Memorandum of geological instructions to guide ABU during a voyage of [Constitucion] to survey the coast of Peru.
Recommends David Williams’ paper on raised beaches of Devon [David Williams, "Letter … on the raised beaches of Barnstaple",Trans. Geol. Soc. Lond.2d ser. 5 (1840): 287–8] be shortened and published immediately after Sedgwick’s and Murchison’s paper ["Description of a raised beach in Barnstaple",ibid., pp. 279–86] as chief point of paper is to support their conclusions.
Has just heard of RF’s return [from New Zealand]. Hopes to see him.
CD and family are well, but he is a different man in strength and energy from when he was "Flycatcher" in theBeagle.
Has just finished his book [South America].
Hopes to start looking over his species notes in about a year.
Very much enjoyed Southampton [meeting of BAAS, 9–12 Sept].
Many thanks for JDH’s beautiful cirripede drawing. Questions on JDH’s observations.
Observations on barnacles.
Would like to meet JDH in London.
On the results of Robert Bunsen’s journey to Iceland, which he compares in detail with his own research.
"I have for the present given up Geology, & am hard at work at pure Zoology & am dissecting various genera of cirripedes, & am extremely interested in the subject." "I always, however, keep on reading & observing on my favourite work on Variation or on Species, & shall in a year’s time or so, commence & get my notes in order."
JDH’s proposed India trip.
Will sorely miss discussions with JDH on species theory.
CD is getting on wretchedly with cirripedes.
Thanks Mrs Lyell for barnacle specimens.
Mentions Agassiz’s classification of saurians.
Discusses letter from Chambers on "roads" in Scottish glens; views of Agassiz and Buckland on the glens.
Is reading Hugh Miller [First impressions of England and its people(1847)].
Offers HM-E some specimens ofLernaea, a crustacean parasite onBalanus elongatus.
Mentions opinion of Harry Goodsir about a form CD believes to be the larva ofLernaea.
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