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Sends a list of 22 plants that grow at Hitcham and in the Azores and are, according to H. C. Watson, least likely to have been imported [by man]. Will pay the little girls of Hitcham liberally to collect the seeds for his experiments.
CD experiments: sowing seeds in fields; "breaking" seeds’ constitution with coloured light; plant hybridisation. Compiling works on hybridism.
Respect for W. B. Carpenter.
Note on "nectar secreting" to Gardeners’ Chronicle [Collected papers 1: 258–9].
CD has more specimens of Helix pomatia.
Thanks for Lepidoptera book.
Invites JL to dinner.
Visits Angelo Secchi at Rome observatory, where they are comparing information in Cape Results to their observations.
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Has read a paper, presumably by JDH, using the Madeiran flora to argue against Forbes’s doctrine.
JDH asked how far CD will go in attributing common descent; he intends to show "the facts & arguments for & against the common descent of species of same genus; & then show how far the same arguments tell for or against forms, more & more widely different".
Parcels sent to Down by coach may get lost.
Discusses how best to simulate the light at a particular point on the earth’s surface using coloured glass; considers sunlight as composed of three "principles", varying in proportion according to latitude, which affect germination, lignification, and floriation.
Congratulations to JL on finding musk-ox fossil.
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Would like an opinion on the question of attendance fees paid by students attending their lectures.
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Reports on observing hive-bees visiting the leaves of vetch and bean and sucking the minute drops of nectar secreted by the glands on the underside of the stipulae. This phenomenon proves wrong those botanists who believe nectar to be a special secretion for the sole purpose of luring insects to visit flowers and thus to aid in their fertilisation.
If AAG is no longer member of the Ray Society, CD would like to send copy of Living Cirripedia, vol. 2.
Geographical distribution. "Close" species. Hopes AG will write an essay on species.