Rudimentary Astronomy. London: John Weale, 1852. First Edition. Ppm xx156, [12]. Publisher’s soft green cloth boards, decorated in blind with title label to upper cover. Covers lightly faded, light spotting to page margins, overall a nice bright copy.

Illustrated with a frontispiece plate and many text drawings throughout.

Robert Main served for twenty-five years as First Assistant at the Royal Greenwich Observatory, and published numerous articles, particularly on stellar and planetary motion. The lunar crater ‘Main’ is named after him, and there is also a crater on Mars named in his honour.