Search: Herschel, John in addressee 
1820-1829::1821::01::01 in date 
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From:
[J.?] Henry
To:
Sir John Herschel
Date:
[1821
Source of text:
TxU:H/M-1002; Reel 1083
Summary:

Compares observed times of rocket bursts at observatory and at Blackman St.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[1821?]
Source of text:
RS:HS 2.345
Summary:

Can JH deputize for him at the Astronomical Society meeting?

Contributor:
John Herschel Project
From:
Henrik Johan Walbeck
To:
Sir John Herschel
Date:
[1 January 1821]
Source of text:
unknown
Summary:

Further eclipse observations from around the world [see HW's 1820-7-30].

Contributor:
John Herschel Project
From:
James South
To:
Sir John Herschel
Date:
[1821]
Source of text:
TxU:H/M-0946.1; Reel 1083
Summary:

Sends three chronometers set to Blackman St. time. Confirm them by a transit of Arcturus tomorrow, then return them to JS at Blackman St. Gives times for next rocket firings.

Contributor:
John Herschel Project
From:
Mary Pitt Herschel
To:
Sir John Herschel
Date:
[1821]
Source of text:
TxU:H/M-0620.4; Reel 1086
Summary:

William Herschel is glad that JH declined offer for WH to become commissioner of longitude. Hopes JH enjoys visit with James South and family.

Contributor:
John Herschel Project