George Bentham’s list of aberrant plant genera. JDH appended the number of species in each genus according to E. G. Steudel’s catalogue [Nomenclator botanicus (1840–1)] and according to JDH and Bentham.

JDH speculates on effect of splitting Australia longitudinally on distribution; it becomes an argument for new creations.

JDH’s "grand speech" on receiving the Royal Medal.

Is Bentham’s list of aberrant genera biased by exclusion of genera with many species?

JDH’s belief that Aquilegia varieties are one species is consistent with their great interfertility.

Bentham’s list of aberrant genera: CD’s worry that he eliminated large genera a priori is half right. He eliminated those large, anomalous genera that virtually constitute natural orders. JDH criticises CD’s tabulations of aberrants.

Difficulty of distinguishing affinity and analogy in plants.

Debates aberrant species, e.g., Ornithorhynchus and Echidna, with JDH. CD argues they are result of extinction having removed intermediate links to allied forms.

Studying effects of disuse in wings of tame and wild ducks.

Tabulations showing that number of species in a genus is not correlated with number of genera in an order.

Thanks for subscription to Down Coal and Clothing Club, whose finances are improving.

Discusses his account. Mentions health of children.

JDH’s contempt for R. I. Murchison.

There is a Cyperus species and a Pteris species endemic to hot volcanoes of Ischia. Why are there no other migrators?

Discusses how Fuegians and other primitive peoples light fires.

No summary available.

Thanks for writing about E. A. Darwin’s illness. Will never forget the comfort she was [when Anne Darwin died, 1851].

Arranges to return a collection of cirripedes which belongs to her husband [Samuel Stutchbury].

Thanks for Lady Holland’s kind present. Will only lend it to his sister-in-law and his aunt.