From:
Sir John Herschel
To:
Robert Hunt
Date:
[2 December 1842]
Source of text:
George Eastman House, 11.17 (C: RS:HS 22.143)
Summary:
Sends RH a packet of photographs with a description of each type.
Contributor:
John Herschel Project
Showing 1–3 of 3 items
Sends RH a packet of photographs with a description of each type.
Is anxious for some means to be developed to get a measurable quantity [preferably by weight] from the action of a beam of light on a surface. JH has been experimenting in photography with 'flouric' compounds.
Read John William Draper's papers; although he believes that Draper's instruments are inconsistent, JH feels that they are still important because they are measurable. Decries [L. F.] Moser's skepticism of photography's value, calling it a 'blindfolding to some of the most interesting physical relations that have ever been discovered.'