EVIDENCES OF PRIMITIVE LIFE WALCOTT. 251 



great section of the Cambrian of the Rockies 200 miles (328.8 

 kilometers) northwest of the Burgess Pass section near Field, 

 British Columbia, and the following season accordingly found me 

 again exploring new fossil localities in the midst of magnificent 

 scenery. 



Robson, the most majestic peak of the Canadian Rockies (pi. 1), 

 is situated northwest of the Yellowhead Pass, through which the 

 Grand Trunk Pacific and the Canadian Northern Railway have been 

 building their lines to connect the gi-eat interior plains and granary 

 of Canada with the Pacific coast. Known to trappers of the Hudson 

 Bay Co. and a few hardy explorers who have penetrated the region 

 in search of a practicable trail to the Pacific, it has until now re- 

 mained to the rest of the Avorld almost an undiscovered country. 



NOMENCLATURE. 



Although not an original explorer of the Robson Peak district it 

 fell to my lot to be the first to study the geologic section, and in this 

 connection it was necessary to apply additional names in order to 

 properly locate, describe, and name the geologic formations. 



In this region of ancient Indian association it seemed to me 

 especially fitting that some appropriate Indian terms should be 

 used in order to preserve from total oblivion a curious language 

 typical of a picturesque and fast disappearing people. AVith the 

 help of the Bureau of American Ethnology of the Smithsonian 

 Institution. I prepared a list of such names, of which the following 

 are examples : 



Titkanai (bird) Peak. 



lyatunga ^ (black rock) Mountain. 



Hunga (chief) Glacier. 



Hihuna (owl) River. 



Chupo (fog, mist) Glacier, etc. 



FOSSIL DISCOVERIES. 



Chupo, the glacier of fog and mist, is usually half concealed by 

 clouds and banks of mist that form on the edge of the mountain 

 and drift over it. This glacier proved of great interest and service 

 to us in our geologic work. On its surface blocks of rock from 

 high up on the peak were carried down to the great moraine at its 

 foot, and in those blocks I found the evidence that proved the upper 

 third of the mountain to be of post-Cambrian age by the presence 

 in the limestone of marine shells and fragments of crablike animals 

 that lived in so-called Ordovician time. 



The beautiful Hunga Glacier is literally a flowing river of ice. 

 At its left Titkana (bird) Peak rises as a black limestone mass that 



1 Approved by National Geographic Board of Canada, December, 1912. 



