NATURAL SCIENCES OF PHILADELPHIA. 
791 
1901.] 
Catalogue of the invertebrate fossils of the Cretaceous 
Formation of the United States, with references. By William 
M. Gabb, September, 1859. 8vo. Pp. 1-20. (Issued with Proceed¬ 
ings, XT, 1859.) 
Catalogue of the fishes of the Eastern Coast of North Amer¬ 
ica, from Greenland to Georgia. By Theodore Gill. January, 
1861. 8vo. Pp. 1-63. (Issued with Proceedings, XIII, 1861.) 
A Memoir of William Maclure, Esq., late President of the Academy 
of Natural Sciences of Philadelphia. By Samuel George Morton, 
M.D., one of the Vice-Presidents of the Institution. Read July 
1, 1841, and published by direction of the Academy. Philadel¬ 
phia, 1841. 8vo. Pp. 1-37, Portrait. (Issued with Proceedings, 
I, 1841-43.) 
Same, 2d edition. Philadelphia, 1844. 8vo Pp. 1-34. 
A Memoir of Samuel George Morton, M.D., late President of The 
Academy of Natural Sciences of Philadelphia. By Charles D. 
Meigs, M.D. Read November 6, 1851, and published by direction 
of the Academy. Philadelphia, 1851. 8vo. Pp. 1-48. 
A Syllabus of the courses of lectures and laboratory study and 
work provided for students in the Natural Sciences. Philadelphia: 
Printed for the Committee on Instruction, 1884. 8vo. Pp. 1-23. 
Biological and Microscopical Section. 
By-Laws and list of members. 1877. 8vo. Pp. 1-14. 
By-Laws with a list of members and contributors. Philadelphia, 1888. 
8vo. Pp. 1-13. 
(Proceedings of the) Biological Department of The Academy of Natural 
Sciences of Philadelphia. 1858, 1859, 1860. (Issued with Pro¬ 
ceedings of the Academy of corresponding dates.) 
(Proceedings of the) Biological and Microscopical Department of The 
Academy of Natural Sciences. 1868, 1869, 1870, 1871. (Issued 
with Proceedings of the Academy of corresponding dates.) 
CONCHOLOGICAL SECTION. 
By-Laws established for the government of the Conchological Section 
of The Academy of Natural Sciences of Philadelphia (n. d.). 
8vo. Pp. 1-19. 
Manual of Conchology ; Structural and Systematic. With illustrations 
of the species. By George W. Tryon, Jr. 8vo. I, Cephalopoda, 
1879, 316 pp., 112 plates. II, Muricidae, including Purpurinae, 
1880, 289 pp., 70 plates. Ill, Tritonidae, Fusidar, Buccinidae, 1881, 
310 pp., 87 plates. IV, Nassidae, Turbiuellidae, Volutidae, Mitridae, 
1882, 276 pp., 58 plates. V, Marginellidae, Olividae, Columbellidae, 
1883, 276 pp., 63 plates. VI, Conidae, Pleurotomidae, 1884, 400 pp., 
65 plates. VII, Terebridae, Cancellariidae, Strombidae, Cypraeidae, 
Ovulidae, Cassididae, Doliidae, 1885, 309 pp., 75 plates. VIII, 
