460 



PLEISTOCENE OF INDIANA AND MICHIGAN. 



On the south shore of Lake Superior the altitude of the Nipissing beach has been determined 

 by hand level by Mr. Leverett and the writer as follows: 



Altitudes of Nipissing beach on the south. 

 [By hand level except as indicated.] 



Sault Ste. Marie 



Iroquois Point 



Grand Marais 



Munising 



Marquette 



L'Anse 



Lac la Belle 



Eagle Harbor 



Copper Harbor 640 40 Leverett. 



Houghton 626 26 Taylor. 



Portage Canal, north end a 630 30 Do. 



Ontonagon 616 16 Leverett. 



Bayfield, Wis 



On the north shore Lawson measured the altitude of the Nipissing instrumental^ in many 

 places, but did not recognize the beach from place to place. Nevertheless, by the characters 

 which he described it is possible to identify it with a fair degree of accuracy at most of his 

 localities. 1 The writer afterward visited a number of Lawson's localities and verified previous 

 interpretations by further studies of the characteristics of the beaches between Fort William 

 and Peninsula Harbor which had been judged to be the Nipissing. 2 The beach seems well 

 identified at the following places, some of which were determined by Mr. Leverett in 1911: 



Altitudes of Nipissing beach on north shore of Lake Superior. 



Beaver Point, ordinary beach o 



Envies Cove, storm beach a 



Cove near Baptism River, storm beach a . . 



Kennedys Cove, ordinary beach a 



Little Marais, ordinary beach a 



Little Marais, storm beacha 



Pork Bay, ordinary beacha 



Thomasville, ordinary beach a 



Thoniasville, storm beacha 



Cross liiver, ordinary beacha 



Cross River, storm beach a 



Lutzen by Poplar River, ordinary beach a 



Lutzen, storm beach o 



Carbou Point, ordinary beacha 



Carbon Point, storm beach a 



Good Harbor Bay. ordinary beach a 



Grand Marais, ordinary beach a 



Grand Marais. storm beach « 



Red Cliff camp, ordinary beacha 



Horseshoe Bay 



Chicago Bay, ordinary beach a 



Chicago Bay, storm beach a 



Grand Portage 



Mount Josephine 



Wauswaugoning Bay 



McKellars Point.... 



Carp River 



Pigeon Point 



Port Arthur 



Mazokama 



Simpson Island 



Terrace Bay 



.Taeknsh Bay 



Peninsula Harbor & 



" By hand level. & By aneroid. 



If rightly identified the altitude of the Nipissing beach is the same at Mazokama as at North 

 Bay, and is therefore on the isobase at the former place. The nearest strand to the Nipissing 



1 Taylor, F. B., The Nipissing beach on the north Superior shore: Am. Geologist, vol. 15, 1895, pp. 304-314. This is a study of Lawson's 

 results as set forth in his paper referred to above. 



2 Notes on the abandoned beaches of the north coast of Lake Superior: Am. Geologist, vol. 20, 1897, pp. 111-128. 



