Half-Hours with the Stars: A Plain and Easy Guide to the Knowledge of the Constellations by Richard A. Proctor is a classic astronomical guide designed to make the wonders of the night sky accessibl……続きを見る
Half-hours with the Telescope: Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction is a classic 19th-century guidebook written by Richard A. Proctor, designed t……続きを見る
Flowers of the Sky by Richard A. Proctor is a captivating exploration of the wonders and mysteries of the night sky, written by one of the 19th century’s most celebrated astronomers and science comm……続きを見る
