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To Otto Staudinger 20 May 1868
Summary
Thanks for information on sex ratios of Lepidoptera.
Agrees that entomologists have best means of proving derivation of species.
Author: | Charles Robert Darwin |
Addressee: | Otto Staudinger |
Date: | 20 May 1868 |
Classmark: | DAR 147: 492 |
Letter no: | DCP-LETT-6192 |