Faraday to Angela Georgina Burdett Coutts 19 October 1846

R Institution | 19 Octr. 1846

My dear Miss Coutts

I sent you some results of my experiments & judgment some time ago but fear they may not have come to hand: if that should be the case you must let me know & I will restate them[.] I should be very sorry if my reply to yours has not reached you. The penny post is by no means so sure as the old post was[.]