R Institution | 20, Nov 1839
My dear Sir
I am very much obliged by your papers1 & references the facts are too valuable to be left out of ones memory & mine is but a bad one[.]
When shall you be in town again? I send a card of the Friday Evening dates - but can make no precise settled arrangement at present but generally when shall you be in town.
Ever Truly Yours | M. Faraday
W.R. Grove Esq | &c &c &c
Please cite as “Faraday1218,” in Ɛpsilon: The Michael Faraday Collection accessed on