From:
Sir John Herschel
To:
John William Draper
Date:
[5 December 1842]
Source of text:
RS:HS 25.6.16
Summary:
Comments on JD's work in photography; JH goes on to talk about JH's ideas of 'chemical' rays of light.
Contributor:
John Herschel Project
Showing 1–3 of 3 items
Comments on JD's work in photography; JH goes on to talk about JH's ideas of 'chemical' rays of light.
Comments on writings of JD on the chemistry of plants [letter completed 1845-5-7].
Critiques JD's paper on plant chemistry, contrasting 'luminous, colorific, calorific, & chemical or photographic' rays. Physics of light. [Letter continues two months later.] JH is done with photography. Has no desire to claim priorities in that field. Entrusts future to JD and others.