Jacob Herbert to Faraday   11 February 1847

Trinity House, London. | 11th February 1847.

My dear Sir,

I am directed¹ to transmit to you the accompanying Copy of a Letter from Mr. George Herbert dated 28th Ultimo² in relation to a Method which he has devised for rendering the Argand Lamp applicable to the burning of Rape Seed Oil, and to signify the Request of the Board that you will make trial of the said Lamp and report your Opinion of its Qualities, and the Advantages which it is calculated to afford, both practically and economically, in burning Rape Seed Oil for Light House purposes.

I also send herewith the Lamp refered to in Mr. G. Herbert's Letter, with a supply of Rape Seed and Sperm Oils, with both bleached and unbleached Cotton Wicks, and should you not be provided with a Standard Argand Lamp for burning Sperm Oil, I will on hearing from you to that effect, immediately cause one to be sent to you.

I remain | My dear Sir, | Your very faithful Servant | J. Herbert

M. Faraday, Esq.