Thanks JvH for his address [to the Philosophical Institute of Canterbury], his Geological Report [Topographical and geological exploration of the western districts of the Nelson province, New Zealand (1861)],

and for the "honourable" notice of Origin.

CD especially interested in JvH’s facts on the old glacial period.

Asks about fossil remains [of supposed living mammalia] which CD thinks may be like "the Solenhofen bird-creature" [Archaeopteryx].

Urges the recording of rate and manner of spreading of European weeds and plants and observation on which native plants "most fail".

Sends copy of his December letter [see 3851], which he fears is lost.

Has been in the Southern Alps and has discovered a wonderful pass.

Thanks CD for letter [3935].

Encloses report [missing] of his latest expedition [to west coast], which had a grand result.

Acknowledges receipt of JvH’s letters and report of his expedition. Congratulates him on its success.

Has sent Origin.

There is hardly a place in the world as interesting as New Zealand with respect to geographical distribution.

Will quote the case of the ducks that nest in trees.

Is working hard on Variation.

In a forthcoming paper JvH will show geological age of the world to be "incalculable" and will confirm CD’s theory that "the old system of chronological sequence of formations all over the world must be abandoned in a great degree".

Predicts the links between species, genera, and classes will be found.

CD elected an Honorary Member [of Philosophical Institute of Canterbury].

Sends a map of the province of Canterbury, marking his own and other explorations.

CD too unwell to answer JvH’s letter.

He was interested in the "marvellous ground parrot"

and the report on "naturalisation of animals in New Zealand".

Honoured by election to the Philosophical Institute of Canterbury.