Illustrations of Orchidaceous Plants: A Series of One Hundred Figures, chiefly selected from the Botanical Register and British Flower Garden, representing the principal groups of orchids; accompanied by descriptions of the cultivated species of the genera figured; and directions for cultivation. Edited by Thomas Moore. London: Willis and Sotheran, 1857. —Beautiful color illustrations, mostly well scanned.
The Orchid Album, comprising Coloured Figures of New, Rare, and Beautiful Orchidaceous Plants. Conducted by Robert Warner and Benjamin Samuel Williams. The botanical descriptions by Thomas Moore. The coloured figures by John Nugent Fitch. —The picture above is a fair sample of the splendid figures in these books. Sometimes the scans are better at archive.org.
Vol. I (1883).
(At archive.org.)
Vol. II (1883).
(At archive.org.)
Vol. III (1884).
(At archive.org.)
Vol. IV (1885).
(At archive.org.)
Vol. V (1886).
(At archive.org.)
Vol. VI (1887).
(At archive.org.)
Vol. VII (1888, at archive.org; not found on Google Books).
Vol. VIII (1889).
(Another copy.)
(At archive.org.)
Vol. IX (1891).
(At archive.org.)
Vol. X (1893).
(At archive.org.)
Vol. XI (1897).
(At archive.org.)