Search: John Herschel Project in contributor 
Herschel, John in correspondent 
1840-1849::1840::04 in date 
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From:
Marshall Hall
To:
Sir John Herschel
Date:
[3 April 1840]
Source of text:
RS:HS 9.204
Summary:

Was not certain how to reply to his last obliging letter. Has resolved to write to Professor [J. P.?] Müller. Thought it right to inform JH of his plans.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[15 April 1840]
Source of text:
RS:HS 10.83
Summary:

Would like JH's account of his own method of fixing a photograph as noted in his memoir. Singular phenomenon of the Daguerreotype. Hopes to produce a photographic paper to equal the silver plate before the month has expired. Will let him know when his process is complete.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[19 April 1840]
Source of text:
RS:HS 22.49
Summary:

Exchanging further information on several aspects of the photographic process [see RH's 1840-4-15].

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[23 April 1840]
Source of text:
RS:HS 10.84
Summary:

Is grateful for the handsome manner in which JH has acknowledged RH's work. Would be willing to prepare a memoir for the R.S.L. Does Louis Daguerre's patent affect RH's manufacture of photographic papers? Has not studied the bromnets so far, but has studied the effects of bromine on plates. Comments on his results.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Francis Baily
Date:
[1840-4]
Source of text:
RS:HS 25.8.65
Summary:

Indicates travel plans, including a visit to FB, with a side trip for business to Slough. JH comments on some astronomical observations he has received.

Contributor:
John Herschel Project
From:
George Thomas Napier
To:
Sir John Herschel
Date:
[10 April 1840]
Source of text:
RS:HS 13.68
Summary:

Apologizes for his long silence. Outlines recent events at the Cape concerning Andries Stockenström, who has been replaced by J. Hare, and Major C. C. Michell, who has resigned. J. R. Innes has been all over the Colony and will shortly be coming to England. F. M. Eardley-Wilmot has dined with the Napiers.

Contributor:
John Herschel Project
From:
Henry Piddington
To:
Sir John Herschel
Date:
[15 April 1840]
Source of text:
RS:HS 13.401
Summary:

Sends JH a pamphlet about meteorological observations in India.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[30 April 1840]
Source of text:
RS:HS 17.301
Summary:

Waxes lyrical about nature, and comments on a new 'positive' paper JH has sent. Refers to JH's move to Hawkhurst.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Unidentified
Date:
[1840- 4 or earlier]
Source of text:
TxU:H/L-0758; Reel 1089
Summary:

JH is preparing to leave residence at Slough, and all notes on William Herschel's life are packed away. Refers [?] to published biographies, but adds some corrections to those.

Contributor:
John Herschel Project
From:
Joseph Lovering
To:
Sir John Herschel
Date:
[26 April 1840]
Source of text:
TxU:H/M-0339; Reel 1087
Summary:

Asks JH's advice in establishing new astronomical, meteorological, and magnetic observatory at Harvard University. Describes instruments already owned and those ordered from Europe.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[1840]-4-25 or later
Source of text:
RS:HS 15.331
Summary:

Hopes [Humphrey] Lloyd will reconsider V.F. Magnetometer based on JH's remarks. Discusses Canadian observatories. States who will perform U. S. magnetic survey. Discusses micrometer use.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[10 April 1840]
Source of text:
RS:HS 15.84
Summary:

Discusses Charles Riddell's desire to serve at a North American observatory and the expenses involved.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[17 April 1840]
Source of text:
RS:HS 15.85
Summary:

Suggests a book of expenses be kept at the R.S.L.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[22 April 1840]
Source of text:
RS:HS 15.86
Summary:

Discusses plans for a U.S. magnetic observatory and of [Karl] Kreil's paper about predicting earthquakes. Discusses the affairs of other observatories.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
24 April [1840]
Source of text:
RS:HS 15.87
Summary:

Has received materials from [A. D.] Bache indicating that the U.S. government has proposed to establish 5 magnetic observatories.

Contributor:
John Herschel Project
From:
Edward Sabine
To:
Sir John Herschel
Date:
[30 April 1840]
Source of text:
RS:HS 15.88
Summary:

Writes of a magnetic survey of a portion of India and the inaccuracy of the equipment used in magnetic observations at sea.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[1840]-4?
Source of text:
RS LUB.H.356b (C: RS:HS 22.46)
Summary:

Thanks for 'small, but intense' volume sent.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Richard Sheepshanks
Date:
1840-4
Source of text:
RS:HS 16.14 (C: RS:HS 25.9.6)
Summary:

Thanks RS for all the trouble he took with the problem of his portrait. Is anxious to see the specimens of the engraved nebulae of which RS spoke, but confesses little hope in photographic 'reverses' of pencil drawings. Has installed his family at Collingwood.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[7?] April 1840
Source of text:
TxU:H/L-0585.3; Reel 1058
Summary:

Packing up the 7-ft. and 10-ft. reflecting telescopes for their trip to Collingwood in Hawkhurst in Kent, JH's new home.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
5] April [1840
Source of text:
George Eastman House, 2.17
Summary:

Hopes that his paper does not anticipate any of RH's work; will share with the R.S.L. any of RH's results. Laments that he is unable to fix the spectral colors on photographic paper. Asks if RH has studied the bromines.

Contributor:
John Herschel Project