Further comments on JAHdeB’s MS.
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Further comments on JAHdeB’s MS.
Explains the difference between the terms bort and carbonate with reference to jewellery manufacture and offers to send JSH more bort dust.
Is relieved his book [Himalayan journals] has been well received and glad he has successfully completed it.
Thanks JDH for dedication of Himalayan journals. CD praises the work and suggests stylistic revisions.
Lyell’s remarks on lava beds in letter from Madeira are not original – they refer exclusively to Élie de Beaumont’s data.
No summary available.
More praise for Himalayan journals.
How remote was glacial action in Himalayas?
Implies Himalayas were birthplace of many plants.
Final volume of Cirripedia to be printed in two or three months.
No summary available.
JDH summarises letter from Humboldt.
JDH answers CD’s questions on glacial action in Himalayas.
CD welcomes the prospect of the Philosophical Club of the Royal Society as means for seeing old acquaintances and making new ones. Will try to go up to London regularly.
Admits that the warning from JDH and Asa Gray (that more harm than good will come from combat over the species issue) makes him feel "deuced uncomfortable".
Reflects upon the complexity of Agassiz; how singular that a man of his eminence and immense knowledge "should write such wonderful stuff & bosh".
CD "lectures" JDH on taking care of his health.
CD’s pleasure in London trip.
CD and Emma have taken season tickets to Crystal Palace.
Edward Forbes’s "Introductory Lecture" is the best CD ever read.
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].
CD gives his definition of "highness" and "lowness" as "morphological differentiation" from a common embryo or archetype. JDH’s view, with which CD agrees when it can be applied, is the same as Milne-Edwards’, i.e., the physiological division of labour. There is little agreement among zoologists and CD admits his own lack of clarity.
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.
CD’s view requires only that ancient organisms resemble embryological stages of existing ones. Thus "highness" in plants is difficult to evaluate because they have no larval stages. Would compare highest members of two groups, rather than archetype, to determine which group was higher. Against Forbes’s polarity and parallelism.
Should like to examine the correspondent’s Madeira cirripedes but is too much occupied with other subjects of natural history.
No summary available.
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].
Discusses specimen of Balanus crenatus.
Sorry JP’s children are ill.
Will come to Liverpool if well [for meeting of BAAS].
Sends beetle he cannot identify.
Reading J. O. Westwood [Introduction to the modern classification of insects (1839–40)] has reawakened his passion for entomology.
On individuality.
Huxley’s review exquisite, but too severe on Vestiges; sorry for ridicule of Agassiz’s embryonic fishes.
Stonesfield mammals.
J. O. Westwood deserves Royal Society Medal.
Will begin species work in a few days.