Search: Herschel, John in addressee 
Herschel, John in correspondent 
1830-1839::1836::12::17 in date 
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From:
Thomas Maclear
To:
Sir John Herschel
Date:
[18 December 1836]
Source of text:
RS:HS 12.98
Summary:

Definition at the Observatory last night was abominable; therefore no comparisons can be made between the stations. Much obliged for the details of the actinometer. Will call on JH later.

Contributor:
John Herschel Project
From:
Sir Edward Ryan
To:
Sir John Herschel
Date:
[17 December 1836]
Source of text:
RS:HS 14.450
Summary:

Introduces [Charles?] Cameron. Received angry and excited letter from Charles Babbage. Discusses barometers. Heard Herschels may be travelling to Rio de Janeiro.

Contributor:
John Herschel Project