to determine 
which beach stands for the upper mark of the Nipissing, but 
it seemed to lie between those at 103 and 110 feet. East of 
the point it was also difficult, from what I saw, to make out 
the exact upper level. Here, too, the beaches form a great 
ridged plain and appear to have been built almost wholly with 
material brought from the east where a great terrace at a high- 
er level has been cut away at the Nipissing and lower levels. 
The most prominent ridge on the plain and forming the front 
edge of a slightly higher plain than that which lies in front 
of it, is about half way between the railway track and the 
cabin of Duncan Maclntyre. The higher ridges of this series 
are often bouldery, especially on their inner or rear sides. In 
one place the boulders are four to six inches in diameter and 
they lie nearly two feet deep with no filling between them. 
The beach-plain back of this prominent ridge is very ridgy 
and uneven, with some marked basins, almost a pitted plain 
in some places. This area is a counterpart of the Nipissing 
beach-plain at Rogers City, Michigan. Ten miles east of Jack- 
fish there is a fine series of beaches belonging probably to the 
Nipissing. Three miles west of Caldwell there are beds of 
white silt capped with sand at about 250 feet above the lake. 
Peninsnla Harbor. This place is at the extreme northeast 
angle of lake Superior. Lawson visited it, but made no meas- 
urements, on account of fog. I found the top level about two 
and a half miles back from the lake on the south side of an 
emba3^ment, the valley of a small river that enters the lake 
north of the station. The whole slope has been burned over 
and the features of the ground are not much hidden by lat- 
er growth. The deposit which covers the slope appears to be 
