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Darwin, C. R. in correspondent 
Orbigny, Alcide d’ in correspondent 
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From:
Alcide Charles Victor Dessalines (Alcide) d’Orbigny
To:
Charles Robert Darwin
Date:
14 Feb 1845
Source of text:
DAR 43.1: 62–5
Summary:

Agrees that CD’s fossil shells do not differ from those ADd’O saw in South America. Apparent differences due to errors by G. B. Sowerby. Collection magnificent; recommends special publication. Enabled ADd’O to correct error in dating of sandstone of Concepción. Lists geological periods represented in collection from Jurassic to Diluvian. Collection includes unusual group of crepidules.

Contributor:
Darwin Correspondence Project
From:
Alcide Charles Victor Dessalines (Alcide) d’Orbigny
To:
Charles Robert Darwin
Date:
[14 Feb 1845?]
Source of text:
DAR 43.1: 68–89
Summary:

Identifications of CD’s fossil shells. New species marked; many described previously by ADd’O.

Contributor:
Darwin Correspondence Project
From:
Alcide Charles Victor Dessalines (Alcide) d’Orbigny
To:
Charles Robert Darwin
Date:
31 Jan 1846
Source of text:
DAR 39.2: 128–9, DAR 43.1: 66–7
Summary:

Sends identifications of CD’s Bahia Blanca fossil shells [see 830].

Contributor:
Darwin Correspondence Project
From:
Alcide Charles Victor Dessalines (Alcide) d’Orbigny
To:
Charles Robert Darwin
Date:
[June – July 1846]
Source of text:
Quarterly Journal of the Geological Society of London (Part 2) 2 1846: 59
Summary:

ACVDdO asks CD to assist him in finding correspondents willing to provide British fossil shells for his proposed work, Paléontologie universelle, in exchange for parts of ACVDdO’s palaeontological works.

Contributor:
Darwin Correspondence Project