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From:
Charles Robert Darwin
To:
Deane Parker Pennethorne
Date:
22 May [1868]
Source of text:
American Philosophical Society (Mss.B.D25.350)
Summary:

Comments on DP’s paper on man ["Transmutation of man according to the Darwinian theory" (n.d.)].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Bernhard Tegetmeier
Date:
22 May [1868]
Source of text:
Archives of the New York Botanical Garden (Charles Finney Cox Collection)
Summary:

Inquires about plumage of poultry breeds.

Contributor:
Darwin Correspondence Project
From:
John Harward
To:
Charles Robert Darwin
Date:
22 May 1868
Source of text:
DAR 166: 118
Summary:

Will obtain information on sheep.

Contributor:
Darwin Correspondence Project
From:
George Biddell Airy
To:
Sir John Herschel
Date:
[22 May 1868]
Source of text:
TxU:H/M-0644.2
Summary:

More on musical scales [see GA's 1868-4-3]; GA here proposes the use of hyperbolic logarithms to help establish the scales.

Contributor:
John Herschel Project