Search: Maclear, Thomas in author 
1830-1839::1837::10 in date 
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Herschel11838

From:
Thomas Maclear
To:
Sir John Herschel
Date:
10] October [1837
Source of text:
RS:HS 12.197
Summary:

If the weather clears up would like to compare his observations of the eclipse with those of JH. Thinks of riding over on Sunday so that JH can question him on Klypfonteyn and N. L. Lacaille's station.

Contributor:
John Herschel Project

Herschel7409

From:
Thomas Maclear
To:
Sir John Herschel
Date:
13] October [1837
Source of text:
RAS:JH Archive 6/2.38; Reel 8
Summary:

Problems determining exact times of lunar eclipses. Cites B.A.A.S.Rep. article by T. R. Robinson on change of color. Base line covered by water after recent storm.

Contributor:
John Herschel Project

Herschel7410

From:
Thomas Maclear
To:
Sir John Herschel
Date:
14] October [1837
Source of text:
RAS:JH Archive 6/2.39; Reel 8
Summary:

Compares TM's observations of 'spots' and colors [on lunar surface] to observations by others. At next eclipse, TM will use drawing of moon's face with spots labeled on it. Did JH note occultation? Chronometer is slow.

Contributor:
John Herschel Project
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