"Reprinted from The American Geologist, Vol. XII, July, 1893."Mode of access: Internet
"Reprinted from Journal of Cincinnati Society of Natural History, Jan. 1894."Caption title.Mode of a...
Caption title."From The American Geologist, vol. XI, January, 1893."Electronic reproduction.Mode of ...
"From the American journal of science, October, 1891, vol. xlii, pp. 271-303."Mode of access: Intern...
From the American Geologist, vol. XXIX, no. 7, January 1902.Bibliography: p. 40-47.Mode of access: I...
Read before the National Academy of Sciences, April 17, 1902."List of publications of Professor John...
Reprinted from the Journal of geology, vol. VIII, no. 3, April-May, 1900.Cover-title.Mode of access:...
Reprinted from the Journal of Geology ; Vol. VIII, No. 7 (Oct. -Nov. 1900).Mode of access: Internet
"From the American journal of science, vol. XIX, July, 1880."Mode of access: Internet
Continued by the author's "Record of North American Geology 1887-1891."Mode of access: Internet
"Reprinted from the South Atlantic quarterly, volume XXI, number 3, July, 1922."Mode of access: Inte...
"Reprinted from the Johns Hopkins University circular, March, 1917. "Mode of access: Internet
From the Transactions of the New York Academy of Sciences, late Lyceum of Natural History, vol. VII,...
Reprinted from the American geologist, v. xxi, February, 1898.Cover-title.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 American Meteorological Journal, March, 1887."Mode of access: Internet
"Reprinted from Journal of Cincinnati Society of Natural History, Jan. 1894."Caption title.Mode of a...
Caption title."From The American Geologist, vol. XI, January, 1893."Electronic reproduction.Mode of ...
"From the American journal of science, October, 1891, vol. xlii, pp. 271-303."Mode of access: Intern...
From the American Geologist, vol. XXIX, no. 7, January 1902.Bibliography: p. 40-47.Mode of access: I...
Read before the National Academy of Sciences, April 17, 1902."List of publications of Professor John...
Reprinted from the Journal of geology, vol. VIII, no. 3, April-May, 1900.Cover-title.Mode of access:...
Reprinted from the Journal of Geology ; Vol. VIII, No. 7 (Oct. -Nov. 1900).Mode of access: Internet
"From the American journal of science, vol. XIX, July, 1880."Mode of access: Internet
Continued by the author's "Record of North American Geology 1887-1891."Mode of access: Internet
"Reprinted from the South Atlantic quarterly, volume XXI, number 3, July, 1922."Mode of access: Inte...
"Reprinted from the Johns Hopkins University circular, March, 1917. "Mode of access: Internet
From the Transactions of the New York Academy of Sciences, late Lyceum of Natural History, vol. VII,...
Reprinted from the American geologist, v. xxi, February, 1898.Cover-title.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 American Meteorological Journal, March, 1887."Mode of access: Internet
"Reprinted from Journal of Cincinnati Society of Natural History, Jan. 1894."Caption title.Mode of a...
Caption title."From The American Geologist, vol. XI, January, 1893."Electronic reproduction.Mode of ...
"From the American journal of science, October, 1891, vol. xlii, pp. 271-303."Mode of access: Intern...