CONCHOLOGICAL ILLUSTRATIONS,
Or, figures of hitherto unfigured recent Shells, Part 1 to 200,
Price, 1s. 6d. each,
May now be had with Indices complete. None of the Genera contained in this work will be given in the Thesaurus until all the other Genera are exhausted.
SOWERBY, Naturalist.
No. 50, GREAT RUSSELL STREET, BLOOMSBURY.