Summary

Observations on Platanthera.

Possibility of trimorphism in Mertensia.

Summary

Gives J. T. Rothrock’s observations on the structure and fertility of the two forms of Houstonia. Mentions his own observations on Rhexia virginica and Gymnadenia tridentata.

Summary

Variability of naturalised plants.

Distribution of Arctic/alpine plant species.

Limits to the northern range of plants.

Summary

Will try to get Ipomoea and Megarrhiza seeds for CD.

Summary

CD’s book taking on famously. AG’s review in Nation [see 5921] and preface to American edition.

Summary

Has been ill with pleurisy.

Sends more corrections and additions for American edition of Origin.

Summary

Geographical distribution. "Close" species. Hopes AG will write an essay on species.

Summary

Germination of Megarrhiza. AG’s observations at variance with CD’s.

Summary

Discusses dimorphic plants and the occurrence of "precocious fertilisation" in the bud.

Gives some comments on design in nature in the light of the translator’s commentary in the French edition of the Origin.

Reports the recent events of the Civil War.

[Note on verso of envelope:] Utricularia vulgaris is "about as neatly contrived for cross-fertilisation by insects as almost any orchid".

Summary

Gives reference to his observations on tendrils [Proc. Am. Acad. Arts & Sci. 4: 98–9].

Notes cases in which the pollen of the fertilising plant affects the form of the fruit of the fertilised plant, e.g., gourds and maize.

Discusses the Civil War and the attitudes of the English press.

Summary

Encloses stamps for Leonard Darwin.

Summary

Agassiz denounces Origin as "atheistical";

AG is currently reviewing it [in Am. J. Sci. 2d ser. 29 (1860): 153–84].

Jeffries Wyman praises it, though not a convert.

Summary

Congratulates AG on the "grand news of Richmond".

Still interested in dimorphism and would welcome new cases.

Working on Variation

and correcting proofs of Climbing plants.

Would like seed of AG’s dimorphic Plantago.

Cannot understand how the wind could fertilise reciprocally dimorphic flowers.

Summary

Thanks for Sarracenia, which is as wonderful as any orchid.

Asks AG to observe Pinguicula.

Has read AG’s semi-theological review [Nation 18 (1874): 348–51] with interest

and has obtained the book [C. Hodge, What is Darwinism? (1874)].

Summary

CD is deeply pleased by AG’s article on him in Nature [10 (1874): 79–81].

Is preparing book on "Drosera and Co." for the printers. Reports observations on digestion in Drosera and Pinguicula.

Summary

Has been reading J. D. Morell’s new book on psychology [An introduction to mental philosophy, on the inductive method (1862)].

Progress of the Civil War.

Summary

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.

Summary

Encloses maize seeds.

Has heard of a butterfly with pollinia of Platanthera stuck to it.

Comments on AG’s notes ["Dimorphism in the genitalia of flowers", Am. J. Sci. 2d ser. 34 (1862): 149–50].

"Precocious fertilisation".

Summary

Germination of Megarrhiza.

Summary

Roots arising from stems and shoots of brambles.