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From:
Sir John Herschel
To:
John William Lubbock
Date:
[14 September 1861]
Source of text:
RS:HS 11.400 (C: RS:HS 23.339)
Summary:

About the barometric formula for the measurement of heights.

Contributor:
John Herschel Project
From:
John William Lubbock
To:
Sir John Herschel
Date:
[18 September 1861]
Source of text:
RS:HS 11.401
Summary:

Of course JH is right; regrets he gave him so much trouble. Hopes his own construction of P. S. Laplace's atmosphere is correct. Hopes JH's daughter had a prosperous journey.

Contributor:
John Herschel Project
From:
John William Lubbock
To:
Sir John Herschel
Date:
[12 July 1862]
Source of text:
RS:HS 11.402
Summary:

JH's conjectures are natural but Augustus De Morgan had nothing to do with JL's Treatise on Probability. JL wrote it in conjunction with J. E. Drinkwater Bethune, although the title page does not show the names of the authors. Understands what JH means about the moon but cannot see what will be gained. Sorry to hear of JH's mishap.

Contributor:
John Herschel Project
From:
John William Lubbock
To:
Sir John Herschel
Date:
[?]-12-23
Source of text:
RS:HS 11.403
Summary:

Can he recollect the origin of Table V in the Report of the Committee on Meteorology showing the elastic force of aqueous vapor? James Apjohn says JL calculated it but JL has no recollection. JL's mother is in a hopeless state.

Contributor:
John Herschel Project
From:
John William Lubbock
To:
Sir John Herschel
Date:
[?]-12-3
Source of text:
RS:HS 11.404
Summary:

Many years ago JH questioned him about the calculation of the perturbations in an inclined orbit, the satellites of Herschel [Uranus] for example. Has only recently seen the light. Is now confident that he can calculate the perturbations of any planet in any orbit. Gives details and would be glad of JH's comments.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[1845-3]
Source of text:
RS:HS 11.405 (C: RS:HS 25.13.11)
Summary:

Has received the books. Began with Karl Holtzmann's and finds the reasoning at fault. Comments on this. [Marked 'not sent.']

Contributor:
John Herschel Project
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
From:
Sir John Herschel
To:
John William Lubbock
Date:
[31 May 1840]
Source of text:
RS:HS 22.53
Summary:

R.S.L. business about an observatory at the North Cape in Sweden.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[22 June 1841]
Source of text:
RS:HS 22.89
Summary:

Comments on a paper on the calotype by W. H. F. Talbot, adding some experiences of his own on the subject.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[20 July 1841]
Source of text:
RS:HS 22.93
Summary:

Comments on Louis Daguerre's work, and on the question of a North Cape observatory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
1841-12
Source of text:
RS:HS 22.106
Summary:

Comments on balloon ascent report, photographic paper made with vegetable colors, and the need to provide a polarizing crystal to J. B. Biot.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[1 June 1847]
Source of text:
RS:HS 22.317
Summary:

Comments on JL's improvements to planetary theory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[16 December 1847]
Source of text:
RS:HS 22.338
Summary:

Arrangements for JL's presentation to be made to the R.A.S.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[19 March 1856]
Source of text:
RS:HS 23.167
Summary:

Is sending a letter of support for a neighbor for the position of commander of constabulary about to be established in Kent.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[29 January 1840]
Source of text:
RS:HS 25.14.22
Summary:

Has received JL's memoir on the tides. JH would like to amalgamate certain portions with a memoir from William Whewell. JH adds some comments on photographic experiments he has made.

Contributor:
John Herschel Project
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
From:
Sir John Herschel
To:
John William Lubbock
Date:
26 June [1840?]
Source of text:
TxU:H/L-0233; Reel 1054
Summary:

Believes that R.S.L.'s request for £3000 grant to establish permanent magnetic and meteorological observatory is too hasty. Urges caution. Points out potential problems.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John William Lubbock
Date:
[14 August 1861]
Source of text:
TxU:H/L-0234; Reel 1054
Summary:

Explains JH's objections to JL's shadow-extinction hypothesis of meteors. Believes that several sorts of meteors—magnetoelectric, stony, vaporous, etc.—exist.

Contributor:
John Herschel Project
From:
John William Lubbock
To:
Sir John Herschel
Date:
[9 August 1839]
Source of text:
TxU:H/M-0340; Reel 1087
Summary:

J. T. Boileau and L. E. O. Ludlow were appointed by H.E.I.C. to direct Indian observatories. R.S.L. is concerned that it has no choice in selecting directors. Instruments for H.E.I.C. observatories. Should JL request additional staff for all 16 observatories, or only for nine permanent ones?

Contributor:
John Herschel Project
From:
John William Lubbock
To:
Sir John Herschel
Date:
[5 December 1832]
Source of text:
DMC L.928A.2
Summary:

A circular letter to the electors of the University of Cambridge, asking for their support in the upcoming poll for representative to Parliament [see JH's 1832-11-30].

Contributor:
John Herschel Project