Thanks for JDH’s interesting details about the Galapagos.
Clarification of CD’s query about the relationship between the range of a genus and the ranges of its constituent species.
Showing 21–40 of 96 items
The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Thanks for JDH’s interesting details about the Galapagos.
Clarification of CD’s query about the relationship between the range of a genus and the ranges of its constituent species.
Regularly attends Owen’s lectures. Owen at pains to show groups are not linked. Thus makes Lepidosiren appear fish-like.
GRW thinks embryology will become chief guide to insect classification. But contradictions between classification based on embryological and adult characters do occur.
Answer to CD’s query on genera and species ranges.
Comments on typical forms.
Preparing first part of Galapagos plants for printing.
Thanks for information on printing charges
and for clarifying "typical forms".
In a few days CD will go away for six weeks.
Sends samples likely to contain Infusoria and some that Hooker collected in Antarctic regions.
Defines the term "typical species" and discusses its use among zoologists. Cites example of type of Carnivora. Comments on general law of development of parts in animals. Cites teeth of Carnivora.
Is puzzled by CD’s question about the Viverridae; thinks if there were only one species he might regard it as an aberrant of some other group and not select it as a type of the Carnivora.
Sends calculations of angles of elevation [of sea-bottom, for South America?].
Swale has sent Lady Willoughby’s diary, which EAD will forward to CD.
Family financial matters.
Sends Lord Enniskillen’s account of origin of the Irish yew: transplanted from the wild; propagated by cuttings thereafter. Offspring recently raised from seed are intermediate between common and Irish [weeping] yew.
Discusses a paper on the Rio Negro.
[Recto is a list of Galapagos shells, by island, signed GBS. Verso is another list of shells in EF’s hand.]
Sends HD a reference to human lice from Charles White 1799.
Asks if J. E. Gray has returned [printing] estimates for Zoology.
Henslow has some Galapagos plants which he forgot to forward to JDH.
Arrangements for Emma’s return to Down.
CD has been "wonderfully strong".
Discusses intestinal worms among humans.
Comments on origin of human races.
Sends a quotation from de Vallemont’s Curiosities of nature and art in husbandry and gardening (1707) showing that the value of saltpetre in manure and the advantage of steeping seeds in specially prepared liquid manure were well known at the time.
Invites GRW and his family to visit.
About the researches of Ehrenberg. "I have … sent him several packets of objects from my voyage & that of Dr. Hooker".
Thanks for earth samples. Discusses Infusoria in samples from Galapagos and Cape Verde Islands. Would like samples from other sites. Will send further results of investigations.