KNOX, Arthur Edward. Ornithological Rambles in Sussex, London: John van Voorst, 1849, 8°, FIRST EDITION, 4 tinted lithographed plates by Knox, (some spotting), original blind-stamped cloth with decorative gilt design on upper cover (worn at head and tail) [Nissen IVB 515; Mullens & Swann p.333] -- GRAY, Robert. The Birds of the West of Scotland including the Outer Hebrides, Glasgow: Thomas Murray, 1871, 8°, 15 tinted lithographed plates (some plates spotted), original cloth gilt (shaken) [Mullens & Swann p.248] -- POWYS, Thomas Lyttleton Lord Lilford. Notes on the Birds of Northamptonshire and Neighbourhood, London: R.H. Porter, 1895, 2 vols., 4°, LARGE PAPER COPY limited to 100 copies only and printed for subscribers, plates, folding map, contemporary green half morocco, t.e.g. [Mullens & Swann p.352]; and 20 other ornithological works. (24)