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DCP-LETT-41

From:
Sarah Harriet Mostyn Owen; Sarah Harriet Williams; Sarah Harriet Haliburton
To:
Charles Robert Darwin
Date:
30 Mar [1828]
Source of text:
DAR 204: 60
Summary:

Caroline and Catherine Darwin were at the Forest a few days last week and Susan Darwin comes the next day. Mentions other relatives, friends, and acquaintances.

Contributor:
Darwin Correspondence Project

Herschel8075

From:
Thomas Young
To:
Sir John Herschel
Date:
[30 March 1828]
Source of text:
RS:HS 18.341
Summary:

Henry Kater not well [enough to travel] and requests committee meet at Kater's house. TY urges JH to verify W. H. Wollaston's measurement of refraction before republishing JH's essay. Diagrams Christiaan Huygens's principle of refraction. TY is making forms of aplanatic lenses.

Contributor:
John Herschel Project
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