From:
Sir John Herschel
To:
[Augustus De Morgan?]
Date:
[30 December 1847]
Source of text:
APS B.H435p.14
Summary:
Is trying to establish the nature of C. I. Gerhardt's request about letters of G. W. Leibniz.
Contributor:
John Herschel Project
Showing 1–4 of 4 items
Is trying to establish the nature of C. I. Gerhardt's request about letters of G. W. Leibniz.
[Responding to JR's 1847-12-28], JH gives advice where to buy actinometers and what features to look for. JH cannot advise about hygrometers as these are to be used in very cold climates.
Provides details about where to buy actinometers, and what type to buy.
Adds list of names for consideration as foreign associates [of the R.A.S.], including Americans. Changes in John Lubbock's requirements for his project.