From:
Andrew Crombie Ramsay
To:
Charles Robert Darwin
Date:
6 May 1863
Source of text:
DAR 176: 11
Summary:
Glad CD likes his Presidential Address to Geological Society [1863].
Will continue the practice [of discussing the break in succession of strata].
Has devised a diagram showing number of genera and species in each geological formation and the number that pass from formation to formation.
Describes the glaciated terrain of S. Wales.
Contributor:
Darwin Correspondence Project