From:
Charles Robert Darwin
To:
Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
Date:
10 Sept 1876
Source of text:
Archives Gaston de Saporta (private collection)
Summary:
Hopes GdeS will publish on subjects discussed in his letter [10587]. CD had noted similar persistence of variation in fossil shells.
Calls his attention to Nägeli’s work on Hieracium.
Expresses skepticism about O. Heer’s view that dicotyledonous plants developed suddenly. Believes they must have developed slowly in some part of the globe completely isolated from other regions.
Contributor:
Darwin Correspondence Project