Asks for a note about sling for Leonard’s arm, as he is about to leave for school.

Cites cases of difference in coloration between the sexes of some species of Crustacea, annelids, and spiders.

Discusses dimorphic plants and self-sterility.

Outlines some experiments involving the crossing of different species of orchids.

Encloses extract from Carl Claus, Die freilebenden Copepoden [1863].

Thanks for "Climbing plants" offprint and for references on fertilisation of flowers.

Considering the bounty of work already done, he is looking for something original to do.

Subularia does not grow in Westphalia.

On whether to make woodcuts for Variation in Russia or use Murray’s stereotypes. He has similar advance publication agreements with Carl Vogt, E. A. Rossmässler and Theodor Billroth.

The Russian version of Origin is translated from Bronn’s German edition.

Asks if he should give the clichés of Variation to E. Schweizerbart.

Will find out identity of Robert Trail.

Begins to hope baby may survive; description of symptoms.

Rejoices over baby’s improvement.

Horace Darwin has intermittent fever.

Thanks JDH for page of the Farmer, a great service.

R. Trail’s potato grafting case would be of extreme value for demonstrating Pangenesis. [See Variation 1: 395.]

Asks JM not to send stereotypes [of Variation] to Schweizerbart until he has heard that Carus will translate it.

Congratulates TB on his son’s success in scientific studies.

Susan Darwin’s death [Oct 1866] has severed last ties of family with Shrewsbury.

JVC is willing to translate [Variation], especially because of his conviction that progress of biology depends on proving CD’s theory.

Ernst Haeckel’s book [Generelle Morphologie (1866)] will do mischief because EH is so immoderate. Suggests CD tell EH that he has done him a bad service. CD is the only one to whom EH would listen.

C. Nägeli’s long letter on his four years of work on Hieracium appears to be valuable. Nägeli wants a set of British forms in exchange for German ones.

Sends note on a new genus of Umbelliferae (Drusa) in Canaries; speculates on origin.

Reports on an experiment in crossing potato varieties.

JDH has left for Paris with Thomas Thomson.

Baby is better.

Arrangements for obtaining Carl Nägeli a set of British Hieracium specimens.

Asks whether he may have right to translate Variation into German.

Thanks for his long letter on morphological laws.

CD writes about stereotypes for German and Russian editions of Variation.

CD is delighted that JVC will undertake translation of Variation.

Agrees with JVC’s opinion of Haeckel’s book [Generelle Morphologie (1866)]. CD believes it is bad policy for Haeckel to speak so positively about a disputed theory [i.e., CD’s] and particularly regrets the severity of EH’s criticisms of other authors.

Struck by singular clarity of EH’s Generelle Morphologie. Remarks on various authors seem too severe. Severity leads the reader to take the side of the attacked person.

Making slow progress in correcting Variation.