^ //n. rOREWORD 



^ <P 



THE Story of the Great Lakes, familiar to geologists the world 

 over, is so romantic that it should be known to all who find 

 pleasure in understanding natural environment and the man- 

 ner of its development. The story should have a strong appeal to 

 all who know and love the broad waters of the Great Lakes and the 

 picturesque beauty of their shores. 



Several years ago a group of business men, accustomed to a mid- 

 summer trip together on a lake freighter, each day afloat gathered to 

 discuss subjects of mutual interest. One of them, a geologist, con- 

 tributed a series of informal talks on the Geology of the Great 

 Lakes Region and the History of the Lakes, drawing illustrations 

 from the rocks and shore features that could be observed from the 

 ship. So much interest was aroused by these discussions that eventu- 

 ally it was planned to have the story written in brief, popular form, 

 with the necessary maps and illustrations, so that it could be read at 

 leisure and retained as a memento of such voyages. 



Years passed without any action being taken on this idea, until 

 in the fall of 193 8, Miss Helen M. Martin, geologist, associated with 

 the Michigan Geological Survey, was engaged to prepare the manu- 

 script. As she is intimately familiar with the geology of the lakes 

 region and is a former student of Dr. Frank Leverett (who, with 

 the late Frank B. Taylor, is mainly responsible for what is known 

 of the origin and development of the Great Lakes), Miss Martin is 

 especially qualified for this undertaking. In the spring of 1939, 

 her manuscript, sketch maps and photographs were turned over to 

 Mr. M. D. Harbaugh, who has done the editorial work, prepared 

 final drawings, and designed and directed the publication. 



For this little volume, the reader is indebted to Pickands, Mather 

 and Company, The M. A. Hanna Company, The Cleveland-Cliffs 

 Iron Company, and Oglcbay, Norton & Company. They join with 

 others who have had a part in giving form to the idea that initiated 

 this booklet, in hoping that NE-SAW-JE-WON will be found 

 interesting and instructive. 



M. D. llavbangh 

 Hanna Building 

 Cleveland, Ohio 

 July, 19)9 



