Sea shells, plates from William Swainson’s “Zoological illustrations, or, Original figures and descriptions of new, rare, or interesting animals : selected chiefly from the classes of ornithology, entomology, and conchology, and arranged on the principles of Cuvier and other modern zoologists” which was published in London between 1820 and 1823. Page 30. Collections of and digitalized by the Smithsonian Libraries. In the public domain due to age. via https://www.biodiversitylibrary.org/item/92614#page/30/mode/1up Page 66. Collections of and digitalized by the Smithsonian Libraries. In the public domain due to age. via https://www.biodiversitylibrary.org/item/92614#page/66/mode/1up Page 72. Collections of and digitalized by the Smithsonian Libraries. In the public domain due to age. via https://www.biodiversitylibrary.org/item/92614#page/72/mode/1up Page 38. Collections of and digitalized by the Smithsonian Libraries. In the public domain due to age. via https://www.biodiversitylibrary.org/item/92614#page/36/mode/1up