Richard a Proctor
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Half-Hours with the Stars a Plain and Easy Guide to the Knowledge of the Constellations
Proctor, Richard A
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Transits of Venus: A Popular Account of Past and Coming Transits From the First Observed by Horrocks 1639 to the Transit of 2012, Also an Account of ... the Transit of 1882 (Classic Reprint)
Richard A. Proctor
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A treatise on the Cycloid and all forms of Cycloidal Curves and on the use of such curves in dealing with the motions of planets, comets, &c. and of matter projected from the sun
A Proctor, Richard
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Other Worlds Than Ours (Classic Reprint)
Richard A. Proctor
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Easy Lesson in the Differential Calculus
Proctor, Richard A.
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Easy Lessons in the Differential Calculus: Indicating from the Outset the Utility of the Processes Called Differentiation and Integration
Proctor, Richard A.
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Half-Hours With the Stars: A Plain and Easy Guide to the Knowledge of the Constellations, Showing in 12 Maps, the Position of the Principal ... Night Throughout the Year (Classic Reprint)
Richard A. Proctor
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