Jacob Herbert to Faraday   9 April 1847

Trinity House London, | 9th April 1847.

Sir,

Adverting to my Letter of the 9th January last¹, I now beg to forward you a further Sample of water which has been obtain'd from the Bardsey Light Establishment, and to request that you will favor me, for the information of the Board, with your opinion as to it's fitness for drinking or culinary purposes.

I beg to add, in reply to the Enquiry made by you², that the Corporation's Agent reports that the Well at Bardsey Island, from which this water is taken, is not situated near a Cess Pool, Ditch, or known Drain.

I am, | Sir, | Your most humble Servant | J. Herbert

M. Faraday Esqre | &c &c &c

Address: M. Faraday Esqre | &c &c &c | Royal Institution, | Albemarle Street.