Search: Maclear, Thomas in addressee 
1830-1839::1835 in date 
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Showing 1–20 of 38 items

Herschel3791

From:
Sir John Herschel
To:
Thomas Maclear
Date:
7] January [1835
Source of text:
unknown
Summary:

Too ill to attend the South African Institution meeting; asks JH to turn in the packet containing TM's and JH's meteorological observations.

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

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

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

Herschel3904

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[3 March 1835]
Source of text:
unknown
Summary:

Found two planetary nebulae not listed in any catalog; hopes to show them to JH tonight.

Contributor:
John Herschel Project

Herschel3905

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[1835-3-7 or 8]
Source of text:
unknown
Summary:

Apologizes for his erroneous reduction. Thanks TM for his list of 'Zenith points.'

Contributor:
John Herschel Project

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

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

Herschel3906

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[11 June 1835]
Source of text:
unknown
Summary:

William Whewell asked JH to compare their June tidal observations with those of the British Admiralty; JH will urge John Deas Thompson to be extra precise in his findings.

Contributor:
John Herschel Project

Herschel3789

From:
Sir John Herschel
To:
Thomas Maclear
Date:
25] June [1835
Source of text:
unknown
Summary:

Made a 'mess' of the tidal observation and meteorological observations that he took earlier in the week.

Contributor:
John Herschel Project

Herschel3909

From:
Sir John Herschel
To:
Thomas Maclear
Date:
25] June [1835
Source of text:
unknown
Summary:

Attempting to correct the faulty tidal and meteorological observations that JH made earlier in the week.

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

Herschel3910

From:
Sir John Herschel
To:
Thomas Maclear
Date:
[5 July 1835]
Source of text:
unknown
Summary:

Busy interpolating the Simon's Bay tidal series; JH then intends to study Table Bay and to compare the results. Asked William Whewell to back an application to the British Admiralty for a tide clock to be erected at Simon's Bay as a permanent tide station.

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

Herschel3911

From:
Sir John Herschel
To:
Thomas Maclear
Date:
26] July [1835
Source of text:
unknown
Summary:

Describes his comparison of the tidal series at Simon's Bay and Table Bay. Sending his barometer to TM.

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
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