LIST OF BOOKS. 
Lamarcs. Histoire naturelle des Animaux sans vertébres, etc. 17 vols. 8vo. Paris, 1815 et seq. 
C The same. Third edition, edited by Deshayes and H. M. Edwards. Bruxelles, 1841 et seq. 
Lea, Various memoirs in the Transactions of the American Philosophical Society, new series. 
“ Contributions to Geology. By Isaac Lea, 8vo. Philadelphia, 1833, with 228 figures. 
“ Synopsis of the Family of Naiades. Svo, With numerous figures published separately. 
Leacu, W.E. The Zoological Miscellany. 3 vols. 8vo. London, 1814 et seq. 
Lesveur, Descriptions of several new species of Ascidea, (Jour. Acad, Nat. Sciences, Vol. 3d.) 
ce Description of a new species of Cephalopode of the genus Loligo. (From the same.) 
Sanper Ranc. Manuel de Vhistoire naturelle des Mollusques et de leur coquilles. 12mo, Paris, 1829. 
Say. Article Conchology, Nicholson’s Encyclopedia, 3d American edition, Philadelphia, 1818. Afterwards published 
in a separate form, under the title of ‘‘ Descriptions of the Land and Freshwater Shells of the United 
States.” 8vo. Philadelphia, 1819. pp. 15, with 4 plates. 
«American Conchology, or Description of the Shells of North America. 8vo, New-Harmony, 183i. 
* Appendix to the Narrative of an Expedition to the Sources of St. Peter’s River. By S.H. Long. 2 vols, 8vo; 
Philadelphia, 1824. 
* Descriptions of some new species of Freshwater and Land Shells of the United States. (Jour. Acad. Nat. Sci. 
Philadelphia.) 
“«  Deseriptions of Marine Shells recently discovered on the Coast of the United States, (HFrom the same.) 
“« Descriptions of some new Terrestrial and Fluviatile Shells of North America, New-Harmony Disseminator, 1829. 
“© Descriptions of several new species of Shells, and of a new species of Lumbricus. (Transylvania Jourual, 1832. ) 
These papers were afterwards published in a separate form, by Mrs. Lucy Say, New-Harmony, pp. 26. 
Swainson. Treatise of Malacology, or the Natural Classification of Shells and Shellfish, 8vo, London, 1840. 
Turron. Conchylia Insularum Britannicarum. London. 4to. 1622. 
Wueattey. Catalogue of the Shells of the United States, and their localities. 12mo, New-York, 1842, pp..29. 
Wyatt. Elements of Conchology. 8vo. 
