Peter Henry Berthon to Faraday   19 March 1862

Trinity House, London, | E.C. | 19th March, 1862.

Sir,

I am directed to submit to you the accompanying observations offer’d by Mr. Walker in relation to the drawing prepared by Messrs. Chance, and I am to state that, if you agree to the alterations suggested by Mr. Walker, the Board propose to adopt them, and to direct the Dioptric Apparatus for fixed Lights to be constructed accordingly.

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

Professor Faraday. | &c &c &c

Endorsed by Faraday: 1862 March – To & fro correspondence – Chances observation on Walkers observations (Mar 29.) Saw Deputy Master¹ Mar 31.