308 The American Geoloffist. May, 1895 
inch per mile more than the rise of the Nipissing beach 
elsewhere. But this rate of rise would be slightly less if al- 
lowance were made for difference between the relation of a 
cut terrace and a bowlder beach ridge to the former water 
level. 
The "sea-clitfs" and "palisades" recorded at the localities 
southwest of Grand Marais and the spits at Beaver Bay and 
other places along that shore agree with the supposition of the 
recent backing up of the water at the west end of the lake. 
The bases of some of the cliffs, like the Palisades and the Pic- 
tured rocks of the south shore, probably stand at the level of 
a heavy wave-cut below the Nipissing beach and not at that 
beach itself. The evidence that there was a heavy wave-cut 
at a lower level before the time of the Champlain uplift has 
been discussed in the paper on the second lake Algonquin. 
The next six localities are close together. 
Series 17. Grand Portcifje. From a higher terrace "the ground drops 
steeplj' to the level of the terrace on which the village is built. This 
drop represents a sea-clitf which is one of the most striking shore fea- 
tures of Grand Portage. The terrace which extends out from its base is 
37.9 feet above the lake." 
Series IS. Mwnt Josephine. "At the base of the hill is a boulder 
beach the crest of which is 43 feet above the lake " 
Series 19. Wausicaiujoning B(ty. A beach ridge of coarse red shingle 
at 43.7 feet. 
Series SO. Near Bircli, Mand. Beaches at 17.4 and 21 feet. Nipissing 
beach apparently not found. 
Series 21. Pigeon Point. Beaches at 75.0 and 56.0 feet. Lower levels 
heavilj' timbered and not e.xamined. 
Series 22. Pigeon River. Terraces at 00. S and 18.2 feet. Ni[)issing 
beach not observed. 
Series 23. McKeUar's Point. Terrace with rear at 48.4 feet and a 
beach ridge at 30.3 feet. This is about 15 miles northeast of Wauswau- 
goning bay: and it therefore seems probable that the terrace, and not 
the beach below, is of Nipissing age. 
Series2J^. Thompson Island. Beaches at 97 and 28.7 feet. Nipissing 
beach apparently not observed on the east end of the island. Here and 
jirobably at some other places the Nipissing beach may have been re- 
moved by a heavy wave-cut at a lower level. At another place on the 
island a series of caves are developed on the vertical side of a dike. 
Their floor, taken to be about at the former water level, is 45.0 feet. 
Series 25. Shore opposite Flat Jsland. Inroad terrace at 45.3 feet. 
Series S6. Above Carp River. No report at low levels. 
Series 27. Carp River. "Well defined beach"' at 33.8 feet. Above 
