Richard a Proctor
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Half-Hours With the Telescope: A Popular Guide to the Use of the Telescope As a Means of Amusement and Instruction
Proctor, Richard Anthony
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Myths and Marvels of Astronomy
Proctor, Richard Anthony
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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: indicating from the outset the utility of the processes called differentiation and integration
Proctor, Richard Anthony
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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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The sun: ruler, fire, light, and life of the planetary system
Proctor, Richard A. 1837-1888
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