90 bulletin of the 



62d Meeting. October 4, 1813, 



The President in the Chair. 



The President alluded to the loss the Society had just sustained 

 by the death of Prof. G. C. Schaeffer, a member of the Society 

 and one of the oldest members of the original club. The follow- 

 ing resolutions were then adopted, as reported by Mr. W. B. 

 Taylor from the general committee r — 



Whereas, we have heard with profound regret of the decease 

 of our esteemed friend and colleague, Professor George C. 

 Schaeffer — 



Resolved, That while we have to deplore the death of an asso- 

 ciate personally endeai-ed to us, we feel that our Society has sus- 

 tained the loss of one who was for many years earnestly devoted 

 to the cultivation and promotion of general science. 



Resolved, That we hereby express our high appreciation of the 

 eminent abilities of our departed friend, and of the unusually 

 wide and varied range of his scientific attainments. 



Resolved, That we tender our sincere sympathy to his family 

 in their bereavement, and that the Secretary of the Society be 

 directed to transmit to them a copy of these resolutions. 



After further remarks by Mr. J. E. Hilgard the Society then 

 adjourned. 



53d Meeting. October 18, 18T3. 



The President in the Chair. 



Mr. J. E. Hilgard gave an account of 

 recent experimental researches in acoustics, by prop. a. m. 



MAYER. 



Lieut. C. B. Button made a communication 



on mallet's theory op the formation of the physical fea- 

 tures OF the earth. 



Mr. Joseph Henry gave an account of his 

 experiments on fog signals during the past summer. 



