UNIVERSITY OF CALIFORNIA PUBLICATIONS 



BULLETIN OF THE DEPARTMENT OF 



GEOLOGY 



Vol. 10, No. 1, pp. 1-19 Issued April 27, 1916 



THE CORRELATION OF THE PRE-CAMBRIAN 

 ROCKS OF THE REGION OF THE 

 GREAT LAKES 



BY 



ANDREW C. LAWSON 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



