R Institution | 31 Octr 1844
Dear Grove
I cannot by any possibility leave here tomorrow after 2 oclk & am very sorry for it. But you will shew me the experiment afterwards[.] I have heard of it imperfectly from Manchester1 but as I heard of it suspect it is merely some conduction of the sound of the snap at the place of making or breaking contact &c &c2.
Ever Truly Yours | M. Faraday
Until after Monday 3 I am close shut up in my own experiments4.
MARRIAN, J.P. (1844): “On Sonorous Phaenomena in Electro-Magnets”, Phil. Mag., 25: 382-4.
Please cite as “Faraday1639,” in Ɛpsilon: The Michael Faraday Collection accessed on