43 



LEA, ISAAC, LL.D. (Continued.) 



Continuation Read Jan. 2<1, 1835. Vol. vi., p. 10. 1830. (Issued in Syn.lsttd., ls:;i).) 



Synopsis of the Family of Naiades. 



Vol. vi, p. 113. 1830. 



On the Patella Amcona of SAY. (Read March 6th, 1840.) 



Vol. vii, p. 73. 1841. 



Descriptions of nineteen new species of Colimacea. (Read Feb- 

 ruary 21, 1840.) 



Vol. vii, p. 455. 1841. (In Proceedings January-February, 1840.) 



Descriptions of new Freshwater and Land Shells. (Read Jan. 

 15th, 1841.) 



Vol. viii, p. 163. 1843. (In Philos. Proceedings, February, 1841.) 



Continuation Read Dec. 21, 1838. Vol. viii., p. 190. 1843. (In Phtlos. Proc. Dec. 1838.) 



" Oct. 2, 1840. " p. 191. " " "Oct. 1840.) 



" Feb. 19,1841. " p. 230. " " April, 1841.) 



" June 18, " " p. 242. " " Oct. " 



" Oct. 21,1842. p. 246. " " "Oct. 1842.) 



" Feb. 19, 1841. Vol. ix., p. 1, 1846. 



" Juno 18, " " p. 17, " 



" Dec. 16, 1842, " p. 24, " (In Proceedings Dec. 1842.) 



" Aug. 18, 1843, " p. 275," (Printed paper dist.Aug.19, " 



" May 2, 1845. Vol. x., p. 67,1853. (In Philos. Proc. Aug. 1845.) 



Catalogue of the Genus Melania Recent, and Fossil. 



Vol. x, p. 96. 1853. 



Descriptions of new species of the Family Unionidse. (Read 

 March 5th, 1852.) 



Vol. x, p. 253. 1853. 



Description of a new Genus (Basistoma) of the Family Melani- 

 ana, together with some new species of the American Melaniae. 

 (Read March 5th, 1852.) 



Vol. x, p. 295. 1853. 



