28 J. De Laski— Glacial Action on Mount Katahdin. 
I am not able to agree with Prof. Hitchcock in regard to 
the manner of the deposit of these fossiliferous boulders. 
He suggested that “they came round the west side of the 
mountain.”* If we admit the iceberg theory—for the last 
few years considered nearly extinct, and which. Mr. Hitch- 
cock advocated at the time of writing the sentence above, 
ten years ago—there is the smallest possibility that those 
s 
from fifteen to thirty five miles, and dropped on the south 
side of the mountain. The Oriskany beds are three thousand 
feet lower than the locality where the fossils were found on the 
shoulders of Katahdin. 
myself. Furthermore, could these fossils, originally in situ not 
far distant from Katahdin, on low-lying lands, have worked 
themselves, during their short journey, from the bottom of a 
glacier to a position fourteen hundred feet higher into the 
body of the ice-cap? Though large boulders do sometimes 
“slide” is everywhere a plain of eee sand and gravel, 
whose material has a constant tendency to descend. 
* Report of Scientific Survey for 1861, p. 395. 
