Geology and Natural History. 77 
here also extensive areas of Archean rocks. Some small areas of 
ancient Soiree rocks, supposed to be of this age, have already 
been by a red. 
ae Mountain Range consists of oe with quartz- 
ites tea shaly beds, dolomites and red sandstones. The latter 
have been observed near the 49th parallel, res are supposed to be 
Triassic in age. e limestones are, for t ost part, Carbon- 
iferous and Devonian, and no fossils have a been discovered 
indicating a greater age than the last-named period. On the 49th 
parallel, however, the series is supposed to extend down to the 
Cambrian, and compares closely with the sections of the region 
east of the Wahsat tch, on the 40th parallel, given by Clarence 
King. Volcanic material is still present in the Carboniferous rocks 
on the 49th paralle 
The oldest land is that of — eae a and th 
aiser, widen deposits laid down east and west of this barrier 
differ widely in character. The Carboniferous ‘elosad with a dis- 
turbance en dies shut the sea out from a great area east of the 
Gold Range, in which the red akan and saline beds of 
the Jura-trias were formed. In the Peace River region, however, 
marine Triassic beds are found on gee sides of the Rocky Moun- 
tains. 
A great disturbance, producing the Sierra Nevada and Van- 
couver ranges, closed the Triassic and Jurassic period. The shore 
line of the Pacific of the vacbexeaiunsy in British Columbia lay east 
of the Coast Range, and the communicated by the Peace 
satel region with the parte Mediterranean of the great 
plains. 
0 ene deposits have been found in the province. The 
Miocene of the interior plateau is probably homologous with 
King’s Pah-Ute lake of the 40th parallel Miocene. In the Pliocene 
the country appears to have stood higher above the sea-level 
than at present, and pape — time the fiords of the coast were 
probably worn out.—Proe. i. Soe. London, 1881. 
- 2. Caribbean Miocene “oosile —A memoir, on Miocene fossils 
Dom 
3. Report of the "State Geologist of New Jersey for the year 
1880.—Professor GrorcE H. Cook, the State Geologist, dcvoesd a 
considerable part of his last report to a discussion of the relations 
of the soils of the various regions of the State to the accompany- 
ing rocks, which subject was illustrated by a colored map of the 
State. The Report for 1880 contains an extended account of the 
Glacial drift over New Jersey, apa, the facts as to the course 
of the terminal moraine across the State, terraces along valleys, 
and those as to other gravel and ah deposits, chiefly in South- 
ern New J ersey, which are regarded as of pre-glacial origin. 
