Search: Herschel, John in correspondent 
Davidson, Thomas in correspondent 
Herschel, John in addressee 
letter in document-type 
Sorted by:

Showing 13 of 3 items

From:
Thomas Davidson
To:
Sir John Herschel
Date:
[6 February 1862]
Source of text:
RS:HS 6.35
Summary:

Many years ago he read a paper to the Royal Scottish Society of Arts on the merits of JH's telescope compared with that of William Parsons (3rd Earl of Rosse); this paper has never been printed. Gives details of his own optical work.

Contributor:
John Herschel Project
From:
Thomas Davidson
To:
Sir John Herschel
Date:
[12 February 1862]
Source of text:
RS:HS 6.37
Summary:

Is grateful for JH's letter and pamphlet. Worked on portraiture before Mr. Baird and assisted him later. Outlines the various lenses he used and made for other people. Is pleased JH has a good opinion of the work of [W. B.?] Rogers. Is he familiar with the works of [Thomas?] Dicks in astronomy?

Contributor:
John Herschel Project
From:
Thomas Davidson
To:
Sir John Herschel
Date:
[29 February 1862]
Source of text:
RS:HS 6.38
Summary:

Has now had ample time in which to study JH's pamphlet. Comments on various points. Has constructed a 4 1/2" aperture achromatic telescope, but the buyer went bankrupt. Would welcome assistance from JH.

Contributor:
John Herschel Project
Document type
Transcription available