30 books
Geological Observations on the Volcanic Islands and Parts of South America Visited During the Voyage of H.M.S. 'beagle'
Popular British Conchology. a Familiar History of the Molluscs Inhabiting the British Isles
Popular History of the Aquarium of Marine and Fresh-Water Animals and Plants
Illustrated Index of British Shells
Popular History of the Aquarium
A Conchological Manual