l88 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 75 



seum, Dr. Edwin Kirk and Dr. Charles E. Resser of the United States 

 ISTational Museum, and Dr. E. M. Kindle, the Director of the Geo- 

 logical Survey of Canada — also to the officials and employees of the 

 Canadian Pacific Railway and the Canadian National Parks, all of 

 whom have given unfailing courtesy' and assistance, and to Mrs. Wal- 

 cott, my enthusiastic assistant and comrade. I also wish to acknowl- 

 edge the receipt of grants for several years from the Joseph Henry 

 Fund and Othneil C. Marsh Fund of the National Academy of 

 Sciences. These grants have made it possible for Dr. Charles E. 

 Resser to do more field, laboratory, and office work, and for Mr. J. A. 

 Mirguet to work the fossils from their matrix. In the preparation 

 of illustrations, Mr. DeLancey Gill of the Bureau of American 

 Ethnology has given valuable service, and some of the diagrammatic 

 sections have been skillfully drawn from my rough sketches by Miss 

 Frances Wieser. I am greatly indebted to Mr. W. P. True, editor of 

 the Smithsonian Institution, for his careful editorial work on the text 

 and the makeup of the paper. 



GEOGRAPHIC NOMENCLATURE 



My experience in the use of new geographic names has been 

 varied. At times I was compelled to propose names for certain topo- 

 graphic features in order to tie in the geological sections and localities 

 mentioned with the topography so that they could be recognized by 

 future workers. A few of the names proposed have been accepted by 

 the Canadian Board of Geographic Names when located in the Prov- 

 ince of Alberta, but there has been a persistent opposition to recog- 

 nition of those suggested for localities in British Columbia. The 

 names that have been used and later applied to geological formations 

 will presumably be recognized in the future. 



COTTON GRASS AND TILTED MOUNTAIN CIRQUES 



These names were proposed for two large glacial cirques (see pis. 

 52-55) on the western side of the high limestone ridge between Oyster 

 Peak and Tilted Mountain of the western side of the Sawback Range.' 

 They open to the west towards Baker Lake. The stream from Cotton 

 Grass Cirque flows into a branch of the headwaters of Red Deer 

 River, and that from Tilted Mountain Cirque into upper Baker Creek. 



A small glacial lake occurs in the bottom of each cirque, and 

 strongly marked mountain sheep trails lead from the head of the 

 cirques eastward into the canyons of the range that open to the north. 



'Smithsonian Misc. Coll., Vol. -•/, No. 2, 1925. Legend of fig. i, p. i. Also 

 fig. 7. Idem, Vol. 78, No. i, figs. 2 and 4. 



