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Herschel, John in correspondent 
Pepys, William Hasledine in correspondent 
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From:
William Hasledine Pepys
To:
Sir John Herschel
Date:
[30 January 1821]
Source of text:
RS:HS 13.337
Summary:

Invites JH to the London Institution to meet Humphry Davy.

Contributor:
John Herschel Project
From:
William Hasledine Pepys
To:
Sir John Herschel
Date:
[11 March 1823]
Source of text:
RS:HS 13.338
Summary:

Invites JH to London Institution to observe an experiment.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Hasledine Pepys
Date:
[9 November 1845]
Source of text:
RS:HS 13.339 & 22.256
Summary:

Asks WP to recall the particulars of an experimental session [see WP's 1823-3-11] where JH tried to demonstrate the polarization of light by an electrical current in a coil of wire.

Contributor:
John Herschel Project
From:
William Hasledine Pepys
To:
Sir John Herschel
Date:
[12 November 1845]
Source of text:
RS:HS 13.340
Summary:

WP identifies date and people present at the time of the experiment referred to by JH in his 1845-11-9.

Contributor:
John Herschel Project