Search: Herschel, John in correspondent 
1860-1869::1864::06 in date 
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Herschel14594

From:
Sir John Herschel
To:
[Edward Sabine?]
Date:
[1864-6]
Source of text:
TxU:H/M-0579.2; Reel 1093
Summary:

Pendulum experiments are already approved at principal stations in Russian trigonometrical survey. Recent communication from J. H. Pratt to R.S.L. about pendulum observations.

Contributor:
John Herschel Project

Herschel6846

From:
Warren de La Rue
To:
Sir John Herschel
Date:
[1 June 1864]
Source of text:
RS:HS 6.154
Summary:

Agrees with him that J. Müller's drawings do not show the entities around the sunspot clearly. Has nearly completed the apparatus for holding one of JH's sun prisms to his reflector. Hopes to do something with it soon.

Contributor:
John Herschel Project

Herschel12228

From:
James Nasmyth
To:
Sir John Herschel
Date:
[2 June 1864]
Source of text:
RS:HS 13.85
Summary:

Concerned to hear that JH's health suffered as the result of the visit to JN. Happy that Warren de La Rue and [J.?] Müller are giving their attention to the objects on the sun. Comments on a peculiar sunspot. Appreciates the promise of the new edition of JH's Outlines Astr. Thanks for the cuneiform signature.

Contributor:
John Herschel Project

Herschel1501

From:
Sir John Herschel
To:
Sir Charles Lyell
Date:
[2 June 1864]
Source of text:
APS B.D25.L.5
Summary:

Writes to introduce JH's son William James and his new bride to the Lyell's. Both JH and his wife, Margaret, are suffering from illness.

Contributor:
John Herschel Project

Herschel180

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[3 June 1864]
Source of text:
RGO 6.255.44
Summary:

About observing a grain-shaped spot on the sun; greetings to Friedrich Winnecke.

Contributor:
John Herschel Project

Herschel5387

From:
Sir John Herschel
To:
Charles Babbage
Date:
[5 June 1864]
Source of text:
RS:HS 2.334
Summary:

Thanking him for his book [probably Passages in the Life of a Philosopher].

Contributor:
John Herschel Project

Herschel8002

From:
Friedrich August Theodor Winnecke
To:
Sir John Herschel
Date:
[6 June 1864]
Source of text:
RS:HS 18.269
Summary:

Became interested in astronomy as a result of reading the papers of William Herschel. FW read these at Hanover in the collection of Caroline Herschel. FW is now trying to arrange a visit to JH.

Contributor:
John Herschel Project

Herschel7806

From:
James Thomas Walker
To:
Sir John Herschel
Date:
[6 June 1864]
Source of text:
RS:HS 18.14
Summary:

Returned from Gloucestershire. Will visit Collingwood on Monday.

Contributor:
John Herschel Project

Herschel5542

From:
Charles T. Beke
To:
Sir John Herschel
Date:
[8 June 1864]
Source of text:
RS:HS 4.32
Summary:

Sending a draft of a memorial for JH to sign.

Contributor:
John Herschel Project

Herschel14439

From:
Edward Sabine
To:
Sir John Herschel
Date:
[9 June 1864]
Source of text:
TxU:H/M-0528; Reel 1093
Summary:

Encloses description of Col. [J. T.?] Walker's experiments. Asks for JH's opinion of these.

Contributor:
John Herschel Project

Herschel8003

From:
Friedrich August Theodor Winnecke
To:
Sir John Herschel
Date:
[9 June 1864]
Source of text:
RS:HS 18.270
Summary:

Needs to make some adjustment about FW's visit to JH, as FW was not aware that Sunday trains in Britain run differently from other days.

Contributor:
John Herschel Project

Herschel12948

From:
Sir John Herschel
To:
Edward Sabine
Date:
[1864-6-9 or later]
Source of text:
TxU:H/L-0360.1; Reel 1054
Summary:

Pendulum experiments to be conducted at stations of Great Indian Trigonometrical Survey.

Contributor:
John Herschel Project

Herschel12963

From:
Sir John Herschel
To:
Edward Sabine
Date:
[11 June 1864]
Source of text:
TxU:H/L-0376; Reel 1054 (C: RS:HS 24.47)
Summary:

Plans to confer with [J. T.] Walker and F. A. T. Winnecke from Pulkovo to learn of Russian pendulum experiments before reporting to R.S.L. council. J. H. Pratt's measurement of polar axis and theory about earth's center of gravity.

Contributor:
John Herschel Project

Herschel3393

From:
Sir John Herschel
To:
Edward Sabine
Date:
[16 June 1864]
Source of text:
RS MC.7.99
Summary:

Gives reasons for and discusses technicalities of supporting pendulum experiments at astronomical and geodesical stations in Indian trigonometrical survey.

Contributor:
John Herschel Project

Tyndall2111

From:
John Herschel
To:
John Tyndall
Date:
June 18 1864
Source of text:
HS 393b; MS JT/1/H/101; MS JT/1/TYP/2/524-7, RS; RI
Summary:

No summary available.

Contributor:
Tyndall Project

Herschel880

From:
Sir John Herschel
To:
the London Times
Date:
[18 June 1864]
Source of text:
JHS 5.1
Summary:

Supports, for scientific and commercial reasons, the retention of the British system of measures, arguing against adoption of the metric or decimal system.

Contributor:
John Herschel Project

Herschel8004

From:
Friedrich August Theodor Winnecke
To:
Sir John Herschel
Date:
[26 June 1864]
Source of text:
RS:HS 18.271
Summary:

Thanks JH for the day spent with him. FW tells JH about the situation of the grave of Caroline Herschel. Includes silhouette pictures found at Mrs. Groskopf's.

Contributor:
John Herschel Project

Herschel5543

From:
Charles T. Beke
To:
Sir John Herschel
Date:
[29 June 1864]
Source of text:
RS:HS 4.33
Summary:

Sending the memorial for JH to sign.

Contributor:
John Herschel Project

Herschel10276

From:
James Haig
To:
Sir John Herschel
Date:
[29 June 1864]
Source of text:
RS:HS 9.159
Summary:

Sending another copy of a new edition of one of his books. Thinks he stated too strongly his objections to other people's work in his previous edition. Hopes JH will find time to read it.

Contributor:
John Herschel Project

Herschel7782

From:
Sir John Herschel
To:
the R.A.S.
Date:
[29 June 1864]
Source of text:
RAS: MSS Add.29 [suppl.]
Summary:

Learned that R.A.S. plans to use aplanatic lenses for solar studies. Submits set of unpublished tables by W. L. Newman [see Newman's 1845-2-18] for calculating radii of such lenses. Refers to work of this kind by Josef Fraunhofer, [G. P.] Bond, K. A. Steinheil, and C. F. Gauss.

Contributor:
John Herschel Project
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