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To Christian Gottfried Ehrenberg   18 November [1869]1

Down. | Beckenham | Kent. S.E.

Nov 18.

Dear Sir

I beg leave to thank you for the honour which you have done me in sending me your fine Memoir on the Bacillariæ of Mexico.2 With my best thanks & the most sincere respect

I beg leave to remain | yours truly obliged | Charles Darwin

LS

1
The year is established by the publication date of Ehrenberg 1869 (see n. 2, below).
2
The reference is to Uber mächtige Gebirgs-Schichten vorherrschend aus mikroskopischen Bacillarien unter und bei der Stadt Mexiko (Ehrenberg 1869).

Manuscript Alterations and Comments

0.1 Beckenham] before del ‘Bromley.’

Please cite as “DCP-LETT-6996,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-6996