From:
Sir John Herschel
To:
Secretary of R.S.L. Physical Committee
Date:
[1842 or later]
Source of text:
TxU:H/L-0722; Reel 1089
Summary:
Offers to provide committee with plans for and to supervise construction of new instrument, devised by JH, for study of solar spectrum.
Contributor:
John Herschel Project