91 •> 



-> L - J [March 21, 



Mr. Haupt exhibited photographs of the apparatus of the 

 Pneumatic Tramway Engine Company, and read extracts 

 from a report to show the greater economy and efficiency of 

 this method of propulsion by compressed air, over the results 

 obtained by the use of horse- power. 



Pending nomination No. 872, and new nominations Nos. 

 874, 875, 876 and 877 were read, and the meeting was ad- 

 journed. 



Stated Meeting, March 21, 1879. 



Present, 13 members. 



Vice-President, Mr. Fkaley, in the Chair. 



A letter accepting the appointment to prepare an obituary 

 notice of the late Judge John Cadwalader, was reeeived 

 from Mr. Peter McCall, dated March 13th. 



Letters of acknowledgment were received from the Prague 

 Observatory (101) ; the Meteorological Institute, Vienna 

 (101) ; the Lisbon Academy (100 ; List) ; and the American 

 Antiquarian Society, Worcester, Mass. (101). 



Letters of envoy were received from Mr. W. B. Rawle, 

 dated Philadelphia, March 7, 1879; and from the U. S. 

 Naval Observatory, Washington, D. C, March 17, 1879. 



Donations for the Library were received from the Mel- 

 bourne Mining Department ; Imperial Society of Natural- 

 ists, Moscow ; Central Bureau of Statistics, Stockholm ; R. 

 Prussian Academy ; Zool. Anzeiger, Leipsig ; Revue Poli- 

 tique, Paris; Society of Commercial Geography, Bordeaux; 

 Victoria Institute, and Nature, London , Literary and Philo- 

 sophical Society, Quebec ; Essex Institute ; Mass. Historical 

 Society ; Boston Natural History Society; American Anti- 

 quarian Society, Worcester ; Franklin Institute; Mr. Wm. 

 Brooke Rawle of Philadelphia; U. S. Geol. and Geog. Sur- 

 vey ; U. S. Naval Observatory ; Dr. A. C. Peale ; Mercantile 



