ISO 



ciety, at Leeds ; Boston Society of Natural History ; Yale 

 College, Peabody Aluseum, Silliman's Journal ; the New 

 Jersey Historical Society ; the Penn Monthly, American 

 Chemist, Journal of Pharmacy, and Franklin Institute, in 

 Philadelphia; Peabody Institute, in Baltimore; War De- 

 partment, Washington, and the Buft'alo Society of ISTatural 

 Sciences. 



The death of Dr. Gouverneur Emerson, July 2, aged 78 

 was announced by Dr. Ruschenberger. 



Dr. Genth read a communication in answer to criticisms 

 by Dr. Hunt upon his paper upon Corundum, published in 

 the Proceedings of the Society. 



Dr. Charles M. Cresson communicated the results of an 

 examination of an exploded locomotive boiler, with detailed 

 accounts of experiments in reference to the causes of explo- 

 sion. 



IVof. Frascr communicated a note on certain formulae of 

 minerals, with reference to the question whether separate 

 chemical compounds can co-exist in the same crystallized 

 mineral. 



Pending nominations, Nos. 753, 754, 755, 756, 757, 758 

 were read, and Nos. 753, 754 and 756 balloted for, and the 

 following named persons were declared by the presiding 

 officer duly elected members of the Society, viz. : 



Sir Wm. George Armstrong, of Newcastle-on-Tyne. 



Mr. Franklin Piatt, of Philadelphia. 



Mr. Henry Woodward, F.G.S., of London. 



And the meeting was adjourned. 



Stated Meeting, August 21.5^, 1874. 



Present, 3 members. 



Vice-President, Mr. Fraley, in the chair. 



Dr. Genth presented a paper for publication in the Pro- 

 ceedings, entitled : — " Contributions from the Laboratory of 



