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Photographic News in correspondent 
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From:
Sir John Herschel
To:
Photographic News
Date:
[13 October 1858]
Source of text:
Photographic News, 1 (Oct. 29, 1858), 86
Summary:

Discusses the use in photography of a metallic substance named Junonium.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[6 November 1858]
Source of text:
Photographic News, 1 (Nov. 12, 1858), 110
Summary:

Discusses the use of the stereoscope, including stereoscopic views of the moon and sun. Also discusses the appropriate stereoscopic angle.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[20 August 1859]
Source of text:
Photographic News, 3 (Sept. 9, 1859), 2-3
Summary:

Recounts experiments JH conducted on the action of the solar spectrum on various silver salts. Explains how JH produced his solar spectrum.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[7 May 1860]
Source of text:
Photographic News, 4 (May 11, 1860), 13
Summary:

Discusses the possibility of stereoscopic photography of action scenes. Also speculates about color photography.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[30 June 1860]
Source of text:
Photographic News, 4 (1860), 118
Summary:

[Writing under the pseudonym 'Redde Suum Cuique'], JH notes that a recently published process for recovering silver from old plate was in fact anticipated by James Keir in a 1790 R.S.P.T. paper. Attacks a recent misuse of the word 'actinometer.'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[7 February 1864]
Source of text:
TxU:H/L-0303; Reel 1054
Summary:

Asserts that a process for obtaining 'Turnbull's blue' recently published in PN was discovered and published in 1842 by JH. Adds a second case in which JH anticipated another author's result.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[22 October 1864]
Source of text:
TxU:H/L-0304 & -0305.2; Reel 1054
Summary:

Notes introduction of 'Worthytype' process into commercial photography. Calls attention to process discovered by JH in 1832 for purifying uranium.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[22 October 1864]
Source of text:
Photographic News, 8 (Oct. 28, 1864), 520 & American Journal of Photography, n.s
Summary:

Describes a method created by JH [see JH's 'Lettre ... sur ... un nouveau procédé pour effectuer la purification complète de l'oxide d'urane,' Annales de chimie, 49 (1832), 306-11] for obtaining pure uranium.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[28 December 1865]
Source of text:
Photographic News, 10 (Jan. 5, 1866), 5-6 & American Journal of Photography, n.s
Summary:

Discusses recent progress in color photography. Stresses that what is most needed is a way of making negatives from which colored positives can be produced. Recounts JH's recent experiments relating to the action of light on solutions of platinum.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[16 January 1866]
Source of text:
Photographic News, 10 (Jan. 19, 1866), 35
Summary:

Reveals the solution to a cipher given in JH's 1865-12-28 letter to PN.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[19 May 1866]
Source of text:
Photographic News, 10 (May 25, 1866), 244
Summary:

Quotes from an 1840 publication by JH to show JH's priority over a recent request for a patent for 'Magic pictures.' Recounts some recent photographic experiments by JH on the action of light on platinum.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[27 October 1867]
Source of text:
Photographic News, 11 (Nov. 8, 1867), 541-2
Summary:

Maintains that JH did not invent the thaumsacope [thaumatrope], which some have ascribed to him. JH does note that he proposed moving pictures in an 1860 publication, five years before Alonzo G. Grant sought patent protection for this idea.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[25 January 1868]
Source of text:
RS:HS 14.160
Summary:

Points out that [Joel?] Spiller's article, 'Hyposulphite of Ammonia for fixing,' is 'copied verbatim' from a work of JH's.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Photographic News
Date:
[31 January 1868]
Source of text:
Photographic News, 12 (Jan. 31, 1868), 57
Summary:

Discusses the action of hyposulphite of ammonia on muriate of silver. Gives directions for preparing hyposulfite of silver.

Contributor:
John Herschel Project
Document type
Transcription available