Search: Herschel, John in correspondent 
Howlett, Frederick in correspondent 
1870-1879::1870 in date 
Sorted by:

Showing 1–5 of 5 items

Herschel10648

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[24 April 1870]
Source of text:
RS:HS 24.306
Summary:

Writes to compare notes on sunspot observations.

Contributor:
John Herschel Project

Herschel10649

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[28 April 1870]
Source of text:
RS:HS 10.23
Summary:

Has no idea whether the sunspots appeared suddenly or gradually. The Kew people may be able to help in this matter. Comments on some more sunspots.

Contributor:
John Herschel Project

Herschel10650

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[25 August 1870]
Source of text:
RS:HS 10.24
Summary:

Intends bringing the subject of sunspots before the B.A.A.S. next September and would therefore like JH's views on whether in his opinion these spots are mechanical or magnetic. Also any other comments would be welcome.

Contributor:
John Herschel Project

Herschel8528

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[29 August 1870]
Source of text:
Adler Ms. 13 (C: RS:HS 24.328)
Summary:

Comments on remarkable solar activity. JH admits he has no theory to explain sunspots.

Contributor:
John Herschel Project

Herschel10651

From:
Frederick Howlett
To:
Sir John Herschel
Date:
[7 September 1870]
Source of text:
RS:HS 10.25
Summary:

Is grateful for JH's note. Agrees with him about the mystery of the sunspots. Is awaiting some heliographs from Ely. Is inquiring from Kew as to any recent magnetic disturbances that may coincide with the appearance of the sunspots. Is grateful for Alexander Hershel's information.

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