FAUNAS OF SOUTHEASTERN ALASKA 217 
stratigraphy in Mr. Becker’s paper’ relate to the rocks in the vicinity 
of the gold mines. No correlations with rocks elsewhere are attempted. 
Dall’s paper, which relates solely to post-Paleozoic rocks, has 
attached as an appendix a paper by Charles Schuchert.?, This paper 
gives a list, with notes, of fossils obtained at Kuiu Island by Messrs. 
Dall, Becker, and Brightman. Professor Schuchert referred these 
fossils to two horizons, the Devonian and Carboniferous. It will be 
shown elsewhere in this paper that all of these fossils are of Upper 
Carboniferous age. 
In 1901, Mr. Alfred H. Brooks, incidental to a study of the min- 
eral deposits of the Ketchikan district, collected considerable data 
on areal and structural geology. He also carried a hasty reconnais- 
sance northward as far as Skagway, and thence westward to Sitka. 
In his report he brought together, not only his own data, but also 
those of previous investigators, and included a geologic sketch map 
of southeastern Alaska and a provisional table of correlations. 
Mr. Arthur C. Spencer4 in 1903 made a study of the geology and 
mineral resources of a strip of the mainland extending southward from 
Berners Bay to Snettisham, while in the same year Mr. C. W. Wright’ 
carried a reconnaissance northward to the international boundary in 
the Porcupine district, in which he has shown the presence of a Car- 
boniferous limestone. Since then Messrs. F. E. and C. W. Wright 
have extended their work so as to cover nearly the entire province, but 
only their preliminary statements have been issued. Accompanying 
one of these isa preliminary geological map® covering most of the area. 
Professor B. K. Emerson, one of the geologists of the Harriman 
expedition, has published some notes on the lithology and correlation 
of the rocks at points where their steamer touched.? Most of these 
t Kighteenth Annual Report, U. S. Geological Survey, Part 3 (1898), pp. 7-86, 
96, 97- 
2 “Report on Paleozoic Fossils from Alaska,” Seventeenth Annual Report, U.S. 
Geological Survey, Part II, pp. 898-906. 
3 Professional Paper No. 1, U. S. Geological Survey, pp. 1-119; Bulletin of the 
Geological Society of America, Vol. XIII (1901 [1902]), pp. 253-66. 
4 Bulletin No. 287, U. S. Geological Survey, 1904 (1907). 
5 Bulletin No. 236, U. S. Geological Survey, 1904. 
6 Bulletin No. 284, U.S. Geological Survey, 1906, pp. 30-54, Plate 11. 
7 Ibid., p. 20. 
