Search: Herschel, John in correspondent 
1860-1869::1869::07 in date 
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Herschel7220

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1 July 1869]
Source of text:
RS:HS 24.273
Summary:

About AD's health and the cold summer.

Contributor:
John Herschel Project

Herschel13559

From:
Sir John Herschel
To:
Thomas Warner
Date:
[7 July 1869]
Source of text:
'Preface to Improved Edition' of Thomas Warner, How To Keep the Clock Right (187
Summary:

Received TW's book and approves simplicity and economy of its method of keeping time by using small fixed telescope to reduce star observations. Disapproves of using 'Dominical Letters.' Suggests using Julian dates.

Contributor:
John Herschel Project

Herschel7888

From:
Thomas Warner
To:
Sir John Herschel
Date:
[1869-7-7 or earlier
Source of text:
RS:HS 18.91
Summary:

Please review TW's enclosed new book on civil time-keeping: How to Keep the Clock Right. [JH annotation: Answered 7 July.]

Contributor:
John Herschel Project

Herschel10981

From:
William Stanley Jevons
To:
Sir John Herschel
Date:
[9 July 1869]
Source of text:
RS:HS 10.327
Summary:

Was very happy to receive JH's remarks on his little logical work. Comments on this work. Is not satisfied with the logic of J. S. Mill. Has not seen [James] Haig's work yet, but hopes to read it on return from the Continent.

Contributor:
John Herschel Project

Herschel13274

From:
Sir John Herschel
To:
John Herschel (son)
Date:
[14 July 1869]
Source of text:
TxU:H/L-0531; Reel 1053
Summary:

Glad for Mary's recovery. Congratulations on John's promotion to captain. Suggests method to study solar prominences without spectroscope. [Letter continues 15 June:] Alexander Herschel reports that G. B. Airy tried this method unsuccessfully long ago, but JH is sure it will work.

Contributor:
John Herschel Project

Herschel3150

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[15 July 1869]
Source of text:
RS RR.6.14
Summary:

Reports on paper [R.S.P.T., 159,. 575-] by [Thomas] Andrews on continuity of gaseous and liquid states of matter, believing it fit for publication.

Contributor:
John Herschel Project

Herschel1460

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[18 July 1869]
Source of text:
Cambridge University Library 7656/H724
Summary:

Note to accompany an extract from JH's son John's letter, reporting on his observations of solar prominences.

Contributor:
John Herschel Project

Herschel1461

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[20 July 1869]
Source of text:
RS:HS 17.75
Summary:

Extended comments on John Herschel's [JH's son] observations of the spectrum of the solar corona.

Contributor:
John Herschel Project

Herschel7221

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[22 July 1869]
Source of text:
RS:HS 24.274
Summary:

Concerned about AD's health. Offers theory of the constitution of matter.

Contributor:
John Herschel Project

Herschel11149

From:
Hermann Kindt
To:
Sir John Herschel
Date:
[24 July 1869]
Source of text:
RS:HS 11.37
Summary:

Thanks JH for his letter and package of his writings.

Contributor:
John Herschel Project

Herschel8718

From:
Richard Anthony Proctor
To:
Sir John Herschel
Date:
[24 July 1869]
Source of text:
RS:HS 14.112
Summary:

Cites various celestial appearances as a basis for concluding that the Milky Way takes the form, not of a disk or ring, but of a series of convolutions. Urges that the nebulae form part of the Milky Way rather than being separate universes, as many had suggested. Asks JH to critique these ideas.

Contributor:
John Herschel Project

Herschel7222

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[26 July 1869]
Source of text:
RS:HS 6.406
Summary:

Health is not good. Is not up to the theory of atoms. Have had broiling heat for many weeks.

Contributor:
John Herschel Project

Herschel12470

From:
Francis Cranmer Penrose
To:
Sir John Herschel
Date:
[26 July 1869]
Source of text:
RS:HS 13.336
Summary:

A note to accompany a paper by FP on the prediction of occultations and eclipses.

Contributor:
John Herschel Project

SOMERVILLE343

From:
John Herschel
To:
Mary Somerville
Date:
30 Jul 1869
Source of text:
HS 24.275, RS
Summary:

No summary available.

Contributor:
Brigitte Stenhouse

Herschel2685

From:
Sir John Herschel
To:
Mary Somerville
Date:
[30 July 1869]
Source of text:
RS:HS 24:275
Summary:

Attached comments [not included] convey JH's views on MS's new manuscript [On Molecular and Microscopical Science, 1869]. Expresses reservations about MS's endorsement of current ideas of forces and their correlation and conservation.

Contributor:
John Herschel Project
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