II 



ILLUSTRATIONS TO PART I. 



Maps. 



Page. 



Itineraires des Excursions CI, C2, C3, C4, C8, C9, 13 



(Itineraires des Excursions CI, C2, C3, C4, 13 



Loon lake 25 



Steeprock lake. Rainy River district 49 



Golden Star mine, Rainy district 59 



Bears's Passage, Rainy lake (in pocket) 



Stony Mountain (in pocket) 



Geological map of the Plains (in pocket) 



Route map between Calgary and Banff 10 1 



Drawings and Sections. 



Section through Mt. Mckay near Fort William, Ont. The 

 trap here bears a similar relationship to the slaty series to 

 that which it has in the Cobalt area. Some silver veins 

 in the Port Arthur area cut both the trap and the slate. 

 (After Dr. A. C. Lawson) 35 



Projection of beaches of Lake Agassiz in vertical section. ... 96 



Photographs. 



Diabase sill intrusive into slate. Current River Park, Port 



Arthur 32 



Black Animikie siate. Prospect Street, Port Arthur 33 



Slates exposed in Stewart and Hewitson's quarry, Port Arthur 34 



Animikie indurated shales, Kakabeka falls 40 



Open cut, Atikokan iron mine, Iron Spur, Ontario 43 



Fossiliferous Steeprock limestone, Trueman point, Steeprock 



lake, Ontario 52 



Coutchiching mica schists dipping beneath Keewatin green- 

 stone, Rainy lake, Ontario 62 



Inclusions of Coutchiching mica schist in Algoman granite, 



Rainy lake, Ontario 65 



The topography of the plains, Winnipeg to Calgary 78 



The eastern edge of the third Prairie Steppe and the Glacial 



drainage channels on the second Prairie Steppe 81 



Plan of beaches of Lake Agassiz in Manitoba 94 



