Search: 1850-1859::1850::05::20 in date 
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Herschel4140

From:
Ebenezer Henderson
To:
Sir John Herschel
Date:
[20 May 1850]
Source of text:
Harvard: Houghton AAH 67m-67 (51)
Summary:

Requests JH's opinion on his calculation on 'solar and sidereal ratios.'

Contributor:
John Herschel Project

DCP-LETT-1328

From:
Charles Robert Darwin
To:
Johan Georg Forchhammer
Date:
20 May [1850]
Source of text:
University of Copenhagen, Mineralogical Museum Archives
Summary:

Thanks JGF for geological information.

Steenstrup’s cirripede specimens have been of great use and interest. CD has now described 33 fossil pedunculated cirripedes.

Contributor:
Darwin Correspondence Project
Text Online

Faraday2290

From:
Michael Faraday
To:
James Walker
Date:
20 May 1850
Source of text:
SI D MS 554A
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday2289

From:
Michael Faraday
To:
Thomas Romney Robinson
Date:
20 May 1850
Source of text:
ULC Add MS 7656, TR57
Summary:

No summary available.

Contributor:
Faraday Project

DCP-LETT-1329

From:
Charles Robert Darwin
To:
Royal Geographical Society
Date:
20 May [1850]
Source of text:
Royal Geographical Society
Summary:

Asks for whatever numbers, since 1845, of the Journal [of the Royal Geographical Society] he, as a Fellow, is entitled to receive gratis.

Contributor:
Darwin Correspondence Project

DCP-LETT-1330

From:
Charles Robert Darwin
To:
Johannes Japetus Smith (Japetus) Steenstrup
Date:
20 May [1850]
Source of text:
Det Kongelige Bibliotek, Copenhagen (NKS 3460 4to)
Summary:

Describes progress in illustration of fossil cirripede specimens. Thanks for answers to questions. Comments on hermaphroditism. Describes his discovery of parasitic male cirripedes.

Contributor:
Darwin Correspondence Project
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