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JAMES WALTER GOLDTHWAIT 



for about 20 miles near Milwaukee (part of the area recently covered 

 by Alden), was traversed during the field season, chiefly on foot. 

 Gasoline fishing-boats were used to advantage near the end of Door 

 County Peninsula and on the southeastern shores of Green Bay. 

 South of Sturgeon Bay the traverse was a continuous one, the present 

 shore being followed wherever it has cut back a line of high cliffs 

 beyond the earlier shore-lines, as is very common, and the fragments 

 of abandoned shore-lines being followed from their beginnings, at the 



Fig. 2. — Boyer Bluff, at the northwestern end of Washington Island. Three steps 

 or notches in the headland mark three important stages of Lake Algonquin. 



lake cliffs, to their endings further along. North of Sturgeon Bay, 

 on the less thickly settled peninsula, the beaches were not followed 

 continuously, but were visited at short intervals of from one-half to 

 five or six miles, wherever they are most accessible and best developed. 

 Although the hand level was used in favorable places, to economize 

 time, such measurements were not regarded as critical. With the 

 spirit. or "wye" level accurate profiles of the entire series of beaches 

 were measured at about fifty localities, most of them on the Door 

 County peninsula, where the best records were found. By this means 

 it was possible to correlate the fragments with more than usual con- 



