Summary

Wife’s health better.

Visited Duke of Argyll.

Thanks CD for Cruciferae diagram; will ponder it.

Staggered by complexity of Welwitschia.

Summary

Wife’s health improved by trip.

Heer’s collections convince JDH that Miocene vegetation was Himalayan, not American, as Heer supposed.

Zurich promises to be a good natural history school.

Review of Natural History Review in Parthenon [1 (1862): 373–5].

Summary

Has read CD’s long letter on Lythrum and agrees with it. Is examining the pollen of the different types.

Summary

Asks for information concerning heterostyled and dioecious plants.

Summary

Can CCB get Lythrum hyssopifolium seeds?

Hottonia splendidly dimorphic.

Summary

A German scholar says JDH first applied natural selection to replacement of races of men, the ruder races of Polynesians yielding to civilised Europeans. CD cannot remember reading this.

Warns JDH to take care Welwitschia does not turn into a case of barnacles and consume years instead of months.

In what months do flowers appear in Acropera loddigesia and A. luteola? CD is alarmed by John Scott’s observations on them, which differ from his own. "I am very uneasy."

Summary

Thanks for opinion on Drosera. After working for a time on a subject he is absolutely incapable of judging its value.

Has found a case in Lythrum of a necessary triple alliance between three hermaphrodites; the strangest case of propagation recorded among plants or animals.

Asks for L. thymifolia to see how a trimorphic form passes or graduates into dimorphic.

Questions JDH on Linum perenne.

Has found 33 hybrids in one field between Verbascum thapsus and V. lychnitis. The perfect series of varieties would have justified running the species together, but every one of the intermediate forms is sterile.

Summary

Stupefied by CD’s five forms of Lythrum.

Asa Gray busy with Cypripedium. JDH offers some to CD if he wants to challenge Gray.

J. W. Dawson’s review of JDH’s paper on Arctic plants.

Louis Lucien Bonaparte’s views on Basque and Finnish language [Langue basque et langues finnoises (1862)] suggest to JDH that Basques are Finns left behind after the glacial period, like the Arctic plants!

Summary

Sends orchids.

Summary

Lythrum. Wants to examine fresh flowers of Lythraceae. Lythrum salicaria has interested him very much.

Microscopes.

Asks whether JDH can think of plants that have different coloured anthers or pollen in same flowers (as in Melastoma) or on same and in different plants as in Lythrum. Would be a safe guide to dimorphism.

Observation of action of pollen in Linum grandiflorum.

Summary

Returns Asa Gray’s letter. Disappointed with Gray. Comments on America. British–American relations.

Summary

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.

Summary

Remembers JDH’s encouragement when he was "utterly weary of life".

Marvellous about European forms in Fernando Po.

C. V. Naudin will publish a book on hybridity ["Nouvelles recherches sur l’hybridité dans les végétaux", Nouv. Arch. Mus. Hist. Nat. Paris 1 (1865): 25–176; part also in Ann. Sci. Nat. (Bot.) (1863)].

CD fears Naudin has underestimated distribution of pollen by insects.

Melastomatous plants are ready for his work on meaning of two sets of anthers.

Very curious about Masdevallia.

George [Darwin] observing orchids.

Adaptation of Herminium beats almost every other orchid.

Summary

Superb, but exaggerated, review [of Orchids, by M. J. Berkeley] in London Review [& wkly J. Polit. 4 (1862): 553–4]. Asa Gray thinks almost as highly. "I have not been a fool, as I thought I was, to publish." The Athenæum review will hinder sales greatly.

Summary

Sends two flowers of Vanilla and two Melastomataceae.

Has worked on Cameroon list ["Mountain flowering plants and ferns of the Cameroons", in Burton, Abeokuta and the Cameroons Mountains (1863) 2: 270–7]

and Genera plantarum.

Summary

Thinks JDH is a bit hard on Asa Gray.

Bates’s letter is that of a true thinker. Asks to see JDH’s to Bates. Point raised in it is most difficult. "There is one clear line of distinction; – when many parts of structure as in woodpecker show distinct adaptation to external bodies, it is preposterous to attribute them to effect of climate etc. – but when a single point, alone, as a hooked seed, it is conceivable that it may thus have arisen." His study of orchids shows nearly all parts of the flower co-adapted for fertilisation by insects and therefore the result of natural selection. Mormodes ignea "is a prodigy of adaptation".

Summary

Sends paper on affinities of Plagiaulax ["On Plagiaulax from the Purbeck beds", Q. J. Geol. Soc. Lond. 18 (1862): 348–69].

Summary

Reports on a bird, offspring of a male mule between a canary and greenfinch, and a hen canary.

Family news.

Summary

M. J. Berkeley wrote London Review & Wkly J. Polit. article.

CD is "out of sight the best physiological observer and experimenter that Botany ever saw".

Laments how much he [JDH] missed when doing the Listera ["Functions and structure of the rostellum of Listera ovata", Philos. Trans. R. Soc. Lond. 144 (1854): 259–64].

Illness of wife and father.

"More plants from Fernando Po and more European".

Summary

Comments on HF’s paper on Plagiaulax from the Purbeck beds. Paper "dreadfully severe" on Owen.

"I am worse than ever in bearing any excitement."

Glad HF attacked Australian Mastodon. Never did believe in him.

Mentions Primula paper [Collected papers 2: 45–63].