Undertakes to write geological part of Admiralty Instructions [A manual of scientific enquiry (1849), Collected papers 1: 227–50]. Has doubts as to his success.
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Undertakes to write geological part of Admiralty Instructions [A manual of scientific enquiry (1849), Collected papers 1: 227–50]. Has doubts as to his success.
Sends MS of his chapter on geology for Manual [Collected papers 1: 227–50]. Fears it may be too long. Does not much like it but can do no better. After hesitation, has recommended books. Defends his point that mere collection of rock specimens is "of hardly any use to Geology".
Sends MS of "Geology" for Manual [Collected papers 1: 227–50]. First parcel lost. Asks JFWH to give advice on an unclear note, translated from Élie de Beaumont, on measuring incline of lava-flows.
Describes colour changes from blue to red in valves of operculum of the cirripede genus Ibla.
Sends two valves of Ibla.
In his chapter [for Manual, Collected papers 1: 227–50], he will strike out any part that JFWH wants struck out, but if much shortening is required it will need rewriting.
Thanks JFWH for the trouble he has taken to correct printing error in "Geology".
Discusses Dr Gully’s water-cure.
Sends a copy of Origin as a measure of his respect and in recognition of the obligation he feels he owes to JFWH’s book [A preliminary discourse on the study of natural philosophy (1831)]. "Scarcely anything in my life made so deep an impression on me."
Thanks JFWH for his "Physical geography" [from the Encyclopaedia Britannica (1861)]
and for what he says about Origin, though JFWH goes but a little way with CD. Gives reasons why he cannot accept "Design" in nature, though he is in a "complete jumble" on the point. Is confident of his views because they have aided good workers in several fields to "group and understand many scattered facts".
Requests information for W. S. Macleay on JFWH’s method of catching pelagic animals while ship is under way.
Sending CD's new book, The Origin of Species. Acknowledges CD's deep obligation to JH's Prelim. Discourse. 'Scarcely anything in my life made so deep an impression on me....'
Has promised Alexander Macleay that he would send details of the nets JH used to catch pelagic animals.
As JH has accepted the superintendency of the Admiralty Manual he will try to undertake the geological part, but it will take time as he is busy on another project.
As JH is interested in colors he sends him details of the color changes that the genus Ibla undergoes. Will send him a specimen if desired.
Encloses samples of the Ibla. Outlines the method of making it change color. Hopes he will not have to re-write his geological chapter for the Admiralty Manual.
Has forwarded JH's note to Robert Mallet, who no doubt will compress his part. Encloses his own part,which he fears may be too long. Would like a chance to see the proofs. When completed would like several copies.
Sends his manuscript. P.O. has been unable to trace the missing parcel. Comments on J. B. Elie de Beaumont's method of measuring lava streams; emphasizes the importance of repeated observations. Would like copies of the manual when completed.
Thanks for his obliging note. Has already had one from John Murray. Hopes the Admiralty Manual will bear fruit. Has been at Malvern for three months and his health has improved enormously.
Is grateful for the present of JH's Physical Geography. Is pleased also with JH's note on his own book on species. Comments on some of the theories expressed in this work.