- On The Fossil Remains Of Mollusca From The Palaeozoic Formations Of The United States
- On Slaty Cleavage
- Three Papers On The Secondary Rocks And Fossils Of Portugal
- On The Fossil Remains Of Mollusca From The Palaeozoic Formations Of The United States Contained In The Collection Of Charles Lyell, Esq: With Remarks ... American Formations With Those Of Europe
- Description of the Fossil Remains of Mollusca Found in the Chalk of England. Cephalopoda






