Search: letter in document-type 
1870-1879::1873::10::12 in date 
Sorted by:

Showing 11 of 1 item

From:
Charles Robert Darwin
To:
George Howard Darwin
Date:
12 Oct [1873]
Source of text:
DAR 210.1: 13
Summary:

Asks GHD whether he can tell him what inclination a polished or waxy leaf ought to hold to the horizon in order to let vertical rain rebound off as much as possible.

Contributor:
Darwin Correspondence Project
thumbnail