Richard a Proctor
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Half-hours with the starsA plain and easy guide to the knowledge of the constellations
Richard A. Proctor
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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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Easy Lessons in the Differential Calculus
Proctor, Richard A.
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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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Half-Hours with the Telescope; Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction
Richard A. Proctor
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