5 
LEA, ISAAC, LL.D.—(Continued.) 
Continuation—Read Jan. 2d, 1835.—Vol. vi., p. 19. 1839. (Issued in Syn. Ist ed., 1836.) 
“ec “ce Sept. 18, ce 6c p- 2 it% ce cc “e ity 
“cc “cr Feb. 5, 1836. iti p- 23. ity its ity “ “ce 
“cc “ July 15, &é ee p. 48, “cc 6é ify ce “ 
“ “ Aug, 19, [a3 “cc p- 69. “ce se “cc 6c 6c 
. “cc “cc Nov. 4, ity “cc p- 73. ty Ts “ ec its 
« « July 21,1837. “ p.95. 
« Jan, 5,1838...  p,.108. 
« « Jan. 19, “« — p.108. 
Synopsis of the Family of Naiades. 
Vol. vi, p. 113. 1839. 
On the Patella ameena 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. vii, p. 163. 1843. (In Philos. Proceedings, February, 1841.) 
Continuation—Read Dec. 21, 1838.—Vol. viii., p. 190. 1843. (In Philos. Proc. Dec. 1838.) 
Cs “Oct. 2, 1840. - Bylot. of a “ Oct. 1840.) 
ee “Feb. 19,1841. as Pin Hs “ April, 1841.) 
“ce “cc June 18, “cc “cc p- 242. “e ‘“ cc Oct. it3 
¢ Oct. 21,1842; as p: 246. .-‘ “s “ Oct... 1842.) 
es ‘Feb. 19, 1841.—Vol. ix., p.1, 1846. 
“ “ Junels, “ “ p- a leas 
se “Dec. 16, 1842, é p. 24, “ (In Proceedings Dec. 1842.) 
as «Aug. 18,1843, eg p- 275,“ (Printed paper dist.Aug.19, “ 
ce «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 Unionidee. (Read 
March 5th, 1852.) 
Wol.'x;p. 253. 1853. 
Description of a new Genus (Basistoma) of the Family Melani- 
ana, together with some new species of the American Melaniz. 
(Read March 5th, 1852.) 
Vol. x, p. 295. 1853, 
