Observations for CD on oxlips, which she finds never grow near cowslips or primroses.
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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.
Observations for CD on oxlips, which she finds never grow near cowslips or primroses.
Sends observations on seeds of Pulmonaria officinalis requested by CD.
Asks her to see whether the flowers or leaves of Erica massoni are noted as glutinous in the Botanical Magazine.
Inquires about the pods of peony: are they brilliantly coloured and do birds eat them?
Describes a pouting expression in a 3½–year-old child.
P.S. Information on earthworm activity on chalk downs, including two rough sketches for CD.
Aggressive behaviour of dogs and horses.
Expression in horses.
Crying in babies.
Asks her to observe whether her dog exposes his teeth when barking and to think of any facts about expression in her birds.
Worm-casts on a ridged hill.
Displays in turkeys.
Asks her to probe worm-holes on grassy slopes with a knitting needle to ascertain whether they come out at right angles to the slope or to the horizon.
Gives results of probing worm-holes with wire.
Thanks for observations on angles of worm-holes on slopes. William Darwin is observing at Stonehenge. She is worth her weight in gold.
Describes earthworm experiments. She has measured depth of mould in various locales, e.g., on ridges and furrows of an old ploughed field.
Quotes Botanical Magazine on Erica massoni. Its branches terminate in large umbels of flowers that are extremely viscous and entrap insects.
Sends further details on Pinguicula reference.
Sends specimens of Pinguicula with insects adhering. [See Insectivorous plants, p. 369.]
Sends reference on Pinguicula [for CD].
Their enumeration [of forms of Lythrum?] is invaluable. He will write later to explain what he is trying to prove about Lythrum through laborious crosses.
Asks for flowers of both forms of Hottonia to measure pollen and compare stigmas.
Sends some figures on long- and short-styled primroses for "Uncle Ch".