Search: John Herschel in collection 
1820-1829::1821::01::01 in date 
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Herschel14774

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

Herschel5398

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

Herschel7793

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

Herschel14757

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

Herschel14636

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

Herschel8211

From:
Sir John Herschel
To:
Henry Kater
Date:
[1821 to 1822]
Source of text:
RS:HS 19.17 (C: RS:HS 25.13.21)
Summary:

Sends set of William Herschel's duplicated papers. Curious results 'examining the rings,' but bad weather has hampered experiments. Correction of spherical aberration. JH is using J. d'Alembert's Opuscules. Image of Alpha Lyrae.

Contributor:
John Herschel Project

Herschel3573

From:
Sir John Herschel
To:
Michael Faraday
Date:
[1821 or later]
Source of text:
RI 499-500 F3B
Summary:

Discusses origin and reactions of enclosed borate of lead. Postscripts on parallel strata in glass.

Contributor:
John Herschel Project

Herschel1141

From:
Sir John Herschel
To:
Mrs. Mary Frances Kater
Date:
[1821 to 1828]
Source of text:
RS:HS 25.13.22
Summary:

Accidentally found some verses on a scrap of paper, and wondered if it would fit the music of Cherry Ripe; sends verses to MK.

Contributor:
John Herschel Project

Herschel1142

From:
Sir John Herschel
To:
Mrs. Mary Frances Kater
Date:
[1821 to 1828]
Source of text:
RS:HS 25.13.23
Summary:

Asks MK's permission to allow a close friend to make use of the words once sent to her by JH as suitable for the music of Cherry Ripe.

Contributor:
John Herschel Project

Herschel9042

From:
Sir John Herschel
To:
William Whewell
Date:
[1821?]
Source of text:
TC, Camb. Add. Ms.a.20718 (C: RS:HS 21.36)
Summary:

Provides detailed travel suggestions for WW's planned trip to the continent. Asks WW to deliver letters to various European scientists.

Contributor:
John Herschel Project
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