Is in a mess with his correspondence and will get no assistance before 1 April.
Has agreed to give an address on the Darwinian theory at Nottingham [meeting of BAAS].
Thanks for the remittance.
Both WBT and Mr Zurhorst will repeat Zurhorst’s experiment to eliminate any chance of error.
Edward Blyth is writing on Indian cattle for the Field [27 (1866): 55–6, 77].
Sends copies of photographs of himself. Asks for photographs of German naturalists.
Comments on EH’s account of Protogenes primordialis.
Has found Verlot.
His sister [Emily Catherine Langton] is dying [d. 2 Feb 1866].
His stomach still very bad. Writes one or two hours and reads a little.
JDH is a wretch to remind CD of his coal-plant prophecy.
Glad JDH will give Nottingham lecture.
Welcomes ARW’s paper on pigeons ["On the pigeons of the Malay Archipelago", Ibis 1 (1865): 365–400].
Influence of monkeys on distribution of pigeons and parrots.
Asks ARW to explain a passage in his paper on Malayan Papilionidae [Trans. Linn. Soc. Lond. 25 (1866): 1–71] on how dimorphic forms are produced. CD knows of varieties "that will not blend or intermix", but which produce offspring quite like either parent.
ARW’s remarks on geographical distribution in Celebes "will give a cold shudder to the immutable naturalists".
Presses ARW to work on his travel journal.
Discusses pigeon and poultry woodcuts [for Variation].
WBT’s poultry book is at last in the hands of a solvent publisher [The poultry book (1867)].
Sorrow about Mrs Langton. Has been haunted by death these six or eight years. Now cannot bear to look at children asleep in bed – a sight he once thought the loveliest thing in creation.
Discusses exchange of photographs with German scientists.
Comments on attitudes of German scientists toward CD’s theory.
Names several scientists who exchanged photographs: Braun, Virchow, Leydig, and Dohrn.
Last fascicles of FR’s book Der Mensch [1866] being sent.
Finds roots of human race in Negroes of Africa, Bushmen of South Africa and New Guinea, and short-headed peoples of south Asia.
Has translated natural selection as natürliche Auslese.
Ludwig Rütimeyer active in developing the descent of mammals.
Sends a paper on Bombus ["On the habits of some species of humble-bees", Commun. Essex Inst. 4 (1866): 98–104].
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Thinks that E. W. L. Tempel's comet may be connected with that of Biela. Comments on this.
Has seen JH's nephew and will be pleased to sign his certificate. His instinct and reason are against dating Stonehenge as post-Roman.
Has just written to Longman's to say how pleased he will be if Miss Kerth translates his book into French. Regrets delay, but has been travelling in Italy.
Sending his observations on the effect of the moon on the earth's atmosphere.
Has no knowledge of transactions affecting trust fund for W. H. B. Hollier, other than what JH noted in previous letters.