Commiseration on the death of Anne.
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Commiseration on the death of Anne.
Tells of the burial of Anne.
Thoughts on the death of Anne.
Thoughts after the death of Anne.
James Wilson reports case of salmon hybrids.
Herrings inhabit freshwater lake in Scotland during winter.
JDH will edit juror reports for the Great Exhibition.
Has sent CD some cirripedes and notes which he hopes will be of use. Gives details of occurrence and source of some of the specimens.
Flora of New Zealand.
Reconsidering variability of insular species.
Becoming convinced of the probability that the southern flora is a fragmentary one – all that remains of a great southern continent.
His difficulties in answering CD’s letter of 3 Jan [1852] [see 1469]. There is no Lepas mitra in the Lorenz Spengler collection. He undertakes to compare the specimens of Balanus sent by CD with those of Spengler.
He thanks CD for his book [Fossil Cirripedia (1851)].
His work with Professor Forchhammer and Mr Worsaae.
Explains the effects of the falling prices of wheat and cattle on the rents from CD’s and his sister Susan Elizabeth Darwin’s farms.
Asks for more information about CD’s idea of a ‘more permanent arrangement’ with his tenant.
Explains the drawback of a lease or a corn rent.
Discusses taxonomic relations of Alcippe.
Acknowledges the receipt of some securities.
Royal Society votes its Royal Medal for 1853 to CD. JDH reports the debate and vote at the Royal Society Council.
Honoured for Coral reefs
and Cirripedia.
Is relieved his book [Himalayan journals] has been well received and glad he has successfully completed it.
JDH summarises letter from Humboldt.
JDH answers CD’s questions on glacial action in Himalayas.
Birth of JDH’s second child.
Asks CD’s view of "highness" and "lowness" in animals. Gives his own for plants; extent of deviation from type, e.g., floral parts deviating from leaf.
Reading B. C. Brodie’s Psychological inquiries [1854].
JDH on "highness" of Coniferae: they are genuine Dicotyledons, not a link to cryptogams; that is a geologists’ fallacy. Thus they are highest plants in Carboniferous.
Does not agree with CD’s "elastic" species theory. Long correspondence with Lyell on this.
JDH and F. W. Binney identify Calamites specimens as pith casts. They are cryptogams related to, but higher than, Lycopodiaceae and contradict progression.
Insects found in coal.
Lyell says Stonesfield slate marsupials are actually placentals.
JDH reading Alexander Braun on individuality ["Das Individuum der Pflanze in seinem Verhältniss zur Species", Abh. K. Akad. Wiss. Berlin (Phys. Kl.) (1853): 19–122].
The land shells, both fossil and recent, of Madeira and Porto Santo have features peculiar to them, so RTL would have no difficulty in identifying them.
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?