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From:
Sir John Herschel
To:
John Dalton
Date:
[20 May 1833]
Source of text:
RS:HS 25.3.15
Summary:

Having been provided with answers by JD to some questions by JH about color-blindness, JH now comments on them and offers some theoretical considerations.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Margaret Brodie Herschel
Date:
[20 May 1833]
Source of text:
JHS.HCEJ.523
Summary:

It appears that Peter Stewart, MH's brother, is fighting some kind of battle, the outcome of which will affect the whole family. JH wants to help and offers £5000 through MH to Peter. JH has just completed writing his Treatise Astr.

Contributor:
John Herschel Project