Faraday to Peter Henry Berthon   13 September 1858

Hampton Court | 13. Septr. 1858.

Sir

I have examined the apparatus intended for the Needles lighthouse. It is so like in character to that for the Bishops rock recently reported upon¹ that I have nothing to add except that the remarks I then had occasion to make respecting the adjustment of the parts of the central bands have here no application - all is in excellent order & the apparatus unexceptionable[.] It of course has the green colour of the former; but with that it is to be presumed that it has the extra hardness & the relative freedom from Striae[.]

I take the liberty of stating that it would be a very great advantage in the examination of these apparatus if they could be placed on a revolving platform at one end of the room[.] This would give the greatest distance possible & allow of the examination of every part in turn. The platform would be moveable need not be of larger diameter than the apparatus & not more than from 4 to 6 inches in height if indeed so much²[.]

I have the honour to be | Sir | Yours Very faithfully | M. Faraday

P.H. Berthon Esqr | &c &c.