436 Miscellaneous Intelligence. 
in connection with the planetary theory, his analysis of the 
Saturnian system, his researches regarding the lunar theory, and 
the profound criticism of the discovery of Neptune following the 
investigations of Adams and of Leverrier. As a mathematician, 
his work on Analytical Mechanics, his treatise on Curves, Func- 
tions and Forces, and ol near Associative Algebra 
all evince extraordinary originality and genius. Many of his 
detached papers, relatin the t of observing, and the 
solution of special problems, show an appreciation of the needs 
in applied mathematics which perhaps has not been exhibited by 
the same order of genius since the death of his friend and ad- 
mirer, Gauss. His originality was fostered by his habit of exam- 
apers 5 but 
showed such a penetrating discernment of the conditions of a 
problem, he made such sagacious suggestions regarding the infer- 
ences to be drawn from the data before him, he showed such a 
ble; notably the second volume of his “Curves, Functions and 
and his memoir on “Linear Associative Algebra.” 
L. Ww. 
Witiiam Lassevt, F.R.S., the distinguished astronomer, and 
eminent in connection with the history of reflecting telescopes, 
died on the 4th of October, in the 82nd year of his age. 
