286 MEMOIR OF AUGUSTUS DE MORGAN. 



1865. some brilliant mathematical discoveries by Professor 

 Sylvester were communicated to it soon after its founda- 

 tion. 



In 1866 George was teacher of Mathematics in Uni- 

 versity College School, and in January 1867, the last year 

 of his life, the Tract On the Proof of any Function, and on 

 Neutral Series, read before the Cambridge Philosophical 

 Society the year before, has this note appended to it : 

 ' My son Mr. G. C. De Morgan recently showed me this 

 case of failure of development.' The algebraic operation 

 is given. 



His father had a high opinion of the power of George's 

 mind, which in some ways resembled his own. Our friend 

 M. Libri called him Daniel Bernouilli, in reference to the 

 two Bernouilli s, father and son. It gave his father plea- 

 sure to think that although he died so young, his son's 

 name should have been associated with his own. 



