From:
Sir John Herschel
To:
William Whewell
Date:
[21 July 1842]
Source of text:
TC, Camb. Add. Ms.a.20754 (C: RS:HS 22.131)
Summary:
[Same message as JH's letter of 1842-7-21, but sent to a second location.]
Contributor:
John Herschel Project
Showing 21–22 of 22 items
[Same message as JH's letter of 1842-7-21, but sent to a second location.]
Goes into considerable detail in providing information about the business organization of the Munich lens makers, and the high quality of their lenses. Urges the benefits of achromatic lenses, and sends MC some specimens of JH's photography.