PROCEEDINGS 



OF TIIK 



ACADEMY OF NATURAL SCIiNCiS 



OF 



PHILADELPHIA. 



No. 1.— Jan., Feb., Mar. and April, 1869. 



PHILADELPHIA: 



ACADEMY OF NATURAL SCIENCES, 



Corner of Broad and Sansom Streets. 



1869. 



Merrihew & Son, Printers, 243 Arch St., Philadelphia. 



