Search: Herschel, John in author 
Selwyn, William in addressee 
1870-1879::1870::05 in date 
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Herschel2622

From:
Sir John Herschel
To:
William Selwyn
Date:
[2 May 1870]
Source of text:
RS:HS 24.310
Summary:

Wants to compare Mr. Titterton's photographs of the spot groups to [Warren] de La Rue's. Has tried to determine if some localities regularly have spots.

Contributor:
John Herschel Project

Herschel2624

From:
Sir John Herschel
To:
William Selwyn
Date:
[12 May 1870]
Source of text:
RS:HS 24.313
Summary:

The research shows no particularly 'maculiferous' area on the sun, but WS may, as WS requested, present 'data' to the R.A.S. Has noticed two new spots on helioautographs on 20 and 27 April.

Contributor:
John Herschel Project
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