To Charles Lyell [3 January 1850]
Summary
Discusses CL’s paper, "On craters of denudation" [Q. J. Geol. Soc. Lond. 6 (1850): 207–34], which "will be a thorn in the side of É[lie] de B[eaumont]". Notes evidence from Galapagos overlooked by CL. Mentions other examples of craters.
Author: | Charles Robert Darwin |
Addressee: | Charles Lyell, 1st baronet |
Date: | [3 Jan 1850] |
Classmark: | American Philosophical Society (Mss.B.D25.90) |
Letter no: | DCP-LETT-1287 |
To Charles Lyell [8 March 1850]
Summary
Comments on CL’s Anniversary address [Q. J. Geol. Soc. Lond. 6 (1850): xxvii–lxvi]. Notes CL’s criticism of R. I. Murchison’s catastrophism.
Asks whether there are Lower Cretaceous beds in Scandinavia. Thinks Leopold von Buch must have neglected them.
Author: | Charles Robert Darwin |
Addressee: | Charles Lyell, 1st baronet |
Date: | [8 Mar 1850] |
Classmark: | American Philosophical Society (Mss.B.D25.92) |
Letter no: | DCP-LETT-1308 |
To Charles Lyell [8 June 1850]
Summary
Discusses depths at which ripple-marks appear on sea-floor.
Personal and social comment.
Mentions receiving Agassiz’s Lake Superior [1850].
Author: | Charles Robert Darwin |
Addressee: | Charles Lyell, 1st baronet |
Date: | [8 June 1850] |
Classmark: | American Philosophical Society (Mss.B.D25.94) |
Letter no: | DCP-LETT-1337 |