PHOTOGRAPHIC SOCIETY LONDON
April 21st 1871.
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35 Grosvenor Road,
Highbury New Park, N.
H. Fox Talbot Esqre
Dear Sir,
I am writing a paper descriptive of the relative affinities of chlorine, bromine, and iodine for silver, in which I propose to make reference to some critical points affecting the decomposition of these bodies under the action of light, and I should feel obliged if you will kindly let me know your opinion on the following question – Whether there is any truth in the supposed greater sensitiveness of Talbotype paper (pure iodide of silver) which has been s<illeg>ned previously to sensitising it with the gallo-nitrate. I remember a statement being made by the late Mr T. A. Malone to the effect that superior results and greater rapidity were to be got in this way, but not being sure that I am correct in stating the conditions beg leave to refer the point for your opinion –
The paper will, if time serves, be read at the May meeting of the Photographic Society, which now seems once more gaining in popularity – We have full attendance, and much interesting matter offered – How I wish we could have the honour of enrolling your name as one of our members –
I am, Sir,
Yours respectfully
John Spiller
Hon. Sec.
35 Grosvenor Road,
Highbury New Park, N.
P.S.
By Book Post I am sending you a copy of the Journal and one of my recent papers containing some important facts respecting the properties of Silk –
J. Spiller