From:
Charles Robert Darwin
To:
Asa Gray
Date:
14 July [1856]
Source of text:
Archives of the New York Botanical Garden (Charles Finney Cox Collection)
Summary:
Asks whether Allegheny Mountains are sufficiently continuous so that plants could travel from north to south along them.
Hopes AG’s work on geographical distribution is progressing, as he has questions on plants common to Europe which do not range up to Arctic.
Are intermediate varieties less numerous in individuals than the varieties they connect?
Contributor:
Darwin Correspondence Project