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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.
Has drawn all three forms of primroses CD sent "with same result". Has found no pink variety with middle style.
CD wants WED to make some measurements on mid-styled [Primula sinensis] plants.
Sends drawings of the pollen from Chinese Primula plants with styles and pistils of different lengths; observations on sizes and condition of their pollen.
Instructions concerning the payment of the principal and interest of the mortgage to Mr Childe.
Observations on [length of style and length of filament and stigmas of] Pulmonaria.
Describes difference between Pulmonaria flowers; wishes to know whether it is general.
CD is right about variability [of Pulmonaria]. Encloses observations and diagrams of additional plants.
[Outline sketches of pollen from long- and short-styled yellow cowslips and from red cowslip, magnified 350x.]
Writes of dimorphic plants.
Thanks WED for measuring cowslip pollen. Sends dimorphic flowers.
Experiment instructions.
Diagrams of short- and long-styled Pulmonaria under magnification.
Observations on style length of 150 flowers of Pulmonaria [angustifolia]. [See Forms of flowers, p. 105.]
Instructions on measuring pollen of dimorphic plants.
Discusses WED’s observations on polymorphic flowers.
CD says Meneanthes is now in flower.
CD would like to see Rhamnus, as an American species is dimorphic.
Sends red cowslip pollen to be measured.
Sends Pulmonaria anthers, with measurements of styles and pollen counts.
Sends specimens of Menyanthes with observations and drawings [see Forms of flowers, p. 115].
Mentions WED’s extraordinary discovery of some pollen-grains of different sizes. The observations must be followed up.
