Search: Maclear, Thomas in author 
1830-1839::1837 in date 
Sorted by:

Showing 120 of 39 items

From:
Thomas Maclear
To:
Sir John Herschel
Date:
[16 February 1837]
Source of text:
RS:HS 12.101
Summary:

Regrets having to send the observations on so many sheets; those in red ink will be re-observed. John Steuart has given him a note about spots on the sun. Sends Mr. Stebbing's letter and would like JH's comments when he sees him.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[23 April 1837]
Source of text:
RS:HS 12.102
Summary:

Intended to ride over today, but urgent mail from England claimed his attention. No news from the Admiralty. No news of the tide machine. The tripods are finished. Gathers that the Bonita cannot perform all D. F. J. Arago wished.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[5 May 1837]
Source of text:
RS:HS 12.103
Summary:

Received the enclosed communications by the steamer. Can JH send him a list of unobserved comet stars? Work on N. L. Lacaille's Observatory gives satisfaction. Regarding Capt. Mackonochee. Lacaille's angular measurements are not above suspicion. Observed the two rings of Saturn distinctly.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[19 May 1837]
Source of text:
RS:HS 12.104
Summary:

Will call on JH tomorrow as he intends visiting Simon's Bay. Is taking a proof sheet to Cape Town. There appears to be a great discrepancy between the Captain's statement and N. L. Lacaille's station. The latter's station at Rubeck Castel remains perfect.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[29 May 1837]
Source of text:
RS:HS 12.105
Summary:

The examination of the standard deal rod was commenced yesterday. Comments on the procedure and gives readings. The base line was levelled on Wednesday, Thursday, and Friday and he is now ready to measure it. Would like JH to be present if possible when he measures it. Had 25 visitors in one morning recently.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[13 June 1837]
Source of text:
RS:HS 12.106
Summary:

Weather was so unpromising that he sent off the men who were to repair the ravages to the base line levelings. Will JH therefore come on Wednesday instead of Monday provided the weather remains fine. Sorry he missed JH's request for barometric comparisons.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[20 June 1837]
Source of text:
RS:HS 12.107
Summary:

Had an unfortunate accident with the rods yesterday; one was smashed by the force of the wind. Intends to stake the whole line before the actual measurement takes place. Will calculate JH's Brisbane stars.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[23 June 1837]
Source of text:
RS:HS 12.108
Summary:

Sends the observations of the 21st copied by his daughter Mary. The leak in the center room has been repaired. Comments on JH's plan for measuring the base line. The Brisbane stars are nearly finished.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[2 November 1837]
Source of text:
RS:HS 12.109
Summary:

Gives a list of the close Polar stars. Started last night to observe the stars on JH's list but was put off by JH's right ascensions. Will observe each star again this night. John Fairbairn cannot divest himself of the apprehension of danger to Andries Stockenström.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[23 November 1837]
Source of text:
RS:HS 12.109bis
Summary:

Encloses a plan of the triangulation and comments on his method. Thinks of making the baseline on the parade a permanent standard and has written to the Governor to obtain permission, as there is friction between the Board of Ordnance and the Cape Authorities over the ownership of the Parade. Has had no reply from the Governor as yet.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[12 December 1837]
Source of text:
RS:HS 12.110
Summary:

The zenith sector was brought by the Wellesley and is now at the Observatory. Outlines some observations he hopes to make with it. Is about to write to R. Thom[p]son. Has some important matters to discuss with JH when he calls.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
23] March [1837
Source of text:
RS:HS 12.180
Summary:

The mica will do beautifully. Sorry to hear of the return of JH's complaint. Will send barometric observations tomorrow.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
3] November [1837
Source of text:
RS:HS 12.181
Summary:

Sends the results of one good night's observations entirely reduced. More transit observations are in process of being reduced.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
22] November [1837
Source of text:
RS:HS 12.182
Summary:

Sending the mean of all the observations on the polars. Comments on the base line, and gives readings.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
14] June [1837
Source of text:
RS:HS 12.188
Summary:

Weather is most provoking. Thinks it best to delay the action until Friday.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
31] July [1837
Source of text:
RS:HS 12.189
Summary:

Is pleased to have a look at JH's labors, but is not at home with the observations. Sorry to hear of JH's bodily sufferings. Has another sheet printed off, but no copies at the moment. Transit clock has increased its daily rate. South end of the mural circle has heaved up. Land to west of the Observatory is being discussed with view to purchase.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[1837-5]
Source of text:
RS:HS 12.190
Summary:

Returns JH's book of estimated magnitudes and would like it again when preparing his catalogue. Sends letters he received from Francis Beaufort and [Richard?] Jones. Is oppressed with business and an awful cough.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
21] July [1837
Source of text:
RS:HS 12.191
Summary:

Thanks for JH's interest in the 'little fellow'; he has now passed all danger. Is glad JH has unravelled the mysteries of h Centauri. Wrote to Thomas Brisbane pointing out imperfections in the catalogue. Has started to publish an abstract of the Met[eorological] J[our]n[a]l in the Government Gazette. Will not attend the glittering assembly at Government House tonight.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
7?] April [1837
Source of text:
RS:HS 12.192
Summary:

Sends the Comptes rendus in which he will find the notice TM alluded to. Beautiful definition last night. Gauze diminishes the light without further mischief.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
17?] December [1837
Source of text:
RS:HS 12.193
Summary:

Thanks for the interesting account of the star whose variability has now been established. Used the 3 1/2 foot last night and definition was good. Returns JH's letter to [James?] Dunlop and thinks there should be no offense taken. Opening for the Zenith is being enlarged. Measured JH's azimuth East and West yesterday.

Contributor:
John Herschel Project