Add to ORKG"From the Proceedings of the Academy of Natural Sciences of Philadelphia, May-October, 1920 ..."Includes bibliographical references.Mode of access: Internet
"Published as a part of the annual report of the Board of Geological and Biological Survey for 1920....
Reprinted from the Bulletin of the Minnesota Academy of Science.Mode of access: Internet
"(Read before the American Association for the Advancement of Science.)"Electronic reproduction.Mode...
Reprinted from Maryland geological survey [report] vo. IX, 1910.Life.Thesis (Ph. D.)--Johns Hopkins ...
Reprinted from the Journal of the Academy of natural sciences of Philadelphia. vol. XI...1899.Mode o...
Vol. for 1926/38 includes Supplementary bibliography of Alabama geology.Vols. for 1919-20, 1926-38 a...
Based on work done in cooperation with the University of Alabama.Includes bibliographical references...
"Published from advance sheets of vol. XXIX of the Transactions.""An address delivered before the Am...
Thesis (Ph.D.)--Columbia University, New York.Cover title."A paper presented to the American Institu...
At head of title: ... Department of commerce. Herbert Hoover, secretary. Bureau of mines. Scott Turn...
Caption title.At head of title: Transactions of the American Institute of Mining Engineers."(Read at...
Reprinted from the Journal of the Franklin institute, August, 1914.Cover title.Mode of access: Inter...
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt.3, p.21-218.Mode of a...
"From the Proceedings of the Academy of Natural Sciences, Philadelphia, 1887."Mode of access: Intern...
Reprinted from the Transactions of the American institute of mining engineers, 1899.Pub. also as Col...
"Published as a part of the annual report of the Board of Geological and Biological Survey for 1920....
Reprinted from the Bulletin of the Minnesota Academy of Science.Mode of access: Internet
"(Read before the American Association for the Advancement of Science.)"Electronic reproduction.Mode...
Reprinted from Maryland geological survey [report] vo. IX, 1910.Life.Thesis (Ph. D.)--Johns Hopkins ...
Reprinted from the Journal of the Academy of natural sciences of Philadelphia. vol. XI...1899.Mode o...
Vol. for 1926/38 includes Supplementary bibliography of Alabama geology.Vols. for 1919-20, 1926-38 a...
Based on work done in cooperation with the University of Alabama.Includes bibliographical references...
"Published from advance sheets of vol. XXIX of the Transactions.""An address delivered before the Am...
Thesis (Ph.D.)--Columbia University, New York.Cover title."A paper presented to the American Institu...
At head of title: ... Department of commerce. Herbert Hoover, secretary. Bureau of mines. Scott Turn...
Caption title.At head of title: Transactions of the American Institute of Mining Engineers."(Read at...
Reprinted from the Journal of the Franklin institute, August, 1914.Cover title.Mode of access: Inter...
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt.3, p.21-218.Mode of a...
"From the Proceedings of the Academy of Natural Sciences, Philadelphia, 1887."Mode of access: Intern...
Reprinted from the Transactions of the American institute of mining engineers, 1899.Pub. also as Col...
"Published as a part of the annual report of the Board of Geological and Biological Survey for 1920....
Reprinted from the Bulletin of the Minnesota Academy of Science.Mode of access: Internet
"(Read before the American Association for the Advancement of Science.)"Electronic reproduction.Mode...