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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.
Suggests sending plant specimens. Asks about visit of Emma and the boys.
Asks HCW’s help with his experiments on Lythrum salicaria, for which he needs flowers of the rare Lythrum hyssopifolia.
Describes insects caught while visiting Lythrum.
Looked for Hottonia but with little success.
WED has been collecting Lythrum plants. Numerical proportions of the three forms.
Bee with adhering orchid pollinia lent to Charles Daubeny. Pollen-masses shaken off but if CD still interested he is welcome to specimen.
Sends specimens of the three forms of Lythrum. Remarks on the numerical proportions of different forms.
Discusses Lythrum, "a really wonderful case"; asks WED to make observations and collect specimens; sends a diagram which shows what crosses he believes are fertile.
Would like George to watch bees visiting the flowers; wants some pods from different forms to compare shapes and count seeds.
Gives J. T. Rothrock’s observations on the structure and fertility of the two forms of Houstonia. Mentions his own observations on Rhexia virginica and Gymnadenia tridentata.
Finds many beautiful Epipactis specimens.
Proportions of different forms of Lythrum.
Has read CD’s long letter on Lythrum and agrees with it. Is examining the pollen of the different types.
Muscular fibres of whale no larger than those of bee – evidence of a community of origin.
Problem of the abortive wings of ostrich in relation to conditions of their survival.
Believes Lythrum is trimorphic. Asks AG for seeds of plants he suspects are polymorphic.
Breeding cells of Ligurian bee are larger than those of common bee. Thanks CD for comb.
WBT’s "too kind and flattering" article on Orchids.
Notes and observations on orchids.
Family illnesses.
On disposition of wild honeycomb gift.
Discounts the difficulty presented by ostrich wings.
Observations on Welwitschia.
Jamieson has revisited Glen Roy and confirmed his theory of glacier lakes.
A. G. More considers CD the most profound of reasoners.