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