Thanks AG for praise of Orchids and his notes on several American species of orchid. Comments on AG’s observations.

Is experimenting [on dimorphism] with Rhexia and Melastoma.

Asks AG’s opinion of a paper by Thomas Meehan ["On the uniformity of relative characters between allied species of European and American trees", Proc. Philadelphia Acad. Nat. Sci. (1862): 10–13] which is the best case of the apparently direct action of the conditions of life CD has seen.

Requests postage stamp for his ill son [Leonard].

Thanks AG for observations on Cypripedium and gives recent observations of his own.

Arethusa is very pretty; structure seems like that of Vanilla.

Finds the little (so-called imperfect) flowers of Viola and Oxalis curious: the pollen-grains emit their tubes whilst within the anthers, and they travel in straight lines right to the stigmas.

Sympathises with events in the U. S.

Reports on French translation of Origin by Mlle C. Royer, "one of the cleverest & oddest women in Europe".

Alphonse de Candolle says he wants direct proof of natural selection; "he will have to wait a long time for that".

Thanks for notes on Cypripedium and Platanthera hookeri, which is really beautiful and quite a new case.

His son, George, has been observing the insect fertilisation of orchids.

CD has been crossing peloric flowers of Pelargonium, but doubts he will get good results with respect to sterility of hybrids.

Rhexia glandulosa does not appear to be dimorphic. Lythrum is trimorphic.

Adaptations of orchid flowers. Believes the structure of all irregular flowers is adaptation to insect fertilisation.

Linum grandiflorum distinguishes its own pollen so that when placed on stigma of same flower the pollen-tube is not even exserted.

AG’s orchid observations are admirable.

Owen has lectured on birds’ descending from one form.

French criticism of CD’s Primula paper.

Only AG has seen that Orchids was "a ""flank movement"" on the enemy".

AG’s "capital" review of Orchids [Am. J. Sci. 2d ser. 34 (1862): 138–44].

Thinks there are three forms of Lythrum salicaria.

Discusses transport of seeds by sea.

Believes Lythrum is trimorphic. Asks AG for seeds of plants he suspects are polymorphic.

Emma and Leonard have scarlet fever.

Houstonia seems "a grand case"; J. T. Rothrock should publish his observations on the two pollens and the reciprocal action of two hermaphrodites.

Rhexia glandulosa offers nothing odd, but Heterocentron will turn out something marvellous like Lythrum.

Would like to know what AG thinks of last chapter of Orchids.

Glad AG will publish some separate notes on orchids ["Fertilization of orchids through the agency of insects", Am. J. Sci. 2d ser. 34 (1862): 420–9].

Trimorphism in Lythrum.

Bee behaviour.

Lythrum salicaria is coming out clear.

Would be glad of Nesaea seed.

Is disappointed with Melastoma, but is sure there is something curious to be made out.

His experiments with poisons on Drosera lead him to conclude that it possesses something analogous to nervous matter.

Comments on natural hybrids of Verbascum.

Deplores the Civil War and the feelings it has fostered in Britain.

Agrees Max Müller’s book [see 3752] is interesting but cannot see how it will further his "cause".

A book by J. W. Colenso [The Pentateuch and book of Joshua critically examined, pt 1 (1862)] has just appeared and will "make a noise".

Would like some observations made on Cypripedium.

Will not publish yet on Lythrum as he must make many more crosses; the mid-styled is fertile with half of its own stamens.

Would like to try a few experiments on tendrils.

Recommends H. W. Bates’s paper on butterflies of Amazonia ["Insect fauna of the Amazon valley", Trans. Linn. Soc. Lond. 23 (1862): 495–566].

Lyell’s book [Antiquity of man (1863)] is eagerly awaited.

Discusses AG’s article ["Dimorphism", Am. J. Sci. 2d ser. 34 (1862): 419–20]. Does not like the terms "dioecio-dimorphism" or "precocious fertilisation". Discusses the separation of sexes in plants; cannot doubt that hermaphroditism is the aboriginal state.

Discusses AG’s observations on orchids and his review of Orchids [Am. J. Sci. 2d ser. 34 (1862): 138–51].

Thanks AG for Cypripedium and Mitchella.

Plans to investigate pollination of Cypripedium.

Has finished Linum paper [Collected papers 2: 93–105].

Would welcome facts on "bud-variations".

Hears that Cinchona is dimorphic.

Comments on his own review of Bates’s butterfly paper [Collected papers 2: 87–92].

Thanks AG for information on Platanthera.

Has been wasting more time with Melastomataceae; can find no nectar in Monochaetum; is there any in Rhexia?

Hopes Lincoln’s "fiat against Slavery" will have some effect.

Recommends Lyell’s book [Antiquity of man (1863)].

Quotes praise of AG’s pamphlet [see 2938].

Comments on U. S. politics.

Discusses the meaning of C. K. Sprengel’s term "dichogamy". Dichogamous plants are functionally monoecious; Primula is functionally dioecious.

Reports Hermann Crüger’s observations of Cattleya and of bees pollinating Catasetum. Crüger will observe Melastomataceae.

Has built a hothouse.

Fears Amsinckia cannot be dimorphic.

Ill health slows his work on Variation.

Fears England and U. S. will drift into war; he and AG must "keep to Science".

Thanks for facts on Incas; regrets he has always avoided the case of man.

Has sent his Linum paper [Collected papers 2: 93–105].

Is it true that Ohio has legislated against marriage of cousins?

Can AG explain the invariable angles in phyllotaxy; are they the consequence of packing in the early bud?

Owen’s comments on heterogeny in the Athenæum [28 Mar 1863] have vexed W. B. Carpenter; CD has replied [Collected papers 2: 78–80].

Hopes AG will observe Gymnadenia; John Scott has been experimenting on its fertilisation.

Gives his observation on pollination of Cypripedium.

CD despairs when men like AG and Lyell consider themselves incapable of judging on change of species by descent.

Is confused over phyllotaxy.

Has been looking at Plantago lanceolata.

AG’s review of Alphonse de Candolle’s paper [Am. J. Sci. 2d ser. 35 (1863): 430–44] is excellent.

Does not AG consider that orchids oppose Oswald Heer’s view that species arise suddenly by monstrosities?

Infers that AG cannot explain the angles of phyllotaxy; has been looking at Carl Nägeli on the subject.

Reports Gaston de Saporta’s belief that natural selection will ultimately triumph in France.

Is working slowly at Variation.

Reports his observations on the imperfect flowers of Viola and Oxalis.

Thanks AG for references about phyllotaxy

and information on marriage laws.

Has been looking for dimorphism in Phlox and Euonymus.

Has observed the irritability of tendrils of Echinocystis with great interest. Was also struck by the rotating movements of the leading shoots, which he proposes to investigate.