450 



[April 2, 



Society; Prof. W. Henry Green of Princeton, N. J.; Mr. "Wm. 

 John Potts of Camden, N. J.; Pennsylvania Hospital, The Nu- 

 mismatic and Antiquarian Society, College of Physicians, Prof. 

 J. P. Lesley, Dr. Persifor Frazer, Messrs. Samuel Wagner, 

 Henry Phillips, Jr., and Dr. Isaac Norris of Philadelphia ; Mr. 

 Thomas Meehan of Germantown ; Dr. E. H. Alison of Ardmore, 

 Pa.; Profs. Pliny Chase and L. B. Hall, Haverford College; 

 Hon. W. Townsend of West Chester ; Eev. J. A. Murray of 

 Carlisle; the Wyoming Historical and Geological Society; 

 Profs. Traill Green and J. W. Moore of Easton; U. S. Naval 

 Institute ; the Signal Office, and the Surgeon-General's Office, 

 and Prof. J. H. C. Coffin of Washington ; Leander McCormick 

 Observatory ; Virginia Historical Society ; Prof. J. W. Mallet 

 and Messrs. Scheie de Yere and Jed. Hotchkiss of Virginia ; 

 Georgia Historical Society ; Cincinnati Society of Natural 

 History ; Prof. James Morgan Hart, of Cincinnati ; Prof. Leo. 

 Lesquereux of Columbus, Ohio ; Dr. Eobert Peter of Lexing- 

 ton, Ky.; Prof. Daniel Kirkwood of Bloomington, Ind.; Chicago 

 Historical Society; Prof. Henry S. Frieze of Ann Arbor, 

 Mich.; State Historical Society of Wisconsin ; Kansas Histori- 

 cal Society. 



Dr. Frederick S. Krauss, of Vienna, acknowledged the receipt 

 of his separata; Academia Eoyale Danoise des Science et Lettres 

 (117, 118, 119); Societe de Physique et d'Histoire Naturelle, 

 Geneva (115, 116); Sig. G. Battista Eossi of Eome, Italy (117, 

 118, 119) ; Mr. Eobert N. Toppan, of Cambridge, Mass. (117, 

 118, 119, 120, 121, 122); Lieut. A. B. Wyckoff, Drs. Charles 

 A. Oliver and J. W. Holland of Philadelphia (121, 122); Mr. 

 Heber S. Thompson of Pottsville, Pa. (Diploma and 122) ; Eev. 

 Thos. C. Porter of Easton, Pa. (121, 122). 



Committee on Prof. Cope's paper was continued. 



Lieut. Wyckoff read a paper on the Use of Oil in Storms at 

 Sea. 



Mr. Ashburner gave a review at some length of the struc- 

 tural geological features attending the occurrence of natural 

 gas. 



