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From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[28 September 1870]
Source of text:
RS:HS 17.78
Summary:

Comments on JH's concerns about actinometric measurements [see JH's 1870-9-20]; recommends the study of periodicity of waves on Atlantic Coast.

Contributor:
John Herschel Project
From:
Sir William Huggins
To:
Sir John Herschel
Date:
[28 September 1870]
Source of text:
RS:HS 10.61
Summary:

Has had a letter from Cleveland Abbe inquiring when JH's Catalogue of Double Stars can be expected. Howard and Thomas Grubb have just erected his telescope but the eye end is not finished. Instrument will be very 'handy.'

Contributor:
John Herschel Project