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Pole, William in correspondent 
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Herschel1985

From:
Sir William Pole
To:
Sir John Herschel
Date:
[6 August 1856]
Source of text:
RS:HS 14.18
Summary:

Thanks JH for his note. States R.S.L. is sending his paper to JH as a referee. Gives details of his own case of di-chromic vision.

Contributor:
John Herschel Project

Herschel1986

From:
Sir William Pole
To:
Sir John Herschel
Date:
[12 November 1856]
Source of text:
RS:HS 14.19
Summary:

Gives particulars of his vision, which WP characterizes as di-chromic. Recounts experiments with red glass sent by JH to WP. Offers to visit if JH wants personal interview.

Contributor:
John Herschel Project

Herschel1987

From:
Sir William Pole
To:
Sir John Herschel
Date:
[17 November 1856]
Source of text:
RS:HS 14.20
Summary:

Thanks JH for note explaining colored glasses and 'positive' colors, saying WP only had a chance to do experiments with 'negative' colors thus far. Accepts JH's invitation to visit.

Contributor:
John Herschel Project

Herschel1988

From:
Sir William Pole
To:
Sir John Herschel
Date:
1857-7
Source of text:
RS:HS 14.21
Summary:

Explains why his paper on color vision took the artist, dyer, etc., point of view rather than that of scientific chromatology. Willing to investigate a more scientific approach and asks permission for another visit.

Contributor:
John Herschel Project

Herschel1989

From:
Sir William Pole
To:
Sir John Herschel
Date:
[15 August 1857]
Source of text:
RS:HS 14.22
Summary:

Plans to visit JH next week [to discuss color blindness].

Contributor:
John Herschel Project

Herschel1990

From:
Sir William Pole
To:
Sir John Herschel
Date:
[17 August 1857]
Source of text:
RS:HS 14.23
Summary:

Will bring [M. E.] Chevreul's color diagrams and new spectrum representation when he visits JH; confirms mode and date of arrival.

Contributor:
John Herschel Project

Herschel1991

From:
Sir William Pole
To:
Sir John Herschel
Date:
[30 August 1857]
Source of text:
RS:HS 14.24
Summary:

Thanks Herschels for their hospitality and tells about layers of volcanic ash encountered on a walk.

Contributor:
John Herschel Project

Herschel1992

From:
Sir William Pole
To:
Sir John Herschel
Date:
[23 July 1860]
Source of text:
RS:HS 14.25
Summary:

Describes, using a diagram, how the solar protuberances appeared to him as a color-blind person when he observed a solar eclipse.

Contributor:
John Herschel Project

Herschel1993

From:
Sir William Pole
To:
Sir John Herschel
Date:
[6 August 1860]
Source of text:
RS:HS 14.26
Summary:

Thanks for note of 29 [July]. Expresses doubt over accuracy of his observations of a solar eclipse. Stresses the necessity of careful comparison of various observations. Asks JH's opinion of a photograph with prominences greater and corona less than supposed.

Contributor:
John Herschel Project

Herschel1994

From:
Sir William Pole
To:
Sir John Herschel
Date:
[12 December 1860]
Source of text:
RS:HS 14.27
Summary:

Sends his certificate for the R.S.L. to JH to sign.

Contributor:
John Herschel Project

Herschel1995

From:
Sir William Pole
To:
Sir John Herschel
Date:
[26 May 1868]
Source of text:
RS:HS 14.28
Summary:

Thanks JH for his note. Asks that JH's paper on scales [1868 'On Musical Scales'] be made available to him.

Contributor:
John Herschel Project

Herschel1996

From:
Sir William Pole
To:
Sir John Herschel
Date:
[18 March 1869]
Source of text:
RS:HS 14.29
Summary:

Notices in letter of last May JH's postscript about the rate of color blindness occurring to overworked or ill artists, and doubts it becomes di-chromic, but merely a 'weakness' of vision.

Contributor:
John Herschel Project
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