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From Ernst Pfitzer 19 June 1871
Summary
Sends publication [unspecified].
Notes adaptive mechanism in epiphytes.
| Author: | Ernst Hugo Heinrich (Ernst) Pfitzer |
| Addressee: | Charles Robert Darwin |
| Date: | 19 June 1871 |
| Classmark: | DAR 174: 41 |
| Letter no: | DCP-LETT-7825 |
From T. H. Farrer 19 June 1871
Summary
Observations on orchids. Ophrys apifera; confirms CD’s observation on pollinia. The nesting of ducks in trees is an example of change of instinct and habit.
| Author: | Thomas Henry Farrer, 1st baronet and 1st Baron Farrer |
| Addressee: | Charles Robert Darwin |
| Date: | 19 June 1871 |
| Classmark: | DAR 164: 69–70 |
| Letter no: | DCP-LETT-7826 |
Author
| Farrer, T. H. | (1) |
| Pfitzer, Ernst | (1) |
Correspondent
| Darwin, C. R. | (2) |
| Farrer, T. H. | (1) |
| Pfitzer, Ernst | (1) |
