Faraday to Hugh Welch Diamond¹   November 1847

Royal Institution, Novr. 1847.

My dear Sir,

I have removed a little of the surface of the glaze from a place at the bottom of the vessel outside, where it was thick, and find it to be, as you suspected a lead glaze. There is abundance of lead in it, with silver also, derived perhaps from the vessel itself, or perhaps added as part of the glaze².

Ever truly yours, | M. Faraday

To H.W. Diamond, Esq.