Search: Herschel, John in correspondent 
Birt, William Radcliffe in correspondent 
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letter in document-type 
1840-1849::1840 in date 
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Herschel8273

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[22 May 1840]
Source of text:
RS:HS 19.79-80 (C: RS:HS 22.52)
Summary:

How to reduce barometer observations and project them in curves. R.S.L. will provide table by H. C. Schumacher for this purpose. How to obtain 'law of decimal oscillations' for each station. WB's name will be affixed to results. JH needs receipt for observations, which belong to South African Literary and Philosophical Society.

Contributor:
John Herschel Project

Herschel8274

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[18 July 1840]
Source of text:
RS:HS 19.81
Summary:

L. A. J. Quetelet's observations follow centigrade thermometer and French meter. Latitude and longitude for five sites. Three sites are unknown to JH. Hopes WB completes [reduction of barometer observations] before B.A.A.S. meeting.

Contributor:
John Herschel Project

Herschel8275

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[24 July 1840]
Source of text:
RS:HS 19.82
Summary:

Advice on how to project barometric observations onto curves.

Contributor:
John Herschel Project

Herschel8277

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[9 September 1840]
Source of text:
RS:HS 19.84
Summary:

WB's tables [of barometer observations] are beautifully executed. Will submit them to B.A.A.S. Notes dissimilarity of British and Irish data.

Contributor:
John Herschel Project

Herschel8278

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[14 December 1840]
Source of text:
RS:HS 19.85
Summary:

Sends barometer observations from Flushing series, Elias Loomis in U.S., and [J. S.] McCord in Montreal. Can WB prepare these before next B.A.A.S. meeting?

Contributor:
John Herschel Project

Herschel8279

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[28 December 1840]
Source of text:
RS:HS 19.86
Summary:

Returns WB's 'Curves,' which JH presented to B.A.A.S. Sends results of 1837-1838 [barometer] observations by Captain [Edward] Belcher along Pacific coast of North and Central America.

Contributor:
John Herschel Project
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