10 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 72 



Returning to the Bow Valley, the party left the Canadian Pacific 

 Railroad at Lake Louise and went north over Pipestone Pass to the 

 Siffleur River, which is tributary to the Saskatchewan. Li the north- 

 ward-facing cliffs 25 miles (40 km.) east of the Glacier Lake section 

 of 1919, and 40 miles (64 km.) north of Lake Louise, a geological 

 section was studied that tied in the base of the Glacier Lake section 

 of 1919 with the Middle and Lower Cambrian formations. Return- 

 ing up the canyon valley of the Siffleur River to the wide upper valley 

 of the Clearwater River, a most perfectly exposed series of lime- 

 stones, shales, and sandstones of Upper Cambrian and later forma- 

 tions was found (fig. 6) which cleared up the relations of the upper 

 portion of the Glacier Lake section to the Ordovician formations 

 above. 



The field season was marred by forest fire smoke in July and 

 August, and almost continuously stormy weather in September. 

 Some of the incidents of the trail are illustrated by figures 7-12. 

 The trout of Lake Minnewanka (fig. 9) increased our food supply 

 for days while on Ghost River, and the camp on the Clearwater was 

 a paradise for man and beast (fig. 7). On Pipestone Pass the 

 avalanch lily was found forcing its way up through the hard snow 

 (fig. 10). and in a treacherous ford of the Pipestone River, Arthur's 

 war bag and the sugar and flour got a soaking. 



The party is indebted in many ways to the officials of the Rocky 

 Mountains Park, and to the officials of the Canadian Pacific Railroad, 

 all of whom gave assistance whenever it was possible to do so. 



GEOLOGICAL FIELD-WORK IN THE UNITED STATES 



Dr. R. S. Bassler, Curator of Paleontology, U. S. National 

 ^luseum, was engaged in field-work in Ohio and Illinois during the 

 latter half of June and the first part of July, with the result that two 

 large, instructive exhibits and important additions to the study series 

 of fossil invertebrates were obtained. Proceeding first to Northside, 

 Ohio, Dr. Bassler made arrangements for the shipment to Washing- 

 ton of a large, well-preserved fossil elephant skull which had been 

 purchased by the ]\Iuseum through the efforts of Dr. E. O. Ulrich, 

 Associate in Paleontolog}-. This specimen, discovered in glacial 

 gravels near Cincinnati some years ago. was long the prize exhibit of 

 a local saloon ; in fact, it was so highly regarded for advertising 

 purposes that repeated offers of a consideralile sum for its purchase 

 were invariably refused. With the coming of prohibition, its former 

 usefulness departed and the Museum was able to secure it for a 



