43 



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



Continuation Read Jan. 2d, 1835. Vol. vi., p. JO. 1839. (Issued in Syn. lyt ed., 1836.) 



" " Sept. 18, " " p. 21. " " " " " 



" Feb. 5, 1836. " p. 23. " " " 



" July 15, " " p. 48. " " " " 



" Aug. 19, " " p. 69. " " " 



" Nov. 4, " " p. 73. " " " 



" July 21, 1837. " p. 95. 



" "' Jan. 5,1838. " p. 103. 



" Jan. 19, " " p. 108. 



Synopsis of the Family of Naiades. 



Vol. vi, p. 113. 1839. 



On the Patella Amaona 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 Philos. 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. 



" June 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 Unionidae. (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 Melanias. 

 (Read March 5th, 1852.) 



Vol. x, p. 295. 1853. 



