Search: Herschel, John in author 
1830-1839 in date 
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Herschel11584

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[22 October 1838]
Source of text:
RS:HS 21.263
Summary:

Is anxious to hear from HL about his ideas for a major expedition for magnetic observations being considered by the B.A.A.S.

Contributor:
John Herschel Project

Herschel11585

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[5 November 1838]
Source of text:
RS:HS 21.267
Summary:

Further comments in preparation for discussion of major expedition [see JH's 1838-10-22] with representatives of the government.

Contributor:
John Herschel Project

Herschel11586

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[21 April 1839]
Source of text:
RS:HS 22.10
Summary:

Responds positively to HL's 1839-4-17, and adds some additional comments.

Contributor:
John Herschel Project

Herschel11587

From:
Sir John Herschel
To:
John William Lubbock
Date:
[4 August 1839]
Source of text:
RS:HS 22.23
Summary:

Asks JL to take on the preparations for the magnetic observations, including the instructing of ships' personnel.

Contributor:
John Herschel Project

Herschel11588

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[7 August 1839]
Source of text:
RS:HS 22.25
Summary:

About times at which magnetic observations should be made at each observation station.

Contributor:
John Herschel Project

Herschel11589

From:
Sir John Herschel
To:
Karl Kreil
Date:
[11 December 1839]
Source of text:
RS:HS 22.31
Summary:

In response to KK's 1839-10-22, JH sends information on [A. F.] Osler's anemometer, and on magnetic measurements to be carried out.

Contributor:
John Herschel Project

Herschel1162

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
1839-3-[15 or earlie
Source of text:
RS:HS 25.14.20
Summary:

Passes on the suggestion, from G. B. Airy, of the use of copper rings for damping the movements of measuring instruments in measuring terrestrial magnetism.

Contributor:
John Herschel Project

Herschel1165

From:
Sir John Herschel
To:
John William Lubbock
Date:
30 April [1839]
Source of text:
RS:HS 25.14.21
Summary:

Has just done photographic experiments using bromine paper, and is very pleased with them. JH notes in a postscript that he had just received a letter from W. H. Fox Talbot stating that Fox Talbot had just discovered bromine paper as well.

Contributor:
John Herschel Project

Herschel11652

From:
Sir John Herschel
To:
Sir James McGrigor
Date:
[20 June 1836]
Source of text:
RS:HS 12.17 & 21.208
Summary:

Regarding the affair of Dr. Andrew Smith, who has done good work with an expedition. Thinks it desirable that Smith should be given leave of absence to return to England and write up the expedition.

Contributor:
John Herschel Project

Herschel1166

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1834 to 1835]
Source of text:
RS:HS 25.14.26
Summary:

Comparisons of the functioning of JH's barometer and that of TM.

Contributor:
John Herschel Project

Herschel11688

From:
Sir John Herschel
To:
Thomas Maclear
Date:
12] August [1834
Source of text:
RS:HS 21.166
Summary:

Discusses JH's recent observations of Gamma Virginis.

Contributor:
John Herschel Project

Herschel11698

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1835-3-8 or 9]
Source of text:
RS:HS 21.168
Summary:

Reports on location of a planetary nebula. Expresses thanks for book by [Robert] Woodhouse.

Contributor:
John Herschel Project

Herschel11706

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1835-7]
Source of text:
RS:HS 21.192
Summary:

Has interpolated the hourly tidal observations for Simon's Bay.

Contributor:
John Herschel Project

Herschel1171

From:
Sir John Herschel
To:
William Henry Smyth
Date:
[1833]
Source of text:
RS:HS 25.14.31
Summary:

Encourages WS to spend time observing nebulae and double stars, especially the latter, 'since [James] South has given up observing, and [W. R.] Dawes is in habitual ill health.'

Contributor:
John Herschel Project

Herschel11711

From:
Sir John Herschel
To:
Thomas Maclear
Date:
15] August [1835
Source of text:
RS:HS 21.167
Summary:

Reports having read the record JH sent of [tidal] observations and comments on it.

Contributor:
John Herschel Project

Herschel11733

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[13 October 1836]
Source of text:
RS:HS 12.95 (C: RS:HS 21.212)
Summary:

Reports on JH's actinometer observations. Explains why he subscribed to 'Col. [Harry] Smith's piece of plate.'

Contributor:
John Herschel Project

Herschel11747

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1837-6-23 or 24]
Source of text:
RS:HS 21.193
Summary:

Discusses various matters relating to telescopic and to tidal observations. Relays request from William Whewell that TM continue tidal observations.

Contributor:
John Herschel Project

Herschel11748

From:
Sir John Herschel
To:
Thomas Maclear
Date:
15] July [1837
Source of text:
RS:HS 21.194
Summary:

Comments on stellar observations made by TM and reports JH's observations on sunspots. Notes error in [J. E.] Bode's celestial map.

Contributor:
John Herschel Project

Herschel1175

From:
Sir John Herschel
To:
Robert Treat Paine
Date:
[26 August 1836]
Source of text:
RS:HS 25.15.3
Summary:

Mostly about periodic meteors [see RP's 1836-5-24], which JH observed in November 1835. JH offers some theoretical explanation for such a phenomenon.

Contributor:
John Herschel Project

Herschel1177

From:
Sir John Herschel
To:
J. H. Rutherford
Date:
[6 June 1837]
Source of text:
RS:HS 25.15.5
Summary:

Wants some rewording in the statement that is to go with the monetary support for John Fairbairn [see JR's 1837-6-6].

Contributor:
John Herschel Project
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