Regrets he cannot comply with request because of his work and poor health.
Delighted to have seen correspondent’s "wonderful experiment" at Royal Society.
Regrets he cannot comply with request because of his work and poor health.
Delighted to have seen correspondent’s "wonderful experiment" at Royal Society.
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Thanks WC for a copy of a paper published by WC in the P.M.
Comments on various specimen photographic papers JH is sending; JH believes he has isolated a metal he wants to call 'Junonium.'
Has just returned home and found the Photographic News and the queries regarding chemical experiments and photography. Gives details, but regrets he has not published much on it yet as he is still experimenting.
Sends spectra obtained by Ioduret of potassium. Gives details of his latest photographic experiments.
No summary available.