NIPISSING GREAT LAKHS. 



459 



On the west side of Lake Michigan the Nipissing beach north of the hinge line was deter- 

 mined instrumentality at a number of places by Goldthwait and at a few on the Garden Peninsula 

 by Hobbs. Some determinations were made by Russell and the writer by aneroid and hand level. 



Altitudes of Nipissing beach on ivest side of Lake Michigan. 



Rapid River 



Garden Bav 



Burnt Bluff a 



Escanaba 



St. Martins Island 



Washington Island 



Detroit Harbor 



Hedgehog Harbor 



Ellisons Bay 



Sister Bay 



Ephraim. 



Fish Creek 



Juddville 



Egg Harbor 



Baileys Harbor 



Jacksonport 



Graceport 



Sturgeon Bay 



Clay Banks 



Algoma (4 miles north) 



Authority. 



The hinge line appears to be about at Algoma. South of this is the area of horizontal^, 

 in which measurements of the height of the Nipissing around the south end of Lake Michigan 

 vary from 13 to 17 feet above the present lake level. 



In Ontario the altitude of the Nipissing beach has been measured instrumentally by Gold- 

 thwait at numerous localities. One hand-level measurement by the writer is included. 



Altitudes of Nipissing beach in Ontario. 



North Bay... 

 Algoma Mills 



Coldwater 



Wyebridge... 



Penetang 



Collingwood.. 

 Thornbury... 



Meaford 



Hogg 



Presque Isle.. 

 Owen Sound. 



Wiarton 



Hope Bay — 

 Lions Head . . 

 Dyers Bay . . . 

 Southampton 

 Port Elgin... 

 Inver Huron . 

 Kincardine... 

 Kettle Point i 

 Sarnia^ 



Goldthwait. 



Tavlor. 



Goldthwait. 



b In the area of horizontally. 



