Search: Herschel, John in correspondent 
Sabine, Edward in correspondent 
1850-1859::1857::04 in date 
Sorted by:

Showing 1–4 of 4 items

Herschel2372

From:
Sir John Herschel
To:
Edward Sabine
Date:
[3 April 1857]
Source of text:
RS:HS 15.241 (C: RS:HS 23.193)
Summary:

Thanks ES for his paper. Sun spot activity should increase in 1857. Discusses his own earlier ideas concerning relationship between sun spots and Aurora Borealis.

Contributor:
John Herschel Project

Herschel2373

From:
Edward Sabine
To:
Sir John Herschel
Date:
[6 April 1857]
Source of text:
RS:HS 15.242
Summary:

Glad to know which of ES's papers JH has. Sends another along with maps from [Keith] Johnson's Physical Atlas. Discusses JH's ideas regarding relationship between solar spots and magnetic disturbances.

Contributor:
John Herschel Project

Herschel2374

From:
Edward Sabine
To:
Sir John Herschel
Date:
[6 April 1857]
Source of text:
RS:HS 15.243
Summary:

Mentions [P.] Plantamour's memoir on barometer and a criticism by Mr. Dilams[?]. Comprehending why variations of magnetic disturbances correspond in period with terrestrial year is difficult.

Contributor:
John Herschel Project

Herschel2375

From:
Sir John Herschel
To:
Edward Sabine
Date:
[8 April 1857]
Source of text:
RS:HS 23.195
Summary:

Discusses advantages of different magnetic charts. Grateful for [P.] Plantamour's observations. Satisfied with [J. R.] Wolf's period of 11.11 years for solar spots.

Contributor:
John Herschel Project
Author
Addressee
Correspondent
Date
Document type
Contributor
Transcription available