1895.] Geology and Paleontology. 743 
am inclined to suppose that it may have had much to do with the great 
later Pliocene uplift and subsequent depression to which the British 
Columbian region appears to have been subjected. 
“One of the most remarkable features connected with the Behring 
Sea region is the entire absence of any traces of general glaciation. 
Statements to the effect that Alaska, as a whole, showed no such traces 
were early made by Dall and concurred in by Whitney. The result of 
my later investigations in British Columbia and along the adjacent 
coasts have been to show that such original statements were altogether 
too wide ; that a great Cordilleran glacier did exist in the western part 
of the continent, but that it formed no part of any hypothetical polar 
ice-cap, and that large portions of northwest America lay beyond its 
borders. 
“Statements made by Mr. John Muir, in which he not only attrib- 
uted every physical feature noted by him in Behring Sea to the action 
of glaciation, but even expressed the opinion that Behring Sea and 
Strait represented a hollow produced by glaciation, remained alto- 
gether unsupported. It might be unnecessary even to refer to them 
but for the fact that they relate to a region for which data on this sub- 
ject from other sources are so small. No traces have been found of 
general glaciation by land-ice in the region surrounding Behring Sea, 
_ while the absence of erratics above the actual sea-line show that it was 
never submerged for any length of time below ice-encumbered waters. 
“ The facts, moreover, connect themselves with similar ones relating 
to the northern parts of Siberia in a manner which will be at once 
obvious to any student of the glacial period.” (Bull. Geol. Soc. Am. 
Vol. 5, 1894.) 
Green Pond Conglomerate.—In Darton’s paper on the outlying 
series of Paleozoic rocks which occupy a narrow belt extending from 
the Archean highlands of New Jersey into Orange Co., New York 
occurs the following description of the Green Pond Conglomerate. 
“ The greatest development of this formation is in New Jersey, where 
it is continuous over a wide area, and gives rise to a number of prom- 
inent ridges. In New York there are three small outlying areas: Pine 
Hill, northeast of Monroe, and two small ridges west of Cornwall sta- 
tion. Throughout its course it consists of coarse, red conglomerates 
below, and buff and reddish quartzites above, and the characteristics of 
these members are uniform throughout. The conglomerates consist of 
quartz pebbles from one-half to two inches in diameter in greater part, 
in a hard, sandy, quartzitic matrix of dull red color. The proportion 
