304' 



LEA— LEB 



gular forms of Chinese species of Unio ; Descriptions of four new 

 species of Exotic Unionidse ; Descriptions of twenty-six new species 

 of Melanidse of the United States ; Descriptions of seven new species 

 of Unio from North Carolina ; Descriptions of two new species of 

 Unionidae from Equador ; and descriptions of Unionidae from the 

 Lower Cretaceous formation of New Jersey. (Tract.) 



8vo. Philadelphia, 1868 



Lea (Isaac). Notes on Microscopic Crystals included in some Minerals. 

 (Tract.) 8vo. Philadelphia, 1869. 



. Notes on Microscopic Crystals in some of the Gems, etc. (Tract.) 



8vo. Philadelphia, 1869. 



. A Synopsis of the Family Unionidae. 4th edition. 



4to. Philadelphia, 1870. 



. Conchological and Mineralogical Papers, viz. : — ^Notes on Micro- 

 scopic Crystals included in some Minerals ; Eurther notes on Micro- 

 scopic Crystals in some of the Glems, etc. ; Descriptions of six new 

 species of Freshwater Shells ; Descriptions of three new species of 

 Exotic Unionidae ; Descriptions of twenty new species of Uniones 

 of the United States ; Descriptions of twenty-nine species of Unio- 

 nidae of the United States ; Descriptions of seven new species of 

 Unionidae of the United States ; Descriptions of three new species 

 of Uniones of the United States. [1869-1873.] (Tract.) 



8vo. Philadelphia, 1874. 



. A Catalogue of his published works from 1817 to 1876. (Tract.) 



8vo. Philadelphia, 1876. 



. Further notes on " Inclusions " in Gems, etc. (Tract.) 



8vo. Philadelphia, 1876. 



. See FouLKE (William Parker). 



and Lea (Henry C). Description of a new genus of the family 



Melaniana, and of many new species of the genus Melania, etc. ; 



also Descriptions of five new species of Anodontce, collected in the 



East Indies. (Tract.) 8vo. London, 1851. 



Lea (Thomas G.). Catalogue of Plants, native and naturalized, collected 



in the vicinity of Cincinnati, Ohio, during the years 1834-1844. 



(Tract.) 8vo. Philadelphia, 1849. 



Leader (J. D.). See British Associatio2«". Sheffield Guide-Book. 

 Lebesconte (Paul). See Teomelin (Gaston le Goarant de). 

 Leblanc (Felix). See Sainte-Claire Deville (Charles). 

 Lebossu ( — ). Manuel du toiseur en batimens. 1^ partie. Terrasse et 



magonnerie. 12mo. Pam, 1832. 



Leboucher ( — ). Eapport sur un meteore qui a ravage les communes 



de Douvres et de Luc, pres Caen, au mois de Septembre, 1849. 



(Tract.) 4to. Oaen, 1849. 



Labour (G. A.). Notes on Staurolite, in connexion with Metamorphism. 



(Tract.) 8vo. London, 1873. 



. The Geology of the Eedesdale Ironstone District. (Tract.) 



8vo. Newcastle-on-Tyne, 1873. 



. On the Deposits now forming in British Seas. (Tract.) 



8vo. London. 



. On the Limits of the Yoredale Series in the North of England. 



(Tract.) 8vo. London, 1875. 



