Works
Articles in Popular Science Monthly
- "Footprints in the Rocks" in Popular Science Monthly, 3 (August 1873)
- "The World Before the Introduction of Life" in Popular Science Monthly, 4 (March 1874)
- "The Earlier Forms of Life" in Popular Science Monthly, 10 (January 1877)
- "North America in the Ice Period" in Popular Science Monthly, 20 (December 1881)
Articles in EB9
- "New Hampshire," in Encyclopædia Britannica, Ninth Edition (17) (1884) (with J. K. Lord)
Works about Hitchcock
- "Hitchcock, Charles Henry," in The Encyclopedia Americana, New York: The Encyclopedia Americana Corporation (1920)
Works by this author published before January 1, 1927 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.
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