Search: Herschel, John in addressee 
1820-1829::1826 in date 
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From:
Charles Babbage
To:
Sir John Herschel
Date:
[17 August 1826]
Source of text:
RS:HS 2.203
Summary:

Has been to the observatory. New comet discovered. Has met P. S. Laplace. Does he know of any tables of logarithms to 10,000?

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[24 November 1826]
Source of text:
RS:HS 2.205
Summary:

Has just returned from collecting information on machines. Regarding the Lucasian professorship at Cambridge. Has met a clockmaker who is able to work on his machine.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[14 December 1826]
Source of text:
RS:HS 2.206
Summary:

Would like to spend Christmas with him. Does he want a Newfoundland puppy?

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[16 December 1826]
Source of text:
RS:HS 2.207
Summary:

Regarding Mr. Moreau and his certificate. Recent happenings at the R.S.L. Has been pheasant shooting.

Contributor:
John Herschel Project
From:
John Brinkley
To:
Sir John Herschel
Date:
[18 March 1826]
Source of text:
RS:HS 4.280
Summary:

Thanks for his valuable communications. His theory regarding the method of determining the difference of parallax is ingenious. Regarding the difference in observations of certain stars between Dublin and Greenwich. Returns G. A. A. Plana's letter and comments on this. Has not yet printed his paper on fixed stars.

Contributor:
John Herschel Project
From:
Francis Baily
To:
Sir John Herschel
Date:
[2 March 1826]
Source of text:
RS:HS 3.63
Summary:

Thanks for the loan of his paper on the parallax. Regarding Wilhelm Struve's paper.

Contributor:
John Herschel Project
From:
Francis Baily
To:
Sir John Herschel
Date:
[1 April 1826]
Source of text:
RS:HS 3.64
Summary:

Is sending his paper on the aberration so that it can be laid before the Board of Longitude. Also sending new table for the measurement of heights by means of the barometer. Regarding the distribution of the Memoirs to Associates.

Contributor:
John Herschel Project
From:
Niccolo Cacciatore
To:
Sir John Herschel
Date:
[12 December 1826]
Source of text:
RS:HS 5.137
Summary:

Thanks for instruments and books. Death of Prof. Giuseppe Piazzi. Returns instruments for repair. Books have not reached him. Sends first volume of one of his own works.

Contributor:
John Herschel Project
From:
Georges C. L. D. Cuvier
To:
Sir John Herschel
Date:
[11 September 1826]
Source of text:
RS:HS 5.384
Summary:

Has received the gift of books for which he is grateful. They have been placed in the library.

Contributor:
John Herschel Project
From:
William Hyde Wollaston
To:
Sir John Herschel
Date:
11 October] [1826
Source of text:
RS:HS 18.286
Summary:

Previous engagement prevents WW witnessing experiment of A. M. Ampère tomorrow. Waits for JH's report. Hopes to see JH at [Georges] Cuvier's tomorrow.

Contributor:
John Herschel Project
From:
James Wood
To:
Sir John Herschel
Date:
[16 October 1826]
Source of text:
RS:HS 18.292
Summary:

Wanted [JH] to become Lucasian Professor of Mathematics, but electors favor one of Heads. This will also operate against Charles Babbage.

Contributor:
John Herschel Project
From:
James Wood
To:
Sir John Herschel
Date:
[2 December 1826]
Source of text:
RS:HS 18.294
Summary:

Restriction to reside constantly [at Cambridge] may deter Charles Babbage from position of Lucasian Professor.

Contributor:
John Herschel Project
From:
Thomas Young
To:
Sir John Herschel
Date:
[1826 to 1829]
Source of text:
RS:HS 18.354
Summary:

Errors in equinoctial time calculated by John Pond. Suggests limiting decimal places in value of equinoctial time to reflect this uncertainty. Making error uniform will make it awkward to alter future almanacs.

Contributor:
John Herschel Project
From:
Thomas Young
To:
Sir John Herschel
Date:
[1826 to 1829]
Source of text:
RS:HS 18.356
Summary:

Resolved puzzle about sidereal year, which needs better definition. Error between true and nominal positions prevents TY adopting 'equinoctial time' for chronology investigations.

Contributor:
John Herschel Project
From:
Thomas Young
To:
Sir John Herschel
Date:
[1826-6 or earlier]
Source of text:
RS:HS 18.358
Summary:

J. J. Littrow's paper in F. X. von Zach's April [Correspondence astronomique, géologique, hydrographique et statistique] is only 'a new hash' of [F. W.] Bessel and no improvement.

Contributor:
John Herschel Project
From:
Thomas Young
To:
Sir John Herschel
Date:
[1826-6 to 1829-5]
Source of text:
RS:HS 18.359
Summary:

Send plan of furnace to TY or Michael Faraday before tomorrow's committee meeting.

Contributor:
John Herschel Project
From:
William Whewell
To:
Sir John Herschel
Date:
[11 April 1826]
Source of text:
RS:HS 18.165
Summary:

Describes plan to carry out pendulum experiments with G. B. Airy. Asks JH for help in borrowing instruments from the R.S.L.

Contributor:
John Herschel Project
From:
William Whewell
To:
Sir John Herschel
Date:
[13 June 1826]
Source of text:
RS:HS 18.166
Summary:

Describes the pendulum experiments he and G. B. Airy are carrying out in Dolcoath Mine.

Contributor:
John Herschel Project
From:
William Whewell
To:
Sir John Herschel
Date:
[1 July 1826]
Source of text:
RS:HS 18.167
Summary:

Reports that an accident destroyed one of the pendulums used by G. B. Airy and WW in their Dolcoath experiments. Obtained some results and believes in the general soundness of the method employed.

Contributor:
John Herschel Project
From:
William Whewell
To:
Sir John Herschel
Date:
[13 October 1826]
Source of text:
RS:HS 18.168
Summary:

Tells JH that the Lucasian Professorship has become available. Believes most Cambridge people favor JH. Urges JH to write the electors, i.e., the heads of the Cambridge colleges.

Contributor:
John Herschel Project