Sends information on Gryphaea orientalis. [See South America, p. 212.]
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Sends information on Gryphaea orientalis. [See South America, p. 212.]
Mainly news of the three children.
CD sends queries on chemical composition of various Beagle mineral specimens.
Sends results of chemical tests on specimens [of salt, see South America, pp. 73–5].
Encloses abstract from Justus Liebig on composition of bones and their ability to withstand decay.
Congratulates JDH and condoles with him on possible position at Edinburgh. Although CD will miss him bitterly, he encourages JDH to view it as a good opportunity.
Sorry to hear that Humboldt is failing.
Agrees that CD’s fossil shells do not differ from those ADd’O saw in South America. Apparent differences due to errors by G. B. Sowerby. Collection magnificent; recommends special publication. Enabled ADd’O to correct error in dating of sandstone of Concepción. Lists geological periods represented in collection from Jurassic to Diluvian. Collection includes unusual group of crepidules.
Identifications of CD’s fossil shells. New species marked; many described previously by ADd’O.
Encloses analysis of salt from Patagonia. Cannot account for its inferiority.
Previous letter [missing] on Edinburgh position was ill-tempered. Friends assure him that he ought to be thankful for opportunity to try for professorship.
Reports meeting with Humboldt in Paris.