6 books
Reports on the Progress of Zoology and Botany, 1841, 1842 (Classic Reprint)
Reports on Zoology for 1843, 1844 (Classic Reprint)
The Ray Society Publications Volume 26
Reports on the Progress of Zoology and Botany, 1841, 1842
A Monograph of the British Nudibranchiate Mollusca
Reports on Zoology for 1843, 1844