Search: John Herschel Project in contributor 
1830-1839::1837 in date 
letter in document-type 
Maclear, Thomas in correspondent 
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Showing 61–69 of 69 items

Herschel4010

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

Wants to borrow TM's carpenter. Found a faint planetary nebula.

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

Herschel4030

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

Not surprised that the measuring rods broke; knew that they were top heavy. Discusses improvements. Very busy. A horse stepped on JH's foot, but no broken bones.

Contributor:
John Herschel Project

Herschel4032

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

Sending the spherometer. Discusses stars and nebulae observed near the South Pole.

Contributor:
John Herschel Project

Herschel4033

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1837-11-2 or 3]
Source of text:
unknown
Summary:

Reports that Dr. Andrew Smith received a grant of £1500 from the British government.

Contributor:
John Herschel Project

Herschel7408

From:
Thomas Maclear
To:
Sir John Herschel
Date:
24] August [1837
Source of text:
RAS:JH Archive 6/2.34; Reel 8
Summary:

Check proofs, including first announcement of JH's 'Planetary Nebulae.' Instrument inconsistencies produce immense labor for TM and C. P. Smyth. Tempted to omit one-third of readings. Praises Smyth; happy to be rid of William Meadows. Speculates on causes of TM's and JH's headaches. Will propose that Fearon Fallows's observations be published.

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

Herschel7420

From:
Thomas Maclear
To:
Sir John Herschel
Date:
[1838 or later]
Source of text:
RAS:JH Archive 7/3.15; Reel 8
Summary:

Gives latitude of 'this observatory' used in reduction of 'Comet stars.' Will accept systematic correction in all data to compensate for differences between TM's and Thomas Henderson's data. Instruments are erratic since telescope was moved. Using transit instrument only for sun, planets, and [reduction of Thomas] Brisbane's stars.

Contributor:
John Herschel Project
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