Royal Society

20, Aug^t 1839.

Sir,

I am directed to acquaint you that the Committee which has been summoned for Thursday next at 12 O'clock will meet at the New Laboratory Royal Arsenal Woolwich (where the whole of the magnetical Instruments will be seen) on that day at one O'clock, instead of meeting at Somerset House, as originally proposed.

I have the honor to be, sir,
Your obed^t servant

Jn^o D^d Roberton
Asst. Sec^y R. S.

P.S. Several members of the Committee (Mess^rs Whewell, Daniell, Lloyd, Forbes, and Wheatstone) ^<1> propose leaving by the Woolwich Steamer at Eleven O'clock, A.m. from Hungerford market, which will reach Woolwich about ½ past 12.

H. F. Talbot Esq^re

W^m H^y Fox Talbot, Esq^re
31 Sackville Street
R.S.

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Notes:

1. Rev William Whewell (1794-1866), Master of Trinity College, Cambridge, Professor and natural philosopher; possibly John Frederic Daniell (1790-1845); Hannibal Evans Lloyd (1771-1847), philologist; Prof James David Forbes (1809-1868), Scottish scientist; Sir Charles Wheatstone (1802-1875), scientist.