1868 107 p., 5 lithographed pls, 4to, paperbound (no covers, partly loose). Small corner of title-page missing.
1868 107 p., 5 lithographed pls, roy. 4to, disbound (no covers). Unopened copy. Published in: Nova Acta Leopoldina. Good copy with nice clean plates.
1857 xii, 551 p., 271 figs, contemporary (or slightly later) cloth (upper end spine a little chipped). Library stamps. Scattered foxing.
1866 iv, 88 p., 5 plates, paperbound (slightly later blind covers). With detailed illustrations by the author. Offprint from the Nova Acta. Uncut. Rather age-toned throughout, otherwise good. Rare. Cat. BM(NH) 3, p. 1007.