Search: Herschel, John in correspondent 
Sykes, William Henry in correspondent 
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Showing 21–31 of 31 items

Herschel3460

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[20 July? 1852]
Source of text:
RS MM.16.166
Summary:

Encloses newly-discovered proof that John Forbes Watson's wet bulb depression was not a clerical error.

Contributor:
John Herschel Project

Herschel3135

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[12 August 1852]
Source of text:
RS:HS 17.150
Summary:

Plans date and time for first ascent of balloon experiment. WS's daughter has fallen in love with JH's son William.

Contributor:
John Herschel Project

Herschel3122

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[26 October 1853]
Source of text:
RS:HS 17.151
Summary:

Describes travels abroad and their educational value, news on balloon ascents, barometer corrections, Henri Regnault's hygrometer, invention of electric weaver and other new applications of electricity throughout Europe.

Contributor:
John Herschel Project

Herschel3415

From:
Sir John Herschel
To:
William Henry Sykes
Date:
[16 January 1857]
Source of text:
RS:HS 17.152 (C: RS:HS 23.188)
Summary:

Interprets [John] Dalton's theory of the nonelasticity of gas particles, expressing its limitations, particularly in regard to a Mr. Paton's paper.

Contributor:
John Herschel Project

Herschel3357

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[20 November 1858]
Source of text:
RS:HS 17.153
Summary:

Before meeting of Balloon Committee, requests JH's opinion on value of renewing balloon ascents.

Contributor:
John Herschel Project

Herschel3169

From:
Sir John Herschel
To:
William Henry Sykes
Date:
[23 November 1858]
Source of text:
RS:HS 17.154 (C: RS:HS 23.246)
Summary:

Urges renewal of high balloon ascents with periodic observations both to further knowledge of law of decrement of temperature and pressure and for 'ulterior investigations.'

Contributor:
John Herschel Project

Herschel3385

From:
Sir John Herschel
To:
William Henry Sykes
Date:
[24 October 1861]
Source of text:
RS:HS 17.155 (C: RS:HS 23.343)
Summary:

Stresses importance for Balloon Committee of obtaining corresponding temperatures and pressures; describes two highly sensitive thermometers that might be built for this purpose.

Contributor:
John Herschel Project

Herschel3495

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[28 October 1861]
Source of text:
RS:HS 17.156
Summary:

Updates JH on activities of Balloon Committee, and thanks him for suggestion regarding temperature measurement. Mentions improving health of Mrs. Sykes.

Contributor:
John Herschel Project

Herschel3267

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[9 January 1862]
Source of text:
RS:HS 17.157
Summary:

Invites JH to meeting of Balloon Committee and updates everything in previous letter.

Contributor:
John Herschel Project

Herschel3511

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[18 January 1862]
Source of text:
RS:HS 17.158
Summary:

Asks for JH's opinion on balloon ascents, to be presented at next Balloon Committee meeting. Explains enclosed letters and diagrams regarding ascents; mentions that new thermometer suggested by JH is under construction.

Contributor:
John Herschel Project

Herschel3577

From:
William Henry Sykes
To:
Sir John Herschel
Date:
[7 October 1862]
Source of text:
RS:HS 17.159
Summary:

Communicates Balloon Committee's feeling that balloon should not go as high as JH suggested, despite Henry Coxwell's having safely ascended higher. Reports successful presentation of previous results, hoping that Committee will find sufficient funding to continue.

Contributor:
John Herschel Project
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