Add to ORKGFrom the American Geologist, vol. XXIX, no. 7, January 1902.Bibliography: p. 40-47.Mode of access: Internet
Continued by the author's "Record of North American Geology 1887-1891."Mode of access: Internet
"Extract from The fourth annual report of the director [of the U.S. Geological Survey], 1882-83."Mod...
"Reprinted ... from the Journal of geology, v.22, nos. 1-8, 1914; v.23, nos. 1,5 and 6, 1915."Mode o...
Reprinted from the Journal of geology, vol. VIII, no. 3, April-May, 1900.Cover-title.Mode of access:...
"Reprinted from The American Geologist, Vol. XII, July, 1893."Mode of access: Internet
Reprinted from the Journal of Geology ; Vol. VIII, No. 7 (Oct. -Nov. 1900).Mode of access: Internet
Trans. Geol. Soc. London. (2) v. 413-495 (+9); pl. 35-41. 1840.Mode of access: Internet
From the American geologist, vol. XX-XXI, 1897-1898.Thesis (PH. D.)--Univ. of Minnesota.Mode of acce...
"Reprinted from the Johns Hopkins University circular, March, 1917. "Mode of access: Internet
Caption title."From The American Geologist, vol. XI, January, 1893."Electronic reproduction.Mode of ...
Reprinted from the American geologist, v. xxi, February, 1898.Cover-title.Mode of access: Internet
"Advance chapter from Bulletin No. 340, Contributions to economic geology, 1907, Part I".Mode of acc...
"From the American journal of science, vol. XIX, July, 1880."Mode of access: Internet
Reprinted from Natural History, Vol.XX, No.3 pp.294-301, 1920.Mode of access: Internet
Reprinted from the Journal of geology, vol. VIII, no. 7, October- November, 1900.Cover title.Mode of...
Continued by the author's "Record of North American Geology 1887-1891."Mode of access: Internet
"Extract from The fourth annual report of the director [of the U.S. Geological Survey], 1882-83."Mod...
"Reprinted ... from the Journal of geology, v.22, nos. 1-8, 1914; v.23, nos. 1,5 and 6, 1915."Mode o...
Reprinted from the Journal of geology, vol. VIII, no. 3, April-May, 1900.Cover-title.Mode of access:...
"Reprinted from The American Geologist, Vol. XII, July, 1893."Mode of access: Internet
Reprinted from the Journal of Geology ; Vol. VIII, No. 7 (Oct. -Nov. 1900).Mode of access: Internet
Trans. Geol. Soc. London. (2) v. 413-495 (+9); pl. 35-41. 1840.Mode of access: Internet
From the American geologist, vol. XX-XXI, 1897-1898.Thesis (PH. D.)--Univ. of Minnesota.Mode of acce...
"Reprinted from the Johns Hopkins University circular, March, 1917. "Mode of access: Internet
Caption title."From The American Geologist, vol. XI, January, 1893."Electronic reproduction.Mode of ...
Reprinted from the American geologist, v. xxi, February, 1898.Cover-title.Mode of access: Internet
"Advance chapter from Bulletin No. 340, Contributions to economic geology, 1907, Part I".Mode of acc...
"From the American journal of science, vol. XIX, July, 1880."Mode of access: Internet
Reprinted from Natural History, Vol.XX, No.3 pp.294-301, 1920.Mode of access: Internet
Reprinted from the Journal of geology, vol. VIII, no. 7, October- November, 1900.Cover title.Mode of...
Continued by the author's "Record of North American Geology 1887-1891."Mode of access: Internet
"Extract from The fourth annual report of the director [of the U.S. Geological Survey], 1882-83."Mod...
"Reprinted ... from the Journal of geology, v.22, nos. 1-8, 1914; v.23, nos. 1,5 and 6, 1915."Mode o...