423 
Lea, Isaac. 
Observations on the Naiades, and Description of New Species of that and other Families. 
Plates. Philadelphia: 1830. 
Supplement. 3 colored Plates. Philadelphia : 1831. 
Description of a New Genus of the Family Melaniana of Lamarck. Philadelphia : 1831. 
All the above are bound together and fofm vol. 1st. 
Observations on the Naiades and Descriptions of New Species of that and other Families. 
Plates. Philadelphia; 1832. 
1st Supplement. 6 colored Plates. Philadelphia : 1833. 
2d “ 6 colored Plates. Philadelphia : 1834. 
The above form volume 2d. 
Continuation of Mr. Lea’s Paper. Philadelphia: 1835. 
1835. 
1836. 
1836. 
1836. 
1837. 
1837. 
1838. 
1838. 
“ “ “ Synopsis of the Family Naiades. 
Geographical Distribution of the Species of the Family Naiades. 
The above form volume 3d. 
8 colored Plates. 
6 colored Plates. 
3 
1 
13 colored 
7 colored 
Description of Nineteen New Species of Colimacea. Read February 21st, 1840. 2 colored Plates. 
Philadelphia. 
Descriptions of New Fresh Water and Land Shells. Read December 21st, 1838. 
Continuation. Read October 2d, 1840. 
“ “ January 15th, 1841. 
“ “ February 19th, 1841. 
“ “ June 18’th, 1841. 
“ “ October 21st, 1842. 
“ “ December 16th, 1842. 
“ “ May 2d, 1845. 
Notice of the Oolitic Formation in America, with Descriptions of some of its Organic Remains. 3 
Plates. May, 1840. 
Leonard, B. G. A Discourse before the Chilicothe Lyceum and Mechanics’ Institute. 1834. See Pamphlets, 
vol. 3d. 
Lesson, R. P. Illustrations de Zoologie ou choix de figures peintes d’apres nature des especes in^dites et rares 
d’animaux recemment decouvertes et accompagn^es d’un texte descriptive, general et 
particulier. 8vo. Plate, color. Paris: 1831. 
Linne, C. Systema Naturae, sive Regna tria Naturae. See Gmelin. 
Lister, M. Historiee Animalium Anglias tres tractatus. Unus de Araneis. Alter de Cochleis turn Terrestribus 
turn Fluvatilibus. Tertius de Cochleis Marinis. Small 4to. 9 Plates. With manuscript notes by 
Dr. Goodall, Provost of Eton. London ; 1678. 
Historise Conchyliorum Oxonii. With Indexes by Huddesford and Dillwyn. 1059 Plates, and 22 
additional Plates, chiefly anatomical. Folio. Oxoniae : 1770. 
Long, S. H. Narrative of an Expedition to the Source of St. Peter’s River, Lake Winnepek, Lake of the Woods, 
&c. Performed in the year 1823. With an Appendix on Zoology. By T. Say. 2 vols. 8vo. 
Philadelphia ; 1824. 
