NO. 17 



SMITHSONIAN EXPLORATIONS, iyl6 



19 



At last, in the clift's above Ross Lake (fig. 15). the .llbcrtclla 

 fauna was located in situ, and from the slopes above the lake a 

 panoramic view (fig'. 14) was taken of Mount Bosworth, above Kick- 

 ing Horse Pass on the Continental Divide. Although only 9.083 feet 

 in height. Mount l)Osworth exposes in its slopes over 12,000 feet in 

 thickness of bedded rocks that constitute one of the best sections 

 of the Cambrian rocks found in the Canadian Rockies. 



Fic. 24. — Waiting for the odds and ends for the last pack at Red Earth Creek 

 camp. The last outfield camp of igi6. Photograph hy Walcott, 1916. 



Considerable collections of Cambrian fossils were obtained by 

 Secretary and Mrs. Walcott, who accompanied and worked with 

 him throughout the trip, before the storms of late September drove 

 them back to lianfi" and ended the research for the season. 



A few of the incidents of life along the trail are illustrated by 

 figures 17 to 24. 



GEOLOGICAL FIELD STUDIES 



Dr. George P. Merrill, head curator of geology in the National 

 Mtisetun, devoted several days of the summer vacation period to 



