Search: Herschel, John in correspondent 
Maclear, Thomas in correspondent 
1830-1839::1837::10 in date 
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Herschel3800

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[14 October 1837]
Source of text:
unknown
Summary:

Sending the chronometer.

Contributor:
John Herschel Project

Herschel4011

From:
Sir John Herschel
To:
Thomas Maclear
Date:
9] October [1837
Source of text:
unknown
Summary:

Agrees with George Airy that Mercury should be studied more closely. Discusses TM's researches of N. L. Lacaille's Northern Extremity.

Contributor:
John Herschel Project

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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