Pollination and floral structure of Lathyrus. Asks where bees bite through the flowers.
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Pollination and floral structure of Lathyrus. Asks where bees bite through the flowers.
Has been investigating nutational movements of climbing plants; comments on the opinions of Julius von Wiesner and Julius Sachs. Remarks on the sleep movements of certain plants and the mechanism of tendril curvature. Is experimenting with Porlieria.
Has visited K. G. Semper’s laboratory.
Notes Julius Sachs’s opinion on the heliotropism of moulds: he can see no use in the response.
C. E. Stahl is working on swarm spores which can be made both helio- and apheliotropic.
Sachs has told him that some ferns sleep, and he suspects that some grasses may move.
Sachs also feels they may be working at bloom from a wrong point of view and suggests leaves may need to keep dry in order to keep their stomata open.
Sends proofs of Variation [2d ed.] for FD to look over.
CD has just had an interview with Edward Frankland, who "almost laughs" at FD’s idea of getting potash and soda out of the soil by treating it with sulphuric acid. Asks FD to send him a soil sample to give to Frankland. Sends enclosures giving address and labels for soil samples.
Expresses his pride in FD, whose article ["On the structure of the snail’s heart", J. Anat. Physiol. 10 (1876): 506–10] was highly praised by G. H. Lewes.
Lewes has also been quoting FD’s letter in Nature [13 (1876): 384–5] on pycrotoxine in relation to the vivisection controversy.
Was introduced to James Sully, author of the article in Mind on Wilhelm Wundt ["Physiological psychology in Germany", 1 (1876): 20–43]
and Sensation and intuition (1874) [see 10320], by "Mrs Lewes" (George Eliot).
Discusses FD’s observations on the protrusion of protoplasmic masses by cells of the teasel. Suggests analogy with amoeba. "I would work at this subject if I were you, to the point of death."
Comments on FD’s discovery – "if it so proves". It will be important to see whether the protoplasm oozes through the cell-walls [of Dipsacus] or whether it can be withdrawn.
Looks to FD’s "grand discovery" as almost certain. Suggests observations.
Forwards chapter [of Orchids (1877)] for correction.
Sadness at the death of Amy.
Suggests German works worth translating.
Is glad FD is keeping busy; he has worked excellently on proof-sheets [of Orchids (1877)].
FD’s corrections for Orchids [1877] are all very good and useful.
Sends last chapter of Orchids [1877] for revision.
Has some articles that might interest FD.
Has invited Ferdinand Cohn and his wife to Down but hopes they will not come.
Sends [unidentified] volume for FD.
Ferdinand Cohn is coming to Down.
Thanks FD for corrections [to Orchids (1877)].
Thinks Johann von Fischer’s paper on monkeys’ rumps [Der Zoologische Garten 17 (1876): 116–27, 174–9] worth translating, and he intends to write a letter on it to Nature [Collected papers 2: 207–11].
Sends an article for FD.
Is glad he is able to work on his teasel paper [Proc. R. Soc. Lond. 26 (1878): 4–8]; suggests some observations FD could make.
Asks for reference to an article on a mandrill.
Has seen notice on Empetrum but cannot understand how leaves in bud could act as fly-catchers.
Asks FD to write on his behalf and say that he is unwilling to join a deputation [on vivisection] and that he believes in the need to protect physiology as well as lower animals.
Asks FD to mollify Daniel Oliver and assure him that CD asks "only for what I wd. give my life’s blood for".