- comte de Arthur Gobineau
- Balfour Stewart
- J. M. Woodman
- Sir Edward Bagnall Poulton
- Robert S. Ball
- Svante Arrhenius
- Duchess of Margaret Cavendish Newcastle
- Noble Smithson
- Edward Hoare
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Comets and Meteors Their phenomena in all ages; their mutual relations; and the theory of their origin.
Daniel KirkwoodRead For Free - Th. Ribot
- Erwin Freundlich
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- Henry A. Mott
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The International Monthly Magazine, Volume 1, No. 1, August 1850 of Literature, Science and Art.
VariousRead For Free -

The Machinery of the Universe: Mechanical Conceptions of Physical Phenomena
A. E. DolbearRead For Free - A. S. Packard
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A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation'
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Darwin, and After Darwin, Volumes 1 and 3 An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions
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