282 The American Geologist. November, 1894 
The bills about Burk'e Falls are high, and if tbe submergence 
attained the hight which seems to be indicated by the depos- 
its, the ancient channels were deep, and varied in width from 
a half mile to three or four miles. Dr. Spencer puts the alti- 
tude of the submergence at this place conjecturally at 1,171 
feet. Steamers run from Burk's Falls to Ahmic Harbor, 40 
miles west, down the Maganetawan, but our limited time did 
not permit this trip. 
Sundridge. This place is situated on the north shore of 
Stony lake, which empties through Stony creek towards the 
southwest into the Maganetawan river. The lake is five or 
six miles wide, and it fills only part of the trough in which it 
lies. Near the station there are several light terraces and 
beach ridges of sandy composition ; and about a half a mile 
north there is a heavy glacial ridge, on the south side of which 
is a tolerably distinct shore line at about 100 feet above the 
station. On the slope below are several distinct terraces. 
This beach, like that at Huntsville, might be supposed to be 
of local origin, but it is also on one of those long inlets which 
connected with the wider water outside. 
6outh River. At this place we have crossed the divide to 
the region of the streams which descended the steep slope 
northward to lake Nipissing. Part of the drive from Sund- 
ridge was entirely above the level of the beaches of this 
vicinity and over unmodified drift. About a mile west of 
South River a distinct cut terrace was crossed at the foot of 
a steep hill. But it was so obscured by a heavy forest growth 
that the character of the ground in that vicinity could not be 
seen to advantage. There appeared to be a gradual slope, 
about a quarter of a mile wide, with occasional boulders and 
an appearance of low ridges. At its edge the road comes out 
upon a sand plain with dunes, and then descends through the 
ravine of a small stream. In this ravine the fine-bedded silts 
and clays again appear, and from this place to the town, half 
a mile distant, the road passes over the surface of a level 
sandy plain. Measured from the station at South River the 
altitude of the cut terrace is about 1,220 feet above sea level. 
At another point, about two miles south of South River, two 
terraces are found on a sand} r hillside at altitudes of about 
1,190 and 1,195 feet above the station, and on another isolated 
