NATURAL SCIENCES OF PHILADELPHIA. 



Mr. George W. Childs, Mr. George M. Woodward, Mr. Thomas Guil- 

 ford Smith, Mr. William Forster Jones, and the Rev. E. R. Beadle. 



Pursuant to the By-Laws, an election of members of the Standing 

 Committees for the ensuing year was held, as follows : 



ETHNOLOGY. BOTANY. 



J. A. Meigs, Elias Durand, 



S. S. Haldeman, C. H. Parker, 



F. V. Hayden. C. E. Smith. 



CO MP. AN AT. AND GEN. ZOOLOGY. 

 H. Allen, 



W. S. W. Ruschenberger, 

 J. H. Slack. 



MAMMALOGY. 



J. H. Slack, 

 E. D. Cope, 

 H. Allen. 



ORNITHOLOGY. 

 J. Cassin, 

 S. F. Baird, 

 Henry Bryant. 



IIERPETOLOGY AND ICHTHYOLOGY. 

 E. D. Cope, 

 Th. Norris, 

 Robert Bridges. 



CONCH OLOGY. 

 Geo. W. Tryon, Jr., 

 Isaac Lea, 

 T. A. Conrad. 



ENTOMOL OGY AND CR US TA CEA. 

 Jno. L. Le Conte, 

 J. H B. Bland, 

 H. C. Wood, Jr. 



GEOLOGY. 

 Isaac Lea, 

 J. P. Lesley, 

 F. V. Hayden. 



MINERALOGY. 



W. S. Vaux, 



J. C. Trautwine, 



J. A. Clay. 



PALAEONTOLOGY. 



T. A. Conrad, 

 Joseph Leidy, 

 F. V. Hayden. 



PHYSICS. 



Robert Bridges, 

 R. E. Rogers, 

 Jacob Ennis. 



LIBRARY. 

 Joseph Jeanes, 

 Joseph Leidy, 

 John Cassin. 



PROCEEDINGS. 

 Joseph Leidy, 

 W. S. Vaux, 

 John Cassin, 

 Robert Bridges, 

 Oeo. W. Tryon, Jr. 



February Qth. 



Mr. Vaux, Vice President, in the Chair. 

 Twenty-eight members present. 



The following was presented for publication : " A Critical Review of 

 of the Family Procellaridas," by Elliot Coues, M. 



D., U. S. A. 



Prof. E D. Cope presented to the Academy a specimen of Nautilus, obtained 

 by him from the owner of " Heritages," Marl Pits, Glassboro, New Jersey, who 

 stated to him that it had been found in those diggings. The identity of the 

 matrix with that surrounding specimens of Teredo tibialis, and Terebratula 



1868.] 



