From:
William Lassell
To:
Sir John Herschel
Date:
[8 February 1860]
Source of text:
RS:HS 11.156
Summary:
Sends a lithograph of the 4-ft. aperture equatorial. Has made no observations with it yet. Had difficulty with the surface of the speculum. Comments on the drawing and on the use of the instrument. Cannot recollect seeing any of the irregularities pointed out by JH in his letter.
Contributor:
John Herschel Project