Trinity House. London. E.C. | 21st. April. 1864
Sir,
The Lighting Apparatus for Light Houses in the River Gambia being now ready for inspection at the premises of Messrs. Wilkins & Co. in Long Acre, I am to prefer the request of the Elder Brethren that you will, at your early convenience, inspect the same and report to me on the quality and accuracy of the Instruments.
I am, | Sir, | Your most humble Servant, | P.H. Berthon
Professor Faraday | &c &c &c | Royal Institution
Please cite as “Faraday4449,” in Ɛpsilon: The Michael Faraday Collection accessed on