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Crookes, William in correspondent 
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From:
William Crookes
To:
Sir John Herschel
Date:
[20 July 1859]
Source of text:
RS:HS 5.309
Summary:

Thanks for his interesting communication to the Photographic News and for the spectra. Gives details of his own photographic experiments with Iodide of silver.

Contributor:
John Herschel Project
From:
William Crookes
To:
Sir John Herschel
Date:
[30 July 1859]
Source of text:
RS:HS 5.310
Summary:

His Daguerreotype arrived safely. Hopes to get some better photographs of the spectra before the end of the summer. Sees why their results differ.

Contributor:
John Herschel Project