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Herschel11766

From:
Thomas Maclear
To:
Sir John Herschel
Date:
[25 March 1840]
Source of text:
RS:HS 12.126
Summary:

Acknowledges letter requesting land for the Magnetic Observatory. Has a portion of land available in the S.E. corner of the grounds, but it will be necessary to obtain the permission of Rear Admiral George Elliot.

Contributor:
John Herschel Project

Herschel11767

From:
Thomas Maclear
To:
Sir John Herschel
Date:
[29 March 1840]
Source of text:
RS:HS 12.127
Summary:

Erebus and Terror have arrived in Simon's Bay. Discussed Magnetic Observatory with J. C. Ross, Captain Croper, and F. E. Wilmot, and wrote government requesting funds. Obelisk has not yet reached the Cape. Small pox rages in Cape Town.

Contributor:
John Herschel Project

Herschel14106

From:
John Henry Lefroy
To:
Sir John Herschel
Date:
[27 March 1840]
Source of text:
TxU:H/M-0330; Reel 1087
Summary:

Progress in construction of observatory. Completion expected in May. Poor weather hampers actinometer observations.

Contributor:
John Herschel Project

Herschel2230

From:
T. S. Redman
To:
Sir John Herschel
Date:
[31 March 1840]
Source of text:
RS:HS 14.474
Summary:

Describes the process of preparing photogenic paper, taking drawings, and fixing them.

Contributor:
John Herschel Project

Herschel2443

From:
Edward Sabine
To:
Sir John Herschel
Date:
4 March [1840]
Source of text:
RS:HS 15.297
Summary:

Sends enclosure to JH. [Humphrey] Lloyd also has a copy and Lloyd will send comments directly to JH.

Contributor:
John Herschel Project

Herschel2470

From:
Edward Sabine
To:
Sir John Herschel
Date:
26 March [1840?]
Source of text:
RS:HS 15.324
Summary:

Reports on instruments being sent to Hamburg and to Egyptian observatories. Encloses portion of [K.] Kriel's letter to [A. T.] Kupffer. Reports on [Charles] Riddell's securing a site for a meteorological observatory.

Contributor:
John Herschel Project

Herschel3430

From:
Sir John Herschel
To:
John William Lubbock
Date:
[9 March 1840]
Source of text:
RS LUB.H.354 (C: RS:HS 22.43)
Summary:

Comments on several different reports; also on some experiments that lead JH to think much of the radiant energy of the Sun is absorbed in the atmosphere.

Contributor:
John Herschel Project

Herschel3431

From:
Sir John Herschel
To:
[John William Lubbock]
Date:
[15 March 1840]
Source of text:
RS LUB.H.355 (ACCS: RS:HS 25.6.3)
Summary:

JH has apparently insulted JL by crediting JL's colleagues but not JL with improvements in lunar and planetary theory. JH explains how this happened, that JH's good intentions went awry.

Contributor:
John Herschel Project

Herschel3521

From:
Sir John Herschel
To:
James David Forbes
Date:
[3 March 1840]
Source of text:
St. Andrews 12 (C: RS:HS 25.6.1 & TxU:H/L-0157; Reel 1054)
Summary:

Outlines theory behind and method for preparing thermographic paper, which allows observers to determine 'what share each ray of the spectrum bears in producing the observed total effects.'

Contributor:
John Herschel Project

Herschel3595

From:
Sir John Herschel
To:
James David Forbes
Date:
[13 March 1840]
Source of text:
St. Andrews 13 (C: RS:HS 22.44)
Summary:

On the preparation of paper to exhibit a thermal spectrum.

Contributor:
John Herschel Project

Herschel3614

From:
James David Forbes
To:
Sir John Herschel
Date:
[9 March 1840]
Source of text:
St. Andrews LB III 71, 72 (C: RS:HS 7.295)
Summary:

Would like to know the degree of sensibility to heat of JH's paper. The paper of W. H. F. Talbot is useless for his purpose as only violet heat affects it. Did JH use a flint glass prism for his spectrum experiments? Has he ever used photography to show the impression of polarization and diffraction?

Contributor:
John Herschel Project

Herschel3669

From:
Sir John Herschel
To:
Richard Sheepshanks
Date:
[2 March 1840]
Source of text:
RS:HS 16.12 (C: RS:HS 25.9.5)
Summary:

JH concerned not so much that a few copies of the print of JH's portrait may have been sold, but that the plate itself may have been stolen and sold. Seems relieved to know that the plate was left with the printer, not the engraver. Asks RS to make an inquiry with the printer.

Contributor:
John Herschel Project

Herschel3670

From:
Richard Sheepshanks
To:
Sir John Herschel
Date:
[2 March 1840]
Source of text:
RS:HS 16.13
Summary:

Needs the name of the print seller from whom JH's cousin bought the copy of the print of JH's portrait, so RS can learn how many copies are available. RS will then know whether to 'treat with [the printer] as an honest man or a rogue.'

Contributor:
John Herschel Project

Herschel4168

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[16 March 1840]
Source of text:
Cape Archives/Maclear Papers File 100
Summary:

Four appointed directors sent to Cape schools. Will leave Slough in two weeks for Collingwood. Laid William Herschel's telescope to rest at Slough.

Contributor:
John Herschel Project

Herschel4292

From:
Andries Stockenström
To:
Sir John Herschel
Date:
[13 March 1840]
Source of text:
RS:HS 17.23
Summary:

The Treasury awards AS a pension.

Contributor:
John Herschel Project

Herschel4402

From:
Henry Anthony Jeffreys
To:
Sir John Herschel
Date:
[1840 or later]-3-5
Source of text:
Harvard: Houghton AAH 67m-67 (63)
Summary:

Asks JH's opinion on a candidate for a committee position.

Contributor:
John Herschel Project

Herschel6052

From:
Francis Baily
To:
Sir John Herschel
Date:
[4 March 1840]
Source of text:
RS:HS 3.177
Summary:

Is the R.A.S. to send an address to the Queen? The diploma is ready for the King of Denmark.

Contributor:
John Herschel Project

Herschel6053

From:
Francis Baily
To:
Sir John Herschel
Date:
[6 March 1840]
Source of text:
RS:HS 3.178
Summary:

Regarding an address to the Queen. Hopes to see him on Thursday.

Contributor:
John Herschel Project

Herschel6054

From:
Francis Baily
To:
Sir John Herschel
Date:
[21 March 1840]
Source of text:
RS:HS 3.179
Summary:

Has sent the letter and diploma to the King of Denmark. Regarding the printing of Thomas Maclear's paper on N. L. Lacaille. H. C. Schumacher has seen a third comet.

Contributor:
John Herschel Project

Herschel8271

From:
Sir John Herschel
To:
Christian VIII
Date:
[13 March 1840]
Source of text:
RS:HS 19.77
Summary:

Announces King's enrollment as patron of R.A.S. Recalls Danish monarches who promoted astronomy. Praises Altona observatory and work of H. C. Schumacher.

Contributor:
John Herschel Project
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