Notes on drops of nectar on sepals of cypripedium.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Notes on drops of nectar on sepals of cypripedium.
Sends Asa Gray letter to JDH. Gray’s "Coolness about England and U. S. beats anything".
John Scott’s difficulties at Edinburgh Botanic Garden.
JS’s paper on Primula crossing experiments.
Sends MS note about closing of stigma in orchids being dependent on affinity of pollen and independent of protusion of pollen-tubes.
Herbert Spencer’s work disappointing – "all words & generalities".
CD describes first observation of gyratory motion of tendrils: explains its adaptive function is to find objects to hold on to.