ABSTRACTS OF PAPERS 53 



study of glacier motion. But I wisli to empliasize tlie fact ttiat its slow rate 

 of movement may be the result of local conditions, and that, as Doctor Bate- 

 man says, further study on the glaciers nearer the coast should be made before 

 it is safe to generalize for the region as a whole. 



Dr. A. O. Hayes : I measured the rate of flow of the Bromley glacier, situ- 

 ated in the Portland Canal district, in British Columbia, about ten miles south 

 of the Alaskan boundary. As the results have not been published and may be 

 of interest in the discussion, I shall give the data from memory. 



Two observations were made — the first in September, 1910; the second one 

 year later. The average rate of flow was about one foot per day. The glacier 

 flows from a large ice-field 6,000 feet and higher above sealevel, and extends 

 down a valley about one mile wide for 6 miles, until at an elevation of 1,000 

 feet the end glacial stream forms the headwaters of Bitter Creek, a northerly 

 flowing tributary of Bear River. Heavy tripods and lined in by a transit 

 were placed across the glacier, one mile from its lower end and 1,000 feet 

 apart. The midstream tripods moved down about 400 feet and those nearer 

 the shores a less distance, with total variation of about 100 feet. The end of 

 the glacier has retreated about 50 feet. 



rOSTOLACIAL CHANGES OF LEVEL IN NEWFOUNDLAND AND LABRADOR 

 BY REGINALD A. UALY 



(Abstract) 



Suspecting serious error in his 1900 measurement of the amount of post- 

 glacial emergence at Saint Johns, Newfoundland, the writer visited the island 

 during the past season. He has found that the zero isobase for postglacial 

 emergence crosses Newfoundland from a point on the west coast about forty 

 miles north of Port-aux-Basques to a point on the east coast between Cape 

 Bonavista and Fogo Island. The amount of emergence increases northward, 

 measuring about 400 feet at Cape Bauld, Belle Isle Strait, and 540 feet at 

 Forteau, Labrador. These figures for the north agree well with the determi- 

 nations made in 1900. The 1900 measurement for Signal Hill, Saint Johns, 

 was completely in error. Saint Johns is rather in a belt of submergence. 



Presented by title in the absence of the author. 



ACCORDANT LEVELS IN THE WHITE MOUNTAINS 

 BY ALFRED C. LANE 



(Abstract) 



The high level "lawns" like Boott Spur, studied by Goldthwait, may repre- 

 sent the top of the ice-sheet for a time prolonged, but not that of maximum 

 glaciation. The Cretaceous baselevel seems to have been lower, about 2,635 

 feet above tide. The New England peneplain has been rightly followed by 

 Lobeck, but is, as Barrell has suggested, a plain of marine denudation, and 

 the plain about 1,100 feet above tide has in many places overtaken the higher 

 terraces described by Barrell. 



Presented b}- title in the absence of the author. 



