Search: Herschel, John in author 
1850-1859::1856 in date 
De Morgan, Augustus in addressee 
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Showing 1–4 of 4 items

Herschel7045

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[19 May 1856]
Source of text:
RS:HS 23.172
Summary:

Comments on the state of JH's health, and on things astronomical and mathematical.

Contributor:
John Herschel Project

Herschel1150

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[1856-6-7 or earlier
Source of text:
RS:HS 25.14.7
Summary:

Wants to make a new musical instrument on the principle of resonance; JH also suggests some improvements in the construction of the organ.

Contributor:
John Herschel Project

Herschel7053

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[12 September 1856]
Source of text:
RS:HS 6.289 & 23.181
Summary:

Thought that AD's last letter was supposed to be written in verse. Hopes his injury will soon improve. Does not recollect any habit of Humphry Davy rubbing his hands together. A professor, [G. J.?] Stoney, has re-invented JH's collimating telescope and not improved it.

Contributor:
John Herschel Project

Herschel7056

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[11 November 1856]
Source of text:
RS:HS 23.183
Summary:

Comments on the state of JH's health, color blindness, missing R.A.S. Notices, and decimal coinage.

Contributor:
John Herschel Project
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