338 [May. 



from the Natural History Society at Nuremberg; from the 

 Royal Bavarian Academy at Munich, each announcing the 

 transmission of their publications. 



A letter addressed to the President was read, signed J. 

 Vaughn Merrick, secretary, dated April 29, emanating from 

 the meeting of the committee of gentlemen held to consider 

 the subject of erecting various public buildings on Penn 

 Square. 



The death of Dr. George Frederick V. Jager, a member, 

 was announced as having occurred on September 18, 1866, 

 aged 80 years. • 



Dr. Hayden exhibited a series of photographs of the Da- 

 kota Indians. 



Prof. Cresson made some remarks on the subject of explo- 

 sions in mines, and described a recent explosion which took 

 place in a mine of the Salem Coal Company, Schuylkill 

 County, where the severity of the explosion was much in- 

 creased by the perfect ventilation of that mine. 



Pending nomination No. 578, and new nominations, Nos. 

 574 to 576 were read. 



The subject of the Michaux Legacy was discussed and re- 

 ferred to a special committee for investigation. 



On motion of Mr. Fraley, 



Resolved, That the Society approve of the project of appropriating 

 the Penn Squares as sites fur the buildings of institutions named in 

 the resolution of the committee presented at this meeting, and that a 

 committee be appointed to confer with like committees from other 

 institutions, and to co-operate with them in carrying the proposed 

 plan into effect. 



And Prof. Cresson was added to the committee. 

 On motion of Prof. Cresson, ordered, that fifty dollars ad- 

 ditional be appropriated for Indian photographs. 

 And the Society was adjourned. 



