John D. Clark, Ph.D.
Source: "John D. Clark, Ph.D. Bibliography." Author Wars, https://authorwars.com/authors/john-d-clark-phd.html".
Pseudonyms:
Titles:
Essays
- Unknown. An Informal Biography of Conan the Cimmerian
- Unknown. An Informal Biography of Conan the Cimmerian
- Unknown. Dimensions, Anyone?
- Unknown. Introduction (Conan the Conquerer)
- Unknown. Introduction (The Petrified Planet)
- Unknown. Letter (Amazing Stories, January 1939): The Rocket Ship
- Unknown. Letter (Analog, August 1966)
- Unknown. Letter (Analog, February 1964)
- Unknown. Letter (Analog, July 1971)
- Unknown. Letter (Analog, June 1963)
- Unknown. Letter (Analog, November 1960)
- Unknown. Letter (Analog, November 1966)
- Unknown. Letter (Analog, November 1967)
- Unknown. Letter (Analog, September 1971)
- Unknown. Letter (Astounding Stories, February 1937): About Atlantis.
- Unknown. Letter (Astounding Stories, February 1938): Future Evolution.
- Unknown. Letter (Astounding Stories, October 1937): Another Theory of Atlantis.
- Unknown. Letter (Astounding, December 1940): More—
- Unknown. Letter (Astounding, January 1939): "School Days, School Days, Dear Old—"
- Unknown. Letter (Astounding, May 1939): Stephens Asked for It!
- Unknown. Letter (Astounding, October 1957)
- Unknown. Letter (Startling Stories, March 1953): That Hurt Look
- Unknown. Letter (Weird Tales, November 1936): Robert E. Howard's Stories
- Unknown. Letter: On "Of Worms and Unicorns"
- Unknown. Probable Outline of Conan's Career
- 2015. A Probable Outline of Conan's Career
Interior Art
- Unknown. A Map of Oz
- Unknown. A Map of the World of Conan in the Hyborian Age
- Unknown. The Hyborian Age (map)
Non-fiction
Short Fiction
Genres/Themes:
- deviation of an astronomical body (1 book)
- sub-light speed (1 book)
- cosmic rays (1 book)
- science fiction (1 book)
- anti-matter (1 book)
- earth is menaced (1 book)