Summary

Congratulates JDH on finishing his introductory essay [to Flora Tasmaniae].

Lyell’s position on mutability appears more positive in his letters to JDH than in those to CD. Considers JDH a convert.

Summary

Writing section on large and small genera [for Natural selection, ch. 4].

Huxley supersedes Owen on parthenogenesis.

Buckle’s History of civilisation in England extremely interesting.

Summary

CD will advise Daniell not to apply for Royal Society grant.

CD’s experiment: fish fed seeds, which germinated when voided.

Summary

Species with marked varieties.

Dana’s pamphlet also too metaphysical for CD.

Natural selection chapter on hybridism completed.

Doubts JDH will resist theory in his introduction to Flora Tasmaniae.

Summary

CD finds Alphonse de Candolle very useful, though JDH has low opinion.

CD argues for accidental introductions explaining some odd distributions, e.g., New Zealand vs Australian plants.

CD’s method.

Diverging affinities in isolated genera.

Summary

Huxley’s lectures [Man’s place in nature (1863)]; he would be a scientific H. T. Buckle, if he were more careful.

Asks CD what the evidence is for inheritance of acquired characteristics.

Summary

Lyell receives Copley Medal; CD to write notes for JDH’s éloge of Lyell.

Summary

On papilionaceous flowers and CD’s theory that there are no eternal hermaphrodites. Connects this theory to absence of small-flowered legumes in New Zealand and the absence of small bees as pollinators.

Summary

Praises JDH’s Australian introduction.

Disputes JDH’s emphasis on SE. and SW. Australian flora.