NATURAL SCIENCES OF PHILADELPHIA. 



ANTHROPOLOGY. 



J. Aitken Meigs, 

 F. V. Hayden, 

 Henry S. Schell. 



COMPARATIVE ANATOMY. 

 Harrison Allen, 

 J. H. McQuillan, 

 Jos. Leidy. 



MAMMALOGY. 

 Harrison Allen, 

 E. D. Cope, 

 H. M/ Bellows. 



. ORNITHOLOGY. 

 B. Hoopes, 



W. P. TURNBULL, 



E. Shepparp. 



HERPETOLOGY. 



E. D. Cope, 

 Harrison Allen, 

 S. B. Howell. 



ICHTHYOLOGY. 



E. D. Cope, 

 Tiiaddeus Norris, 

 J. H. Redfield. 



ART ICU LATA. 



G. H. Horn, 



R. S. Kenderdine, 



H. M. Bellows. 



RAD I AT A. 



G. H. Horn, 

 J. G. Hunt, 

 R. S. Kenderdine. 



LIBRARY. 

 Jos. Leidy, 

 ' W. P. Turnbull, 

 Robt. Bridges. 



Dr, Chas. T. Hunter was elected a member. 



BOTANY. 

 E. DURAND, 



Tiios. Meehan, 

 Isaac Burk. 



vertebrate pal&ontoloq v 

 Jos. Leidy, 

 E. D. Cope, 

 Harrison Allen. 



INVERTEBRATE PAL.E0XT01. V. 

 T. A. Conrad, 

 W. M. Gabb, 

 H. C. Wood, Jr. 



MINERALOGY. 

 Wm. S. Vaux, 



E. GOLDSCHMIDT, 

 JOS. WlLLCOX. 



STRA T1GRAPHIC GEOLOG Y. 

 J. P. Lesley, 

 B. S. Lyman, 



F. V. Hayden. 



PHYSICS. 



R. E. Rogers, 

 J. F. Frazer, 

 J. Warner. 



CHEMISTRY. 

 F. A. Genth, 

 R. Bridges, 

 E. Goldschmidt. 



INSTRUCTION AND LECTURES. 

 R. S. Kenderdine, 

 Wm. Mayburky, 

 H. M. Bellows. 



Feb. 1st. 

 The President, Dr. Ruschenberger, in the Chair. 

 Twenty-five members present. 

 The following paper was presented for publication : 

 1870.] 



