Nipissing Beach on the JST. Svperior Shore. — Taylor. 309 
this "another great beach of perfect form at an elevation of o2.1 feet." 
Rising immediately from the present shore line there is a rolling suc- 
cession of small, ill-defined gravel beaches. These indicate "a gradual 
recession of the water." This is about 13 miles north of McKellar's 
point, and the upper beach is probably of Nipissing age. 
Series 2S. Pie Island. "A broad terrace" "abuts against a talus of 
groat angular blocks of trap." Hight 43.5 feet. 
Series 29. BruU Point. Beach at 34.7 feet: not Nipissing. Abroad 
terrace, part of the Kaministiquia delta, extends far inland. At 14 
miles its surface is about 55 feet above the lake, it is composed of clay 
capped with sand. The capping of sand is probably of Nipissing age * 
Doubtful whether the beach is of Nipissing age, but the delta may be. 
Series 30. Kaministiquia. No report at low levels. 
Series 31. Port Arthur. Broad terrace at 61.4 feet. Port .Arthur is 
10 miles north of Carp river, but it is doubtful whether this terrace is of 
Nipissing age. 
Series 33. MeKenzie. No report at low levels. 
Series 33. East Side of Thunder Bay. Terrace at 57.5 feet. 
Sei-ies Sit. Back of Thunder Cape. Terrace about 100 feet wide at 49.6 
feet. 
SeriesoS. Silrer Met. Between present storm beach and one at 39.3 
feet "there are no less than nine distinct well formed shingle beach 
ridges, rising one above another on a gentle slope." "This portion of 
the series clearly indicates a gradual recession of the lake, from the 
stage at which the 39.3 feet beach was built down to the present level." 
This is nearly always a safe inference. It is not to be in- 
ferred, however, as contrasted with this, that adjacent slopes 
at the same horizon, but without such beach series, emerge 
suddenly or haltingly. Such evidence is generally good in a 
positive sense, but its absence is not equally safe in a negative 
sense. There is also a terrace here at 59.2 feet. This place 
is ten miles south of series 33. Still it seems more probable 
that the upper strand, rather than the lower, is of Nipissing 
age. From this on to Sault Ste. Marie the points of observa- 
tion are few and generally far apart. 
Series 36. Nipiyon. Terraces at 89.8 and 82.2 feet. This place is 
about 43 miles northeast of series 33. It seems probable that the higher 
terrace is the Nipissing beach. 
Series 37. Mazokama. Terrace at 98 feet. 
Series 38. Simpson Island. Broad terrace with steep sea-clitf back of 
it at 92.7 feet. Well shown by a profile cut. 
Series 39. Winston's. No report below a delta at 210 feet. 
Series Jfi. Schreiber. No report below 391 feet. 
*The lower part of this delta is described on pages 210 and 211 of 
Prof. Lawson's report. 
C 
