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Airy, George Biddell in addressee 
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Herschel279

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1 September 1842]
Source of text:
RGO 6.112.75 (ACCS: RS:HS 25.6.11)
Summary:

About eclipse observations of 1842, together with JH's speculations about the existence of an atmosphere around the sun. Enclosed is an eclipse drawing by Francis Baily.

Contributor:
John Herschel Project

Herschel467

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[20 September 1842]
Source of text:
RGO 6.427.69
Summary:

Needs some clarification of GA's letter [see GA's 1842-9-16] before JH is ready to reply about the calculating engine.

Contributor:
John Herschel Project

Herschel4720

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[21 September 1842]
Source of text:
RS:HS 1.110 & 22.135
Summary:

Reply to GA's letter on Charles Babbage's calculating machine.

Contributor:
John Herschel Project

Herschel537

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[23 September 1842]
Source of text:
RGO 6.340.343
Summary:

Gives GA some accounting of standard weights in Britain, and feels that it would be worth acquiring Robinson estate weight [see GA's 1842-9-22].

Contributor:
John Herschel Project
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