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Saporta, Gaston de in author 
1870-1879::1876 in date 
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From:
Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
To:
Charles Robert Darwin
Date:
2 Sept 1876
Source of text:
DAR 177: 33
Summary:

Claims to have proved the great antiquity of several plant races. But this does not contradict the tendency to vary. Insists that heredity can make permanent varieties of sufficient duration to occur as fossils.

Contributor:
Darwin Correspondence Project