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Herschel8061

From:
Thomas Young
To:
Sir John Herschel
Date:
[1824-11-21 to 1825]
Source of text:
RS:HS 18.328
Summary:

As R.S.L. vice president, JH should reconsider his report favoring Eilhard Mitscherlich over W. H. Wollaston. This may be last opportunity to pay Wollaston a 'just compliment.' Agrees with JH that much in R.S.L. 'nicknamed science [is] sleight of hand,' and that 'great injustice is done to men of science.' But TY expects a short life and tries not to be concerned about approval of others.

Contributor:
John Herschel Project

Herschel8062

From:
Thomas Young
To:
Sir John Herschel
Date:
[1824-11-21 to 1825]
Source of text:
RS:HS 18.329
Summary:

TY would rather have JH's labor made useful another year. W. H. Wollaston does not want [Royal] medal, but medal wants Wollaston. One council member felt that TY's remarks offended JH. Assures JH it was not intended.

Contributor:
John Herschel Project

Herschel8064

From:
Thomas Young
To:
Sir John Herschel
Date:
[1824-11-21 to 1825]
Source of text:
RS:HS 18.331
Summary:

Math is flimsy in John Dalton's theory of vapor dispersion, but physical grounds are firm. Sends copy of TY's volume on sound. Modules of elasticity and tension are analogies to explain TY's doctrine. Presently studying modules of elasticity that do not apply to chimney pipes investigated by Daniel Bernoulli and J. H. Lambert.

Contributor:
John Herschel Project

Herschel14627

From:
Thomas Young
To:
Sir John Herschel
Date:
[19 May 1825]
Source of text:
TxU:H/M-0612; Reel 1086
Summary:

Announces 2 June meeting of 'Commissioners for more effectually discovering the Longitude at Sea.' Inquired about 'excise,' but sees no reason to wait for Navy Board to act.

Contributor:
John Herschel Project

Herschel8065

From:
Sir John Herschel
To:
Thomas Young
Date:
[19 June 1825]
Source of text:
RS:HS 18.332 (C: 20.214)
Summary:

Edward Sabine declares that R.S.L. is hostile to ES's interests. If ES makes future claim for compensation, JH wants TY's opinion in writing. Need to order four night glasses for Fairlight Station. Encloses letter from [Richard] Copeland.

Contributor:
John Herschel Project

Herschel8066

From:
Thomas Young
To:
Sir John Herschel
Date:
[5 November 1825]
Source of text:
RS:HS 18.333
Summary:

Ask Charles Babbage to send tables of logarithms to TY, who will compare them to [Brook] Taylor's. Bets that five errors will be found. Did JH order mountain barometer from [J. F.] Newman? Will inquire about [W. E.] Parry's instruments. Admiralty, not us, should order sextants.

Contributor:
John Herschel Project

Herschel8067

From:
Thomas Young
To:
Sir John Herschel
Date:
[7 November 1825]
Source of text:
RS:HS 18.334
Summary:

Questions JH's conclusion that Board of Longitude has power to interfere in Admiralty operations. Disagrees that Nautical Almanac errors are serious. Compares them to tables of Charles Hutton, F. X. von Zach, and H. C. Schumacher. When will TY receive Charles Babbage's table?

Contributor:
John Herschel Project

Herschel8069

From:
Sir John Herschel
To:
Thomas Young
Date:
[8 November 1825]
Source of text:
RS:HS 18.335b (C, encl 1p: 20.223)
Summary:

Encloses note from Sir John Barrow refusing scientific instruments and objecting to using barometers. Supplying cameras and sextants to Admiralty's marine survey is not interference by Board of Longitude. Sent JH's expenses to Edward Sabine; has no further word on subject. Encloses Mr. Stewart's note about damages at Wrotham.

Contributor:
John Herschel Project

Herschel8070

From:
Thomas Young
To:
Sir John Herschel
Date:
[15] November 1825
Source of text:
RS:HS 18.336
Summary:

[Board of Longitude] must answer to Parliament, not to public opinion. Do not contest the system. Order pocket sextants; they and barometer will be sent to Captain [Richard] Copeland. Knows how JH feels about expenses sent to Edward Sabine, but please write receipt and send it to TY within week. Will write directly to Charles Babbage for tables.

Contributor:
John Herschel Project

Herschel8071

From:
Thomas Young
To:
Sir John Herschel
Date:
[11 December 1825]
Source of text:
RS:HS 18.337
Summary:

Suggests change in JH's table of refractions. Possible error in John Pond's reductions [illustration].

Contributor:
John Herschel Project

Herschel8088

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

Herschel8090

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

Herschel8092

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

Herschel8093

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
Text Online

L1140

From:
Thomas Young
To:
André-Marie Ampère
Date:
3 mai 1827
Source of text:
Fonds André-Marie Ampère chemise 302 bis, Archives de l'Académie des sciences, Paris
Summary:

No summary available.

Contributor:
La Correspondance d’André-Marie Ampère
Text Online

Faraday0341

From:
Thomas Young
To:
Michael Faraday
Date:
20 December 1827
Source of text:
RI MS F3 B403
Summary:

No summary available.

Contributor:
Faraday Project

Herschel8072

From:
Thomas Young
To:
Sir John Herschel
Date:
27 December [1827]
Source of text:
RS:HS 18.338
Summary:

'Our volume is nearly ready.' Problem dating vernal equinoxes before Christ's birth.

Contributor:
John Herschel Project
Text Online

L1139

From:
Thomas Young
To:
André-Marie Ampère
Date:
27 mars 1828
Source of text:
Fonds André-Marie Ampère chemise 302 bis, Archives de l'Académie des sciences, Paris
Summary:

No summary available.

Contributor:
La Correspondance d’André-Marie Ampère

Herschel8074

From:
Thomas Young
To:
Sir John Herschel
Date:
[28 March 1828]
Source of text:
RS:HS 18.340
Summary:

Board of Longitude will accomplish nothing by meeting before T. M. Brisbane comes to town, but TY suggests informal discussion, either at TY's or Henry Kater's.

Contributor:
John Herschel Project

Herschel8075

From:
Thomas Young
To:
Sir John Herschel
Date:
[30 March 1828]
Source of text:
RS:HS 18.341
Summary:

Henry Kater not well [enough to travel] and requests committee meet at Kater's house. TY urges JH to verify W. H. Wollaston's measurement of refraction before republishing JH's essay. Diagrams Christiaan Huygens's principle of refraction. TY is making forms of aplanatic lenses.

Contributor:
John Herschel Project
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