Observations on orchid self-sterility.

Wants information on characters that may have originated through sexual selection in lower animals.

Encloses queries on expression.

Thanks for facts on orchids.

Friedrich Hildebrand’s new book on fertilisation of plants [Die Geschlechten-Vertheilung bei den Pflanzen (1867)].

CD correcting proofs of Variation.

FM likes Ernst Haeckel’s book [Generelle Morphologie (1866)].

Self-sterility in orchids.

Growth differences in plants raised from self- and cross-fertilised seed.

Thanks for information on sexual differences.

Orchids; self-sterility and difficulty of getting seeds to germinate.

Dimorphism.

Has abstracted for insertion in his sterility chapter [Variation 2, ch. 18], FM’s observations of plant’s pollen being poisonous to itself.

Occurrence of mimetic plants.

Colouring of Planariae.

Queries about expressions in crying monkeys.

Has received letter from Hermann Müller on orchid fertilisation.

Variation to be published at end of month.

Dimorphism and self-sterility.

Seed dissemination in Adenanthera.

Sends Variation and would like to hear what FM thinks of Pangenesis.

Thanks for information on expression.

Dimorphic plants;

differences in seed production in cross- and self-fertilised plants.

Is working on sexual selection and is interested in any anomalous sex ratios in lower animals and any sex-related characters.

CD arranging for a translation of FM’s Für Darwin by W. S. Dallas.

Movement in plants.

Dimorphism.

Would welcome FM’s opinion of Pangenesis.

Is glad FM approves of a translation of Für Darwin.

Hopes FM will think well of Pangenesis.

Sexual differences in insect auditory and stridulating organs.

Read FM’s paper on Balanus with great interest ["On Balanus armatus", Ann. & Mag. Nat. Hist. 4th ser. 1 (1868): 393–412].

FM’s additions for English edition [1869] of Für Darwin.

Dimorphic plants.

Delay in translating Für Darwin.

Comments on plan to repeat CD’s experiments on illegitimate offspring.

FM’s observations on stridulation.

Translation of Für Darwin has been published [Facts and arguments for Darwin (1869)].

Discusses dimorphic plants, commenting on FM’s observations on Oxalis.

Is greatly interested in Eschscholzia, which seems somewhat more self-sterile in Brazil than in England.

Thinks FM’s grass is "most wonderful".

On English edition of Für Darwin; CD’s gratitude and admiration.

Reports reviews of Facts and arguments for Darwin [1869].

Is preparing for a French translation of Orchids.

The case of Abutilon which is sterile with some individuals is remarkable.

Has sent FM’s account of the monstrous Begonia to the Linnean Society.

Wants observations on a Papilio to see whether ticking noise is confined to one sex.

Experiments on self-sterility.

Will send copy of his orchid paper ["Fertilisation of orchids", Collected papers 2: 138–56].

Eschscholzia when self-fertilised, produced pods.

Role of humming-birds in plant fertilisation.

Alexander Agassiz has visited Down.

Sales of Facts and arguments for Darwin.

Encloses copy of T. H. Farrer letter [7015] and observations on the self-sterility of Eschscholzia.