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From:
Ferdinand von Mueller
To:
James McCulloch
Date:
16 October 1864
Source of text:
J64/10587, unit 16, VPRS 3991/P inward registered correspondence, VA 475 Chief Secretary's Department, Public Record Office, Victoria
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project
From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[16? Oct 1864]
Source of text:
DAR 101: 246, 246a
Summary:

Morphological differences only partly define species; physiological differences, e.g., incompatibility results in Primula, are far more interesting.

T. Thomson’s review of Agardh’s muddled book ["Agardh’s classification of plants", Nat. Hist. Rev. (1864): 536–51].

Contributor:
Darwin Correspondence Project
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