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From:
Adolphe Quetelet
To:
Sir John Herschel
Date:
[19 February 1840]
Source of text:
RS:HS 14.218
Summary:

Sends publications from Royal Academy and Brussels Observatory. Asks 'particular indulgence' for one about vapors. Is now able to do observations required by R.S.L. A Gauss instrument has been mounted. Gives times of observations each day. Continues horary observations.

Contributor:
John Herschel Project
From:
Francis Baily
To:
Sir John Herschel
Date:
[19 February 1840]
Source of text:
RS:HS 3.176
Summary:

They should not refuse H. C. Schumacher's request. Regarding a diploma for the King of Denmark.

Contributor:
John Herschel Project
From:
Henry Anthony Jeffreys
To:
Sir John Herschel
Date:
[1840 or later]-2-19
Source of text:
Harvard: Houghton AAH 67m-67 (63)
Summary:

Asks JH to be a member of a parish committee.

Contributor:
John Herschel Project
From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[19 Feb 1840]
Source of text:
American Philosophical Society (Mss.B.D25.21)
Summary:

Remarks on his illness and treatment.

Discusses MS [of Coral reefs] and changes in his view of coral reefs since Journal of researches. Mentions C. G. Ehrenberg’s observations on coral reefs.

Contributor:
Darwin Correspondence Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[19 February 1840]
Source of text:
RS:HS 12.124
Summary:

Work will begin on obelisk at Feldhausen. Occultation of Gamma1 and Gamma2 Virginis observed. Triangulation survey will take TM away from Royal Observatory for extended time. Slave ship carries small pox and causes outbreak. Parallax observations show brightest stars, not nearest.

Contributor:
John Herschel Project