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Lloyd, Humphrey in correspondent 
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From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
n.d.
Source of text:
RS:HS 11.290
Summary:

Pointing out one aspect of JH's report with which he does not agree, viz., the advantage of very small magnets in observations.

Contributor:
John Herschel Project
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[9 June 1838]
Source of text:
RS:HS 11.263
Summary:

Would have liked to have welcomed JH on his return from the Cape, but academic duties prevented it. Royal Irish Academy progresses under W. R. Hamilton's presidency. His late father established a magnetic observatory at Dublin and HL is in charge.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[11 June 1838]
Source of text:
RS:HS 21.248
Summary:

Some personal and some general astronomical news.

Contributor:
John Herschel Project
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[4 August 1838]
Source of text:
RS:HS 11.264
Summary:

Rejoices that JH is in favor of a South Polar expedition. Three years since a memorandum was presented to the government and thinks the B.A.A.S. should now present a further memo. Hopes JH will give it his support.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[6 August 1838]
Source of text:
RS:HS 21.256
Summary:

JH reiterates his support of a South Polar expedition.

Contributor:
John Herschel Project
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
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[25 October 1838]
Source of text:
RS:HS 11.265
Summary:

Agrees on the general plan for the expedition with the views of Edward Sabine. Gives some of his own comments for magnetic observations.

Contributor:
John Herschel Project
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
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[13 November 1838]
Source of text:
RS:HS 11.266
Summary:

Has been considering with Edward Sabine that morning the requirements for the fixed observatories. Gives lists and also estimate of finances required for a three-year period.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[16 November 1838]
Source of text:
RS:HS 11.267 & 21.270
Summary:

Would like a statement from Edward Sabine and HL outlining the probable expense and materials required for the proposed expedition so that he can hand it to the government at the interview. Has written to G. B. Airy, who is not in favor of the proposed expedition, so will write again. Thinks it necessary for men of science to agree before presenting petitions to the government.

Contributor:
John Herschel Project
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[17 November 1838]
Source of text:
RS:HS 11.268
Summary:

Illness forces him to make a quick return home. Agrees with JH that scientific men should act unanimously when approaching government. Thinks the R.S.L. should go along with the B.A.A.S. as well. Hoped to consult G. B. Airy. Will see Edward Sabine to draw up the memorial.

Contributor:
John Herschel Project
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
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[16 March 1839]
Source of text:
RS:HS 11.269
Summary:

Was pleased to hear of the success of JH's exertions. Comments on the instruments required. Thanks for his communication on the copper ring; will try it with the bifilar. W. H. F. Talbot talks of applying the photographic method to meteorological and magnetical instruments. Encloses a paper.

Contributor:
John Herschel Project
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[17 April 1839]
Source of text:
RS:HS 11.270
Summary:

Has ordered the instruments for the Van Diemen's Land observatory. Is uncertain regarding the third magnetometer; T. C. Robinson's has not yet been tested. Will order a dip circle from Paris.

Contributor:
John Herschel Project
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
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[3 August 1839]
Source of text:
RS:HS 11.271
Summary:

Has just had a letter from C. F. Gauss regarding the hours for observations; comments on this.

Contributor:
John Herschel Project
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
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[11 August 1839]
Source of text:
RS:HS 11.272
Summary:

Finds that he misunderstood Edward Sabine's statement and may have misled JH. Comments on the observations desired from the Antarctic Expedition.

Contributor:
John Herschel Project
From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[7 January 1840]
Source of text:
RS:HS 11.273
Summary:

Has not heard of any results of JH's letter to D. F. J. Arago, but Georges Aimé has been appointed to direct an observatory in Algiers. Great interest at the Institute when JH's letter was read. Glad he did not waste a second letter to the Times.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
1840-6-[25 or earlie
Source of text:
RS:HS 25.14.19
Summary:

Sends to HL a sheet of curves laid down by [Charles] Riddell, comparing Brussels declination observations with those made in Toronto. JH frequently refers to HL's work on the subject of terrestrial magnetism.

Contributor:
John Herschel Project