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Denny, Henry in correspondent 
American Philosophical Society in repository 
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From:
Charles Robert Darwin
To:
Henry Denny
Date:
20 Jan [1844]
Source of text:
American Philosophical Society (Mss.B.D25.37)
Summary:

Discusses sending HD lice specimens. Asks him to check with G. R. Waterhouse.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Henry Denny
Date:
3 June [1844]
Source of text:
American Philosophical Society (Mss.B.D25.35)
Summary:

Discusses intestinal worms among humans.

Comments on origin of human races.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Henry Denny
Date:
12 Aug [1844]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

Can hardly believe he made a mistake in specimens sent to HD. Recopies numbers in case he transposed them. [Has to do with lice taken from a specimen of aperea and put into spirits during Beagle voyage.]

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Henry Denny
Date:
23 Mar [1865]
Source of text:
American Philosophical Society (Mss.B.D25.120)
Summary:

Interested by HD’s information on aperea; CD had concluded that it was not the progenitor of domestic guinea-pigs.

Is unsure what HD means by "stock-dove"; properly this is Columba oenas and the domestic pigeon is C. livia.

Suggests that the Zoological Society might arrange for some specimens [unspecified] to be supplied from the Gardens.

Contributor:
Darwin Correspondence Project