—Can any one inform me if there are any letters extant of Arthur, seventh Lord Balmerino, and where they are deposited?
W. PELHAM A.
Rochester.
Portrait of Thomas Percy, Earl of Northumberland.
—Is any portrait known of Thomas Percy, Earl of Northumberland, who was beheaded at York, A.D. 1572, for the part he took in the "Rising in the North?"
E. PEACOCK, Jr.
Newtonian System.
—Is it known who was the author of a satirical pamphlet against Newton: The Theology and Philosophy in Cicero's "Somnium Scipionis" explained, London, 1751, 8vo.? And has an absurd story which it contains, relative to Newton, Locke, and Lord Pembroke visiting Patrick, the barometer-maker, to be shown that the mercurial vacuum was not a perfect one, ever been told elsewhere?
M.