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1830-1839 in date 
Herschel, John in addressee 
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From:
George Biddell Airy
To:
Sir John Herschel
Date:
[1 March 1830]
Source of text:
RS:HS 1.41
Summary:

Informing JH that he and GA have just been appointed to a committee to consider the extension of the Astronomical Society's catalogue. Observations on this catalogue.

Contributor:
John Herschel Project
From:
Mary Somerville
To:
John Herschel
Date:
?? Mar 1830
Source of text:
HS 16.333, RS
Summary:

No summary available.

Contributor:
Brigitte Stenhouse
Text Online
From:
Mary Somerville
To:
Sir John Herschel
Date:
[1 March 1830]
Source of text:
RS:HS 16.330
Summary:

Thanks JH for criticisms of her manuscript. Will outline principles more carefully. Hopes Lady Herschel is 'gaining strength.'

Contributor:
John Herschel Project, Brigitte Stenhouse
From:
Mary Somerville
To:
John Herschel
Date:
6 Mar 1830?
Source of text:
HS 16.331, RS
Summary:

No summary available.

Contributor:
Brigitte Stenhouse
Text Online
From:
Mary Somerville
To:
Sir John Herschel
Date:
[6 March 1830]
Source of text:
RS:HS 16.331
Summary:

Sends first revised pages [of MS's Mechanism of the Heavens] back for further opinion. Highly respects JH's comments and believes he will be a truthful critic as a friend.

Contributor:
John Herschel Project, Brigitte Stenhouse
From:
Charles Babbage
To:
Sir John Herschel
Date:
[8 March 1830]
Source of text:
RS:HS 2.244
Summary:

Latest news of his machine. His book is going to press in 10 days. Would like proofsheet of last sheet of JH's 'Sound.'

Contributor:
John Herschel Project
From:
Thomas Drummond
To:
Sir John Herschel
Date:
[8 March 1830]
Source of text:
RS:HS 6.453
Summary:

Would like JH's drawing of the lake [?] measuring operation.

Contributor:
John Herschel Project
Text Online
From:
Mary Somerville
To:
Sir John Herschel
Date:
[1830-3-9 or later]
Source of text:
RS:HS 16.333
Summary:

Thanks JH for his communications. Anxious to get into the proof JH criticized. Sends [Joseph] LaGrange's variations of constant quantities.

Contributor:
John Herschel Project, Brigitte Stenhouse
From:
Eliza Young
To:
Sir John Herschel
Date:
[10 March 1830]
Source of text:
RS:HS 18.309
Summary:

Asks help in summarizing scientific labors of her late husband, Thomas Young, for memoir by Hudson Gurney. [Addressed to 'William Herschale, Esqr.']

Contributor:
John Herschel Project
From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[10 March 1830]
Source of text:
RS:HS 17.116
Summary:

Hopes to meet JH and [James] South in summer. Announces emperor's decision to support measurement of the 3.5° latitude meridian throughout the entire Russian empire. WS is responsible for directing work in the north. Emphasizes the importance of maintaining correct linear standards uniform with both France and England. Requests a copy of the English standard so as to compare it with the Russian measurements of degrees.

Contributor:
John Herschel Project
From:
Peter Barlow
To:
Sir John Herschel
Date:
[14 March 1830]
Source of text:
RS:HS 3.292
Summary:

Plan for the comparison of the strengths of variously sized telescopes.

Contributor:
John Herschel Project
From:
Robert Spottiswoode
To:
Sir John Herschel
Date:
[16 March 1830]
Source of text:
RS:HS 17.227
Summary:

Reports circumstances surrounding death of a Mr. Beckwith, for whom JH serves as an executor.

Contributor:
John Herschel Project
From:
Davies Gilbert
To:
Sir John Herschel
Date:
[18 March 1830]
Source of text:
RS:HS 8.125
Summary:

Sending a letter he has received, and would like JH's opinion on it [probably about his telescope; see P. Barlow's 1830-3-14].

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[19 March 1830]
Source of text:
RS:HS 2.246
Summary:

Regarding his forthcoming pamphlet and his attitudes to scientific societies. Sent him the wrong page of 'Sound.' Has just returned from Leicestershire. David Brewster sent a problem.

Contributor:
John Herschel Project
From:
Peter Barlow
To:
Sir John Herschel
Date:
[22 March 1830]
Source of text:
RS:HS 3.293
Summary:

Outlining his scheme for the comparison of the strengths of various telescopes, which JH seems to have misunderstood.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[23 March 1830]
Source of text:
RS:HS 2.247 (C: RS:HS 2.248)
Summary:

Regarding his projected biography of Dr. Thomas Young. His own book on the decline of science is in the press. Regarding the life and manners of Dr. Young.

Contributor:
John Herschel Project
From:
William Somerville
To:
John Herschel
Date:
23 Mar 1830
Source of text:
HS 16.388, RS
Summary:

No summary available.

Contributor:
Brigitte Stenhouse
From:
William Somerville
To:
Sir John Herschel
Date:
[23 March 1830]
Source of text:
RS:HS 16.388
Summary:

Mrs. Somerville cannot decide what to call her book [Mechanism of the Heavens]. Please advise so publishing can commence.

Contributor:
John Herschel Project
From:
[Isaac] Gosset
To:
Sir John Herschel
Date:
[1830 to 39]-3-27
Source of text:
RAS:JH Archive 4/2.15 verso; Reel 7
Summary:

Accepts JH's invitation to visit next Thursday. Expecting IG's brother today.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[27 March 1830]
Source of text:
RS:HS 2.251
Summary:

Further remarks on Dr. Thomas Young and JH's projected biography. Has had a copy of a letter from J. F. Encke about an Astronomical Ephemeris for the Society for Promoting Useful Knowledge.

Contributor:
John Herschel Project