Half-Hours with the Stars A Plain and Easy Guide to the Knowledge of the Constellations‎

By Proctor Richard A. (Richard Anthony)  

ISBN:gutenbur23300

Project Gutenberg‎(2007)‎

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Light Science for Leisure Hours A series of familiar essays on scientific subjects, natural phenomena, &c.‎

By Proctor Richard A. (Richard Anthony)  

ISBN:gutenbur54455

Project Gutenberg‎(2017)‎

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Rough Ways Made Smooth A series of familiar essays on scientific subjects‎

By Proctor Richard A. (Richard Anthony)  

ISBN:gutenbur54557

Project Gutenberg‎(2017)‎

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Pleasant Ways in Science‎

By Proctor Richard A. (Richard Anthony)  

ISBN:gutenbur54376

Project Gutenberg‎(2017)‎

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Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction.‎

By Proctor Richard A. (Richard Anthony)  

ISBN:gutenbur16767

Project Gutenberg‎(2005)‎

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Myths and Marvels of Astronomy‎

By Proctor Richard A. (Richard Anthony)  

ISBN:gutenbur26556

Project Gutenberg‎(2008)‎

Access to resources Favorite 21.802858