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From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[15 or 22] Sept 1843
Source of text:
American Philosophical Society (Mss.B.D25.32)
Summary:

Mentions expected birth of child [Henrietta Emma].

BAAS meeting.

Comments on letters from G. R. Waterhouse and William Lonsdale.

Describes survival of apparently "fossil" seeds sent by W. Kemp.

Is at work on MS [of Volcanic islands].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[16 Dec 1843]
Source of text:
American Philosophical Society (Mss.B.D25.33)
Summary:

Description and defence of his view of the tosca in Banda Oriental, along the Rio Uruguay and at the Rio Negro, taking issue with A. D. d’Orbigny. Refers to the pumice in the Patagonian Territory. Two tables show the layered tosca formation along the Uruguay.

Contributor:
Darwin Correspondence Project