Summary

Comments on Hermann Crüger’s paper, sent by CD, on fertilisation of orchids [J. Linn. Soc. Lond. (Bot.) 8 (1865): 127–35].

Observations on dichogamy in grasses (wheat, rye, barley).

Has not yet read CD’s reply to his article on Pangenesis [Collected papers 2: 158–60].

Summary

Asks JDH to consult colleagues learned in physiology for answer to query: when a large piece of bark is removed from a tree, does the bark ever regrow in isolated points [separate] from the growing margin of the surrounding bark? Query bears on Pangenesis and on power of repair in plants.

Summary

Glad to know about C.B.

Thinks better of Nature than JDH does.

Likes Academy.

Is reading Anton Kerner on Tubocytisus [in Die Abhängigkeit der Pflanzen von Klima und Boden (1869)].

The genealogical tree reveals the very steps of the formation of the species.

Mlle Royer has brought out a third edition of her translation of the Origin without informing CD, so corrections to fourth and fifth English editions are lost. Has arranged for a new translator of the fifth English edition.

Summary

Cautions FD about fluid in labellum of Coryanthes.

T. H. Farrer is enthusiastic about FD’s papers.

Believes humming-birds fertilise many American flowers.

Mentions his reply to FD’s criticisms ["Pangenesis: Mr Darwin’s reply to Professor Delpino", Sci. Opin. 2 (1869): 426; Collected papers 2: 158–60].

Suggests that FD study fertilisation of Gramineae.

Summary

Replies to F. Delpino’s criticisms of Pangenesis [Sci. Opin. 2 (1869): 365–7, 391–3, 407–8], especially concerning the difficulty of explaining the regrowth of amputated organs.

Summary

Thanks LA for information on sexual differences in the coloration of Amazonian fish. CD was anxious to know how the sexes differed because they are unusual in that the male has the largest share in looking after ova and young.

Summary

Thanks FD for his three publications.

CD is pleased that FD has discussed Pangenesis, although he does not favour the hypothesis. Will seek English publisher.

Summary

No paradox that unimportant characters are important systematically. This view removes heavy burden from CD’s shoulders. Relief that JDH does not object.

Summary

Can WDF recall the sex of the deaf white cats.

Summary

Carlyle hoped CD had not been annoyed by that forged letter, which was the reverse of his opinion. [Enclosed is a published extract, said to be taken from a Thomas Carlyle letter, which denies CD’s intellect and regrets his influence.]

Summary

The cat exhibition might provide information on unusual breeds of cats and their inheritance.

Expresses interest in deafness of white, blue-eyed cats.

Summary

Transformism explains rudimentary organs, and teratology, which are otherwise inexplicable.

Looking forward to publication of Descent

and CD’s expected book on "Variation in nature" [see Variation 1: 4].

Summary

Discusses sleep movements of Porlieria.

Has read an abstract of Julius Wiesner on heliotropism and geotropism ["Die heliotropischen Erscheinungen im Pflanzenreiche", Anz. Kais. Akad. Wiss. Wien 15 (1878): 137–40] which seems important but is puzzling.

Gives details of his observations on climbing plants with reference to comments by Julius Sachs.

Summary

Sends a translation of two sentences [on floral structure] as requested by Henrietta Darwin.

Summary

CD welcomes the prospect of the Philosophical Club of the Royal Society as means for seeing old acquaintances and making new ones. Will try to go up to London regularly.

Admits that the warning from JDH and Asa Gray (that more harm than good will come from combat over the species issue) makes him feel "deuced uncomfortable".

Reflects upon the complexity of Agassiz; how singular that a man of his eminence and immense knowledge "should write such wonderful stuff & bosh".

Summary

The Zoological Garden has only one old adult male of Limulus. When there were females, eggs were never observed.

Encloses a separate letter [formerly 7071] about AD’s scheme [for a zoological station].

Suggests AD be cautious [in his work]. "Caution is almost the soul of science."

Summary

FM much gratified by the appearance of Für Darwin translation.

Discusses dimorphism in Rubiaceae.

Summary

Thanks CD for testimonial.

Summary

Encloses a testimonial letter for J. D. Hooker [see 907]. If WJH thinks the letter could be improved CD will alter it. Feels it a disgrace that a professor should be appointed by men "who never heard of Humboldt & Brown".

Summary

Alarmed that CD did not see what WED saw in Corydalis lutea. Has found buckbean in the New Forest. Will get seeds of Corydalis claviculata.