OO BULLETIN OF THE 



Resolved, That in this event we recognize with profound emo- 

 tion the dispensation of Divine Providence, which has unexpect- 

 edly deprived the Society of one of its most distinguished mem- 

 bers, and the nation of a jurist, patriot, statesman, philanthropist, 

 and Christian ; whose name, when the course of time is run and 

 the final history of the American Republic shall have been writ- 

 ten, shall be classed with those of Washington and Lincoln, and 

 of all those eminent men who by Providence have been raised 

 up for special crises of the Republic, and endowed with extraor- 

 dinary qualifications for national and extreme emergencies, and 

 as such his memory will be cherished by this Society. 



Resolved, That as a token of our deep sense of the solemn 

 event, and of our great esteem for our departed associate, the 

 Society now adjourn. 



Resolved, That a copy of these Resolutions be conveyed to the 

 bereaved and deeply afflicted relatives. 



48th Meeting. May 11, 1873. 



The President in the Chair. 

 Mr. J. J. Woodward read a portion of a letter from Dr. B. A. 

 Gould, Director of the National Observatory at Cordoba, giving 

 an account of the progress of his astronomical work. 



Mr. C. S. Peirce made a communication 



ON LOGICAL ALGEBRA. 



{This paper is published in full in the Memoirs of the American Academy of 

 Arts and Sciences.') 



Mr. A. Hall read a paper 



ON THE RECTILINEAR MOTION OP A PARTICLE TOWARDS AN AT- 

 TRACTING CENTRE. 



(jT/a's communication is published in the "Messenger of Mathematics," Dec. 



1873.) 



Mr. G. K. Gilbert read a paper 



on the use of the canons op the colorado for weighing the 



earth. 



