Faraday to Henry William Pickersgill   1837

R Institution | Wednesday

My dear Sir

I have done as you desired through almost afraid to do so lest it should be thought quackery of me[.] But I could not refuse you[.]

Ever Truly Yours | M. Faraday

J.[sic] W. Pickersgill Esq | &c &c

Endorsement: 1837.