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Darwin, C. R. in correspondent 
Spengel, J. W. in correspondent 
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From:
Johann Wilhelm Spengel
To:
Charles Robert Darwin
Date:
10 May 1871
Source of text:
DAR 177: 235
Summary:

Thanks CD for his letter referring to JWS’s bibliographical paper ["Darwinian bibliography", Z. Ethnol. 3 (1871): 56–67]. Will be glad to inform CD of any additions to the list and would be grateful for information on future publications.

Contributor:
Darwin Correspondence Project
From:
Johann Wilhelm Spengel
To:
Charles Robert Darwin
Date:
4 Nov 1871
Source of text:
DAR 177: 236
Summary:

Sends CD additions to his bibliographical list [missing].

Reports observations indicating that chimpanzees show compassion.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Wilhelm Spengel
Date:
27 Nov [1874]
Source of text:
Sächsische Landesbibliothek (SLUB) (Mscr. Dresd. s 762)
Summary:

Thanks for JWS’s updatings to his Darwinian bibliography and regrets he is a poor German scholar.

Contributor:
Darwin Correspondence Project