Faraday to R. Cole   23 March 1840¹

Royal Institution | 23 Mar 1840

Sir

The Exchange Tally we had² was from the United Services Institution at Whitehall - and I have no doubt you will be able to have access to it, if not the loan of it by application. Perhaps you had better address your communication to L.H. Tonna³ Esq who has charge of the Establishment[.]

I am Sir | Your Obedient Servant | M. Faraday

R. Cole Esq | &c &c &c