1901.] NATURAL SCIENCKS OF nilLADELPIIIA. 791 



Catalogue op the invektebrate fossils op the Cretaceous 

 Formation of the United States, -with references. By William 

 M. Gabb, September, 1859. 8vo. Pp. 1-20. (Issued with Proceed- 

 ings, XI, 1859.) 



Catalogue op the pishes op the Eastern Coast op North Amer- 

 ica, from Greenland to Georgia. By Theodore Gill. January, 

 1861. 8vo. Pp. 1-G3. (Issued with Proceedings, XIII, 1861.) 



A Memoir op 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 op 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. 1-33. 



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 ofConchology ; Structural and Systematic. With illustrations 

 of the species. By George W. Tryon, Jr. 8vo. I, Cephalopoda, 



1879, 316 pp., 112 plates. II, Muricidfe, including Purpuriua?, 



1880, 289 pp., 70 plates. Ill, Tritonidfe, Fusida, Buccinidte, 1881, 

 310 pp., 87 plates. IV, Nassid*, Turbinellidjie, Volutida?, Mitridse, 



1882, 276 pp., 58 plates. V, Margiuellidie, Olividie, Columbellidse, 



1883, 276 pp., 63 plates. VI, Conidic, Pleurotomidffi, 1884, 400 pp., 

 65 plates. VII, Terebrida\ Cancellariida*, Strombid:e, Cyprseidte, 

 Ovulid;T?, Cassididie, Doliid«, 1885, 309 pp., 75 plates. VIII, 



