London. Royal Astronomical Society, 1893. [2], 520, plus 'List of Presents,' pages, 211-237. Illustrated with nine full-page plates, mostly folding, and within the text. Bound in half-calf gilt over marbled boards, recently re-backed; inner joints strengthened. Octavo. Ex-libris Admiralty Library with ‘withdrawn’ stamp to front endpapers and to title-page; else a very good copy.