330 PROCEEDINGS OF THE ACADEMY OF [1892. 



the ends into a loose open network ; threads from 3-7 /x in thickness 

 at basal point of attachment tapering to a point at their attachment 

 to the sporangial wall, 



Hypothallus ochre yellow, calcareous, thick and continuous when 

 the sporangia are sessile, but scanty when they are stipitate. 



October 25. 

 The President, General Isaac J. Wistar, in the Chair. 



Sixty persons present. 



The following were elected members : — 



Wm. L. Du Bois, Ann May Whartenby, John T. M. Cardeza, M. D., 

 Samuel Castner, Jr., Mary Vaux, George M. Woodward, Aldrich 

 J. Pennock, Philip P. Calvert, Thomas Earle White, Ralph F. 

 Cullinan, John A. Shulze and George Vaux, Jr. 



The following were ordered to be printed ; — 



