From:
Charles Robert Darwin
To:
Sir John Herschel
Date:
7 May [1848]
Source of text:
RS:HS 6.15
Summary:
Sends his manuscript. P.O. has been unable to trace the missing parcel. Comments on J. B. Elie de Beaumont's method of measuring lava streams; emphasizes the importance of repeated observations. Would like copies of the manual when completed.
Contributor:
John Herschel Project