Add to ORKGBeing an extract from the Bulletin of the U.S. geological and geographical survey, v. 6, no. 2, p. 279-300.Mode of access: Internet
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt. II.cover-title.Mode ...
U.S.dept.int. Geol.and geog.surv.terr. Bull. v.2, p.227-248, 1876.Mode of access: Internet
Reprinted from the University of Colorado studies, vol. IV, no.2Caption title.Mode of access: Intern...
"Geology, by Whitman Cross": p. 18-32.At head of title: Department of the Interior.Bibliography: p. ...
Carnegie Institution of Washington. Publication 599.Bibliography: p. 180-188.Mode of access: Interne...
Detached copy from: Bulletin of the American Geographical Society, v. 37, no. 8, 1905.Mode of access...
From Proceedings of the Colorado Scientific Society, vol. 4, 1891-93.Literature: p. 34-36.Mode of ac...
Issued also as U.S. Geological survey. Bulletin 386.Thesis (PH. D.)--University of Chicago.Mode of a...
Thesis (Ph.D.)--Univ. of California, 1918.Bibliography: p. 13-15.Mode of access: Internet
I̲ṉ Insects. Philadelphia, 1850-1897. v. 4.Caption title.Mode of access: Internet
U.S. Geological and Geogr. Survey of the Territories for 1874.Mode of access: Internet
Extract from Monographs of the U.S. Geological Survey, v. 27.Cover title.Mode of access: Internet
Published under the auspices of the United States Geological survey.Includes bibliographical referen...
"Reprinted from University of Colorado Studies, Vol. VI, No. 2, Boulder, Colo., February, 1909," p. ...
Complete report issued as Monograph of the U. S. Geological survey, vol. XI.Extract from the 3d annu...
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt. II.cover-title.Mode ...
U.S.dept.int. Geol.and geog.surv.terr. Bull. v.2, p.227-248, 1876.Mode of access: Internet
Reprinted from the University of Colorado studies, vol. IV, no.2Caption title.Mode of access: Intern...
"Geology, by Whitman Cross": p. 18-32.At head of title: Department of the Interior.Bibliography: p. ...
Carnegie Institution of Washington. Publication 599.Bibliography: p. 180-188.Mode of access: Interne...
Detached copy from: Bulletin of the American Geographical Society, v. 37, no. 8, 1905.Mode of access...
From Proceedings of the Colorado Scientific Society, vol. 4, 1891-93.Literature: p. 34-36.Mode of ac...
Issued also as U.S. Geological survey. Bulletin 386.Thesis (PH. D.)--University of Chicago.Mode of a...
Thesis (Ph.D.)--Univ. of California, 1918.Bibliography: p. 13-15.Mode of access: Internet
I̲ṉ Insects. Philadelphia, 1850-1897. v. 4.Caption title.Mode of access: Internet
U.S. Geological and Geogr. Survey of the Territories for 1874.Mode of access: Internet
Extract from Monographs of the U.S. Geological Survey, v. 27.Cover title.Mode of access: Internet
Published under the auspices of the United States Geological survey.Includes bibliographical referen...
"Reprinted from University of Colorado Studies, Vol. VI, No. 2, Boulder, Colo., February, 1909," p. ...
Complete report issued as Monograph of the U. S. Geological survey, vol. XI.Extract from the 3d annu...
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt. II.cover-title.Mode ...
U.S.dept.int. Geol.and geog.surv.terr. Bull. v.2, p.227-248, 1876.Mode of access: Internet
Reprinted from the University of Colorado studies, vol. IV, no.2Caption title.Mode of access: Intern...