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Interested to hear about the peas.
Discusses feather as case of evolutionary atavism.
Will soon publish on siliceous sponges
and the skin of caterpillars.
Paralysis of the nervous system of Dionaea. Uses of tails of mice.
Thanks for the diploma conferring on him an honorary doctorate of medicine from Leiden University.
Intends to set up a biological periodical called “Darwinia” to spread and popularise Darwin’s theories; hopes CD may contribute a few words to the opening issue.
Returns corrected proofs [of Insectivorous plants].
CD’s observations on the power of movement and transmission of motor impulses in plants. If RLT succeeds with the tails of mice, it will be "a beautiful little discovery"; CD will enjoy it the more "because some German sneered at natural selection and instanced the tail of the mouse" [see 10013].
Playfair "disgusted at our pronunciamentos against the Bill". Burdon Sanderson and William Sharpey agreed to it. THH feels he must serve on Vivisection Commission.
May publish a lecture on insectivorous plants and would like to dedicate it to CD.
Wishes to become an F.R.S.
Comments on Fritz Schultze, Kant und Darwin [1875].
Describes recent activities.
Partial letter comprised of a post script only, the rest of the letter is not extant in the archive. The date has been added in pencil in a hand not that of the original author, Joseph Dalton Hooker. There is no salutation but based on the letters which make up the rest of the volume the recipient is presumed to be Asa Gray. JDH asks Gray if he has any spare West African plants from the set sent to him by RBG Kew. Friedrich Welwitsch claims not to have received a set & it is possible they were sent to Gray in error, though more likely they were lost in Welwitsch's travels between London & Portugal. In turn Welwitsch has not shared his own herbarium, which is needed to complete the FLORA OF TROPICAL AFRICA.
Is very grateful for the gift of a fender-stool. Will send her a copy of Insectivorous plants.
Asks questions about earthworms.
Has found that H. G. Bronn in the chapter appended to his translation of Origin cited ears and tail of mice as facts opposed to natural selection. Suggests RLT examine hairs of tails of mice for possible nerves.
CD is convinced by the conclusions of Malthus.
Comments on his book [Kant und Darwin: ein Beitrag zur Geschichte der Entwicklungslehre (1875)].
JDH discusses arrangements for securing Thiselton-Dyer's pay for his new position [as Assistant Director of RBG Kew]. There has been some delay on Lord Henrys'[?] part. JDH is anxious for Thiselton-Dyer to start work & congratulates him on getting the job, which he hopes has also pleased Thiselton-Dyer's family.
Has separated out a pepsin-like substance from the secretion of Drosera, which he proposes to call "Droserin".
Intends sending a paper containing some of his histological work [see "Freezing process for section-cutting; … staining and mounting sections", J. Anat. & Physiol. 9 (1875): 249–58].