316 E. M. KINDLE .- 
to our knowledge of the stratigraphy of southeastern Alaska. These 
three traversers of the coastwise belt established the fact that the 
sedimentaries are cut by a granite belt of great width and length. 
In 1892 Mr. H. P. Cushing, a member of Professor Reed’s party, 
published a paper on the bed-rock geology about Glacier Bay, which 
includes a report on a small collection of fossils from a limestone 
having “‘a thickness of several thousand feet.’’ These were deter- 
mined by Professor H. S. Williams as Paleozoic.' Later this col- 
lection, with the addition of a coral which appears to have been 
obtained from a glacial moraine, was reported to be Carboniferous 
on the authority of Professor Williams.? Professor J. J. Stevenson, 
who obtained the coral considered it and the Leperditias to indicate 
a horizon ‘‘not younger than Middle Devonian.’’s 
Professor H. F. Reid in 1895 published a report on “Glacier Bay 
and Its Glaciers,’’4 in which he quotes this determination by Wil- 
liams of the Carboniferous age of the Glacier Bay limestones. On 
the basis of this determination Reid suggests the correlation of the 
Glacier Bay ‘‘Carboniferous” and some of the argillites and lime- 
stones described by Hayes in the Taku section, too miles to the east- 
ward, with the Glacier Bay limestones. The Cambro-Silurian age 
of the argillites underlying the limestone at Glacier Bay is suggested 
by Reid because of a supposed analogy of his section to one of 
Dawson’s some 300 miles to the southeast, in which Carboniferous 
faunas are said to follow a Cambro-Silurian horizon. The Cushman 
fossils were later examined by Schuchert, who reported them to be 
Silurian, with the exception of the coral from the moraine, concerning 
which Schuchert agreed with Stevenson in reporting it to be an 
Acervularia, representing a Devonian horizon.’ Fossils recently col- 
lected by the Wrights leave no question as to the Silurian age of the 
Glacier Bay limestones. 
In 1895 Messrs. Dall and Becker visited southeastern Alaska in 
order to study its gold and coal resources. The observations on the 
t National Geographical Magazine, Vol. IV (1892), p. 59. 
2 Sixteenth Annual Report, U.S. Geological Survey, Part 1, p. 434. 
3 Scottish Geographical Magazine, Vol. IX (1893), p. 70 (separate p. 5). 
4 Sixteenth Annual Report, U. S. Geological Survey, Part 1, pp. 433, 434. 
5 Brooks, Professional Papers No. 1, U.S. Geological Survey, p. 20. 
