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Herschel12155

From:
D. McNeill
To:
Sir John Herschel
Date:
[17 December 1868]
Source of text:
RS:HS 13.13
Summary:

Will be sending some Pyretheum roseum and some birdlime with instructions for their use. Wrote a few lines to JH's son.

Contributor:
John Herschel Project

Herschel14052

From:
Charles Sterry
To:
Sir John Herschel
Date:
[3 December 1868]
Source of text:
TxU:H/M-0274; Reel 1087
Summary:

Disappointed that Benjamin Disraeli's secretary, Charles Fremantle, was appointed to vacancy left at Mint by death of William H. Barton. Thanks for JH's efforts on CS's behalf.

Contributor:
John Herschel Project

Herschel1453

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[1 December 1868]
Source of text:
RS:HS 17.72
Summary:

Organizational matters regarding paper reports; comments on light from sun's corona [see JH's 1868-11-8].

Contributor:
John Herschel Project

Herschel1454

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[2 December 1868]
Source of text:
Cambridge University Library 7656/H720
Summary:

Further comments on solar light [see GS's 1868-12-1].

Contributor:
John Herschel Project

Herschel1455

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[10 December 1868]
Source of text:
RS:HS 17.73
Summary:

Asks JH to look at a paper on musical scales; comments on a paper by A. Prazmosky on polarization of light from the solar corona.

Contributor:
John Herschel Project

Herschel1456

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[12 December 1868]
Source of text:
Cambridge University Library 7656/H721
Summary:

Returns paper on musical scales; agrees with GS's comments on A. Prazmosky's paper [see GS's 1868-12-10].

Contributor:
John Herschel Project

Herschel1457

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[25 December 1868]
Source of text:
Cambridge University Library 7656/H722
Summary:

Comments on a paper on the effects of lateral movement in diminishing the intensity of sound.

Contributor:
John Herschel Project

Herschel2437

From:
Edward Sabine
To:
Sir John Herschel
Date:
[12 December 1868]
Source of text:
RS:HS 15.291
Summary:

Asks JH to sign [C. P. B.] Walker's certificate for the R.S.L.

Contributor:
John Herschel Project

Herschel3106

From:
Adolphe Quetelet
To:
Sir John Herschel
Date:
[28 December 1868]
Source of text:
RS:HS 14.271
Summary:

Announces first volume of Physique sociale will appear soon. Discusses humans and law of nature. Says science is neglected in France.

Contributor:
John Herschel Project

Herschel3183

From:
Edward Sullivan
To:
Sir John Herschel
Date:
2 December [1868]
Source of text:
RS:HS 17.249
Summary:

Thanks JH for sending plan for swinging cot to prevent seasickness [see ES's [1868]-11-28] and asks for more information.

Contributor:
John Herschel Project

Herschel3186

From:
Sir John Herschel
To:
Patrick Shanahan
Date:
9?] December [1868
Source of text:
RS:HS 17.201
Summary:

To JH's knowledge, PS's Royal Mint position bore no absolute guarantee of permanence unless he had been paying a 'superannuation' fund.

Contributor:
John Herschel Project

Herschel3218

From:
James Sivewright
To:
Sir John Herschel
Date:
[2 December 1868]
Source of text:
RS:HS 17.213
Summary:

Thanks JH for sending plan of swing to counteract seasickness. This will enable his long suffering friend Lady Sullivan to escape hay fever by going to sea but without thereby being beset by seasickness.

Contributor:
John Herschel Project

Herschel3304

From:
James Scotson
To:
Sir John Herschel
Date:
[4 December 1868]
Source of text:
RS:HS 17.182
Summary:

Asks JH where to find further information about a salt road and cliffs mentioned in JH's Physical Geography.

Contributor:
John Herschel Project

Herschel3427

From:
John Tyndall
To:
Sir John Herschel
Date:
3 December [1868]
Source of text:
RS:HS 17.412 (C: RI 555)
Summary:

Continues experiments with carbonic acid and electric light [see JT's 1868-11-30], suggesting possible cause of blue cloud color and eventual whitening of light.

Contributor:
John Herschel Project

Herschel3428

From:
John Tyndall
To:
Sir John Herschel
Date:
12 December [1868]
Source of text:
RS:HS 17.413 (C: RI 556)
Summary:

Asks JH to review paper on blue color of sky, polarization of skylight, and polarization of light by cloudy matter.

Contributor:
John Herschel Project

Herschel3535

From:
Sir John Herschel
To:
John Tyndall
Date:
[2 December 1868]
Source of text:
RS:HS 17.405b (C: 24.242; C: RI 553-4)
Summary:

Thinks JT's work on polarization will lead to remarkable discovery. Discusses production of rainbow, parallels to Isaac Newton's explanation of black spot on a soap bubble, and problems in JT's undulatory theory explanation of reflection. In JT's experiments, what are nebulous particles produced by light in gas or vapor?

Contributor:
John Herschel Project

Herschel3536

From:
John Tyndall
To:
Sir John Herschel
Date:
[1 December 1868]
Source of text:
RS:HS 17.405a (C: RI 551-2)
Summary:

Continues experiments with carbonic acid and electric light [see JT's 1868-11-30], hoping to 'explode' idea that atmosphere's polarization is due to reflection by air particles.

Contributor:
John Herschel Project

Herschel3537

From:
Sir John Herschel
To:
John Tyndall
Date:
[14 December 1868]
Source of text:
RS:HS 24.243 (C: RI 557-8)
Summary:

Thanks for paper verifying JH's prediction that explanation of blue sky color carries with it that of polarization of skylight. Involves ultimate link between chemical and analytical dynamics. Notes that 'neutral points' in sky polarization have yet to be explained; offers tentative explanation based on clues in JT's work.

Contributor:
John Herschel Project

Herschel4568

From:
Frederick Pollock
To:
Sir John Herschel
Date:
[12 December 1868]
Source of text:
RS:HS 14.176
Summary:

Thanks JH for reply to letter questioning color experiment in JH's Familiar Lectures. Will conduct the experiment that JH suggests in the book.

Contributor:
John Herschel Project

Herschel4570

From:
Frederick Pollock
To:
Sir John Herschel
Date:
[5 December 1868]
Source of text:
RS:HS 14.175
Summary:

Discusses an experiment, described by JH in JH's Familiar Lectures, involving applying colors to paper. FP finds that his results differ from JH's.

Contributor:
John Herschel Project
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