June 24th 1834.
My dear Sir,
I have, I am sorry to say, but very little acquaintance with the subject of Light but I shall nevertheless be very much gratified in witnessing your experiments, and will wait on you, about a fortnight hence, on any evening you shall appoint I have no doubt that my friend & Colleague Dr Roget, <1> would also have great pleasure in seeing your experiments & he is very conversant with the subject
Ever My dear Sir, faithfully Yours [sic]
John Geo. Children
1. Dr Peter Mark Roget (17791869), scientific writer.