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Herschel, John in addressee 
John Herschel Project in contributor 
Airy, George Biddell in author 
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Showing 21–40 of 626 items

Herschel4656

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[24 January 1830]
Source of text:
RS:HS 1.40
Summary:

Giving observations on stars. Discussion of clock rates and sky sweeps.

Contributor:
John Herschel Project

Herschel4657

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[1 March 1830]
Source of text:
RS:HS 1.41
Summary:

Informing JH that he and GA have just been appointed to a committee to consider the extension of the Astronomical Society's catalogue. Observations on this catalogue.

Contributor:
John Herschel Project

Herschel4658

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[23 May 1830]
Source of text:
RS:HS 1.42
Summary:

Wants JH's views on a 20-foot reflector. Inviting him to Cambridge. With this letter he encloses Volume 2 of the Cambridge Observatory's Observations and Lectures in Optics.

Contributor:
John Herschel Project

Herschel4659

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[21 July 1830]
Source of text:
RS:HS 1.43
Summary:

Sends volume of observations. Remarks on A. J. Fresnel's experiments. Lists errors in JH's treatise on light. Requests information on circular double refraction.

Contributor:
John Herschel Project

Herschel4660

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[7 December 1830]
Source of text:
RS:HS 1.44
Summary:

Encloses paper 'Figure of the Earth.' Wants information on rays in quartz. Has tried A. J. Fresnel's experiments.

Contributor:
John Herschel Project

Herschel4661

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[5 January 1831]
Source of text:
RS:HS 1.46
Summary:

Opinion on M. C. T. Damoiseau's theory and tables; worth a medal.

Contributor:
John Herschel Project

Herschel4662

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[27 January 1831]
Source of text:
RS:HS 1.47
Summary:

Remarks on Greenwich observations.

Contributor:
John Herschel Project

Herschel4664

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[16 July 1831]
Source of text:
RS:HS 1.49
Summary:

Informs JH that he has published a new edition of his tracts (to turn Cambridge mathematics to physical applications). Wants his permission to use his theory on biaxial crystals. Remarks on David Brewster's theories and experiments.

Contributor:
John Herschel Project

Herschel4663

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[30 November 1831]
Source of text:
RS:HS 1.48
Summary:

Wants 100 of JH's star forms. Wants any information on a collection of observations of Venus.

Contributor:
John Herschel Project

Herschel4665

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[9 February 1832]
Source of text:
RS:HS 1.50
Summary:

Has been making optical experiments. Hopes to see JH in the Spring. Hopes JH will be able to observe Encke's comet this year.

Contributor:
John Herschel Project

Herschel4666

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[27 April 1832]
Source of text:
RS:HS 1.51
Summary:

Will he be visiting Cambridge this Spring?

Contributor:
John Herschel Project

Herschel4667

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[6 May 1832]
Source of text:
RS:HS 1.52
Summary:

Observations on the various ways of measuring angular positions (of double stars). Opinion on JH publishing his catalogue of nebulae. Remarks on the low standard of astronomical observations in England compared with the Continent.

Contributor:
John Herschel Project

Herschel4668

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[2 December 1832]
Source of text:
RS:HS 1.53
Summary:

Observations on the gravimeter.

Contributor:
John Herschel Project

Herschel4669

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[17 December 1832]
Source of text:
RS:HS 1.54
Summary:

Requests that the engravings for the catalogue of nebulae be speeded up. Further observations on the gravimeter. Observations on W. R. Hamilton's experiments on biaxial crystals using A. J. Fresnel's wave surface theory.

Contributor:
John Herschel Project

Herschel4670

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[30 December 1832]
Source of text:
RS:HS 1.55
Summary:

Requesting a copy of G. A. A. Plana and Francesco Carlini's 'Lunar Theory.' Further remarks on the practicability of the gravimeter.

Contributor:
John Herschel Project

Herschel4671

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[3 February 1833]
Source of text:
RS:HS 1.56
Summary:

Inviting JH to his house if he attends the meeting of the B.A.A.S. Proposes to visit JH in London.

Contributor:
John Herschel Project

Herschel4672

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[8 April 1833]
Source of text:
RS:HS 1.57
Summary:

Observations on the work of S. D. Poisson and P. G. le D. Pontecoulant. Is JH's 20-ft. telescope any use for measuring angles and distances? Discussion of solar spots.

Contributor:
John Herschel Project

Herschel4673

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[20 August 1833]
Source of text:
RS:HS 1.58
Summary:

Copy of letter to Hugh Percy (3rd Duke of Northumberland) stating that the Duke's offer of a refracting telescope of great power, to Cambridge Observatory would be a valuable gift. To JH: Remarks on gift of telescope, planet reduction money, and on his geological exploration of the Charnwood Forest.

Contributor:
John Herschel Project

Herschel4674

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[26 August 1833]
Source of text:
RS:HS 1.59
Summary:

Has visited Hugh Percy (3rd Duke of Northumberland) at Buxton, who suggests that JH approaches R. A. Cauchoix for the glass for the new telescope.

Contributor:
John Herschel Project

Herschel4675

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[1 October 1833]
Source of text:
RS:HS 1.60
Summary:

Further discussion of the telescope being donated by Hugh Percy (3rd Duke of Northumberland).

Contributor:
John Herschel Project
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