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
Showing 1–4 of 4 items
Comments on the state of JH's health, and on things astronomical and mathematical.
Wants to make a new musical instrument on the principle of resonance; JH also suggests some improvements in the construction of the organ.
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.
Comments on the state of JH's health, color blindness, missing R.A.S. Notices, and decimal coinage.