Peter Henry Berthon to Faraday   25 February 1862

Trinity House, London, E.C., | 25th February 1862.

Sir,

I am directed to transmit to you the accompanying Four Samples of White Lead, and to request you will be so good as to analyse the same, and favor me with the results for the Board’s information.

I am, | Sir, | Your most humble Servant, | P.H. Berthon

Professor Faraday | &c &c &c