304 A. P. COLEMAN — ROCK BASINS OF HELEN MINE 



Iii closing this paper, acknowledgments must be made to the Messrs 

 Clergue and their engineers at the mine, and also to Professor Willmott, 

 for their great kindness in supplying information and for the use of maps 

 and sections prepared for purposes in connection with the mine. 



It is now very easy to reach these extraordinary little rock basins by 

 steamer and railway from Sault Sainte Marie, and the region presents 

 an unusual variety of interest to the geologist and geographer, as well as 

 to the mining engineer. 



