Search: 1860-1869::1863::02 in date 
Herschel, John in author 
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Herschel2417

From:
Sir John Herschel
To:
Edward Sabine
Date:
[5 February 1863]
Source of text:
RS:HS 24.8
Summary:

Agrees that the pendulum should be observed at major Indian stations because Russians did not avail themselves of offered vacuum apparatus and pendulums.

Contributor:
John Herschel Project

Herschel451

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[6 February 1863]
Source of text:
RGO 6.200.71 (C: TxU:H/L-0022)
Summary:

Once again anxious about completion of nebula catalogue, and about cost over run [see Edward Stone's 1863-1-14].

Contributor:
John Herschel Project

Herschel453

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[7 February 1863]
Source of text:
RGO 6.200.74
Summary:

Acknowledges receipt of nebula catalogue sheets from GA [see GA's 1863-2-6]; apologizes for JH's anxious letter [see JH's 1863-2-6].

Contributor:
John Herschel Project

Herschel5654

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[10 February 1863]
Source of text:
RS:HS 24.9
Summary:

Is satisfied with WB's work on meteorology. Comments on WB's intention to diagram the moon.

Contributor:
John Herschel Project

Herschel363

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[13 February 1863]
Source of text:
RGO 6.476.126
Summary:

Offers a few ideas to GA [see GA's 1863-2-9], but does not have a coherent explanation.

Contributor:
John Herschel Project

Herschel454

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[13 February 1863]
Source of text:
RGO 6.200.79
Summary:

Has found a few minor errors in the calculations checked so far [see GA's 1863-2-6]; comments on magnetic tracings JH received from GA.

Contributor:
John Herschel Project

Herschel8349

From:
Sir John Herschel
To:
Jacques Babinet
Date:
[19 February 1863]
Source of text:
RS:HS 19.151 (C: RS:HS 24.10)
Summary:

Suggestions on improving JB's gravimetric balance, constructed on principle of 'Bifilar suspension.' Refers to 1861 report of similar invention by J. A. Brown and another article on this topic.

Contributor:
John Herschel Project

Herschel2419

From:
Sir John Herschel
To:
Edward Sabine
Date:
[22 February 1863]
Source of text:
RS:HS 15.269 (C: RS:HS 24.11)
Summary:

Returns [Warren] de La Rue's letter and discusses its contents, especially the making, mounting, and mirror for de La Rue's reflecting telescope.

Contributor:
John Herschel Project

Herschel2420

From:
Sir John Herschel
To:
Edward Sabine
Date:
[22 February 1863]
Source of text:
RS:HS 15.270 (C: RS:HS 24.12)
Summary:

Expresses interest in Swedish plan to survey Spitzbergen and to measure meridian of arc. Discusses gravitometer being developed by [Jacques] Babinet.

Contributor:
John Herschel Project

Herschel456

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[22 February 1863]
Source of text:
RGO 6.200.82
Summary:

Might have saved JH some work if he had known what G. F. J. A. Auwers was doing [see GA's 1863-2-20]; has found some more errors in nebula calculations.

Contributor:
John Herschel Project

Herschel7138

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[26 February 1863]
Source of text:
RS:HS 23.363
Summary:

Comments on family health; asks AD if he has read James Challis on the topics of the ether and of zodiacal light.

Contributor:
John Herschel Project
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