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To Oswald Heer   28 February 1877

Summary

Thanks for work on Fossil arctic flora.

Author:  Charles Robert Darwin
Addressee:  Oswald Heer
Date:  28 Feb 1877
Classmark:  Landesarchiv des Kantons Glarus, Switzerland (Bestand Oswald Heer (1809–83) LAGL PA 22.A 1:14)
Letter no:  DCP-LETT-10872F

To Oswald Heer?   20 April [1861?]

Summary

Thanks for correspondent’s Untersuchungen [? Über das Klima und die Vegetationsverhältnisse des Tertiärlandes (1860)]. CD has always considered subject interesting and important.

Author:  Charles Robert Darwin
Addressee:  Oswald Heer
Date:  20 Apr [1861?]
Classmark:  Catherine Barnes (dealer) (2002)
Letter no:  DCP-LETT-2765

To Oswald Heer   4 August [1872–4]

Summary

Thanks OH for two memoirs on the fossil flora of Bear Island and Spitzbergen [K. Svensk. Vetensk. Akad. Handl. 8 (1869) no. 7; 9 (1870) no. 5].

Author:  Charles Robert Darwin
Addressee:  Oswald Heer
Date:  4 Aug [1872-4]
Classmark:  Zentralbibliothek Zürich (Nachlass Oswald Heer 213.2)
Letter no:  DCP-LETT-8454

To Oswald Heer   8 March [1875]

Summary

Thanks OH for his book [see 9876]; agrees that the sudden appearance of many dicotyledons in the Upper Chalk is a perplexing phenomenon for the evolutionist.

Author:  Charles Robert Darwin
Addressee:  Oswald Heer
Date:  8 Mar [1875]
Classmark:  Zentralbibliothek Zürich (Nachlass Oswald Heer 213.2)
Letter no:  DCP-LETT-9881
Document type
letter (4)
Author
Darwin, C. R.disabled_by_default
Addressee
Correspondent
Date
1861 (1)
1872 (1)
1875 (1)
1877 (1)