Search: Maclear, Thomas in addressee 
Herschel, John in author 
John Herschel in collection 
1830-1839::1835 in date 
letter in document-type 
Sorted by:
Modify Search

Showing 1–20 of 38 items

Herschel11698

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1835-3-8 or 9]
Source of text:
RS:HS 21.168
Summary:

Reports on location of a planetary nebula. Expresses thanks for book by [Robert] Woodhouse.

Contributor:
John Herschel Project

Herschel11706

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1835-7]
Source of text:
RS:HS 21.192
Summary:

Has interpolated the hourly tidal observations for Simon's Bay.

Contributor:
John Herschel Project

Herschel11711

From:
Sir John Herschel
To:
Thomas Maclear
Date:
15] August [1835
Source of text:
RS:HS 21.167
Summary:

Reports having read the record JH sent of [tidal] observations and comments on it.

Contributor:
John Herschel Project

Herschel11820

From:
Sir John Herschel
To:
Thomas Maclear
Date:
5] February [1835
Source of text:
RS:HS 12.179 (C: RS:HS 21.170)
Summary:

Suggests a means of resolving TM's problem with the mural circle.

Contributor:
John Herschel Project

Herschel11853

From:
Sir John Herschel
To:
Thomas Maclear
Date:
26 September [1835]
Source of text:
RS:HS 12.212
Summary:

Found Encke's Comet the night before last. Has not had a chance to see Halley's Comet. Will JH come to the Observatory? There are no fleas.

Contributor:
John Herschel Project

Herschel11871

From:
Sir John Herschel
To:
Thomas Maclear
Date:
18 October [1835]
Source of text:
RS:HS 12.230
Summary:

Is glad JH has given his opinion to Francis Beaufort on the subject of observations of the first class. Encke's comet is invisible in the 14-ft. within the range of 10 degrees. Last two nights were very favorable. Has seen Encke's comet three times, and it appears just as he saw it in England.

Contributor:
John Herschel Project

Herschel12095

From:
Sir John Herschel
To:
Thomas Maclear
Date:
15] January [1835
Source of text:
RS:HS 21.165
Summary:

Describing JH's observations and comparing notes.

Contributor:
John Herschel Project

Herschel12096

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[22 January 1835]
Source of text:
RS:HS 21.169
Summary:

Responds to TM's query in his 1835-1-17 about the effect that motion of the center of the mural circle would have on the microscopic readings.

Contributor:
John Herschel Project

Herschel12097

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[7 February 1835]
Source of text:
RS:HS 21.171
Summary:

Additional approaches to resolving TM's mural circle problem [see JH's 1835-2-5].

Contributor:
John Herschel Project

Herschel12098

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[23 February 1835]
Source of text:
RS:HS 21.172
Summary:

More on the mural circle [see JH's 1835-2-7].

Contributor:
John Herschel Project

Herschel12099

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[16 March 1835]
Source of text:
RS:HS 21.173
Summary:

Some comments about constant error in TM's observations.

Contributor:
John Herschel Project

Herschel12100

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[14 April 1835]
Source of text:
RS:HS 21.174
Summary:

About the difficulty of measuring high and low tide with the instruments available to TM; offers the design of an instrument that would measure the mid-point between high and low tides.

Contributor:
John Herschel Project

Herschel12101

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[29 May 1835]
Source of text:
RS:HS 21.176
Summary:

Excited about JH's observations, and has shown them to several people.

Contributor:
John Herschel Project

Herschel12102

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[8 July 1835]
Source of text:
RS:HS 21.180
Summary:

Sends TM some tide observations, and some calculations done on them.

Contributor:
John Herschel Project

Herschel12103

From:
Sir John Herschel
To:
Thomas Maclear
Date:
1] September [1835
Source of text:
RS:HS 21.183
Summary:

Believes that TM is the first to see the return of Halley's Comet [see TM's 1835-9-1].

Contributor:
John Herschel Project

Herschel12104

From:
Sir John Herschel
To:
Thomas Maclear
Date:
26] October [1835
Source of text:
RS:HS 21.184
Summary:

Still struggling with the problems inherent in using the mural circle; the comet has apparently been seen by JH's mechanic, John Stone, prior to having been sighted by TM.

Contributor:
John Herschel Project

Herschel12105

From:
Sir John Herschel
To:
Thomas Maclear
Date:
13] September [1835
Source of text:
RS:HS 21.185
Summary:

Sends information about where to look for Encke's comet.

Contributor:
John Herschel Project

Herschel12106

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1835-9-20 or 21]
Source of text:
RS:HS 21.186
Summary:

Has not had any success in finding comets.

Contributor:
John Herschel Project

Herschel12107

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[23 October 1835]
Source of text:
RS:HS 25.4.15 (C: RS:HS 21.189)
Summary:

Is intrigued by the apparent displacement of several planetary nebulae from the positions found in the catalogues of other observers. Does not know what to think.

Contributor:
John Herschel Project

Herschel12108

From:
Sir John Herschel
To:
Thomas Maclear
Date:
22] September [1835
Source of text:
RS:HS 21.190
Summary:

JH is chagrined to note that he forgot to observe the equinox, after having impressed on any and all the need to do so.

Contributor:
John Herschel Project
Author
Addressee
Correspondent
Date
Document type
Contributor
Transcription available