1 



I 6 

 I913g 

 v. 4 

 NH 



GUIDE BOOK No. 4 



m 



iSouthuieslern 



Ontario 



P o a a 



Excursions A 4, B 1, A 12, B 3. 



ISSUED BY THE GEOLOGICAL SURVEY 

 OTTAWA, CANADA, 1913. 



