298 William Rowan Hamilton. 
still more so because they serve to encourage the student to per- 
severe in his researches, animated by the fullest conviction that 
if truthfully conducted they can only land him in truth, and 
eaving the cut bono to be determined by the appreciations, or 
the wants, or the curiosities, of men in time to come. 
e Royal Irish Academy took cognizance of Hamilton’s 
their appreciation of his merits. In 1837 he was elected Pres- 
ident of the Royal Irish Academy, succeeding’ his friend and 
early patron, Dr. Brinkley, in the chair, as he had succeeded him 
i e Professorship of Astronomy. He retained this distin- 
guished office for eight years, and on his resignation he received 
the thanks of that eminent-Academy “for his high and impar- 
tial bearing in the chair.” 
In 1834 and 1885 he communicated to the Royal Society two 
papers on “ A General Method in Dynamics.” Here, again, he 
commenced with the same fundamental idea, as that which he 
had already so successfully adopted in his “Theory of Systems 
ates, (codrdinates at the time ¢), the other, those in regard to the 
fying a single partial differential equation; and he considers that 
. 
* Dr. Lloyd, sen., was President for two years after the death of the Bishop of 
Cloyne. Hamilton succeeded Lloyd, 
