Author:Pierre Jules César Janssen
Pierre Jules César Janssen
Works
[edit]Articles in Popular Science Monthly
[edit]- "Methods in Modern Physical Astronomy" in Popular Science Monthly, 22 (February 1883)
- "Life on the Planets" in Popular Science Monthly, 50 (April 1897)
Some or all works by this author were published before January 1, 1930, and 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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