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To Daniel Mackintosh   13 November 1880

Summary

Comments on DM’s ["The Moel-Tryfan shelly deposits", Q. J. Geol. Soc. Lond. 37 (1881): 351–69].

Comments on cause of earthquakes.

Believes formation of ice lowered level of sea.

Author:  Charles Robert Darwin
Addressee:  Daniel Mackintosh
Date:  13 Nov 1880
Classmark:  DAR 146: 334
Letter no:  DCP-LETT-12812

To Daniel Mackintosh   21 December 1880

Summary

The recipient is thanked for his "interesting letter".

CD sends an article received from [James Geikie?]. "You will see that it is important to know whether the laminae of slate have ever been bent up-hill."

Author:  Charles Robert Darwin
Addressee:  Daniel Mackintosh
Date:  21 Dec 1880
Classmark:  Christie’s, New York (dealers) (9 June 1999)
Letter no:  DCP-LETT-12930F
Document type
letter (2)
Author
Darwin, C. R.disabled_by_default
Addressee
Correspondent
Darwin, C. R.disabled_by_default
Mackintosh, Danieldisabled_by_default