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To Charles Lyell   4 May [1869]

Summary

Asks for a photograph of CL to be used by a society [in Serbia].

Comments on article by Wallace ["Sir Charles Lyell on geological climates and the Origin", Q. Rev. 126 (1869): 359–94].

Has finished new edition of Origin [5th (1869)]

and is back at work on sexual selection [Descent].

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  4 May [1869]
Classmark:  American Philosophical Society (Mss.B.D25.369)
Letter no:  DCP-LETT-6725

To J. V. Carus   4 May 1869

Summary

Discusses changes in 5th edition of Origin owing to new evidence. CD now places more value on action of external conditions; thinks lapse of time [required for development of species] not so great as some geologists have thought, and single variations [saltations] of even less importance compared with individual differences.

Author:  Charles Robert Darwin
Addressee:  Julius Victor Carus
Date:  4 May 1869
Classmark:  Staatsbibliothek zu Berlin – Preußischer Kulturbesitz (Slg. Darmstaedter Lc 1859: Darwin, Charles, Bl. 41–42)
Letter no:  DCP-LETT-6726