1852-1865 47, 79, 20, 19 p., 7, 15, 6, 6 lithographed plates, royal 4to (30.1 x 23.1 cm), near contemporary pebbled quarter cloth over marbled boards. Gilt title on the spine. Two papers published in the Philosophical Transactions of the Royal Society and two in the Transactions of the Linnean Society, With author’s (Hancock’s) dedication to Alexander Agassiz, and with Agassiz's blindstamp and dated circular stamp (Oct. 1868). Later of William Clench, and Richard Johnson. Fore edges uncut. Boards with some rubbing, otherwise a very good, clean copy.The last three papers are by the British malacologist Albany Hanckock (1806-1873), not co-authored by Denis Embleton (1810-1900).