Regrets the delay in sending copies of his paper.
Showing 61–80 of 235 items
Regrets the delay in sending copies of his paper.
Regrets the delay in sending copies of his paper.
Affinity of Galapagos with nearest Pacific islands. Relationship between ranges of species in time and space. Comparison of Malden Island and Galapagos plants. Affinities of Oceania plants with continental floras.
Advice to JDH on problems of printing and publishing.
Remarks on differences of species between islets of Galapagos group.
Asks JDH to forward publishing information to J. E. Gray.
Has received JDH’s infusorial specimens for Ehrenberg.
Writes to correct a statement made in his 1837 paper "On the formation of mould" [Collected papers 1: 49–53]. He should have said that marl was put on the field 30 years ago, not 80. Observations made on a visit to the field showed that worms had undermined the marl spread on the field at a faster rate than previously reported.
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.
Thanks for information on printing charges
and for clarifying "typical forms".
In a few days CD will go away for six weeks.
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".
Encloses letter from Ehrenberg [758] about Infusoria.
Intends to visit Kew.
Health and weather permitting, CD proposes to visit Kew.
Encloses letter from Ehrenberg [762], who wants information on deep-sea soundings from JDH’s voyage, and on isolated islands.
Encloses Ehrenberg letter, Galapagos seaweed, and specimens of Conferva.
H. Denny would like specimens of Antarctic Pediculi.
Encloses pamphlet from Ehrenberg who asks about deep-sea soundings from JDH’s voyage.
Acknowledges note and parcel for Ehrenberg.
Considers why different areas have different numbers of species. Gives an example opposing JDH’s view that paucity of species results from vicissitudes of climate. CD has concluded that species are most numerous in areas that have most often been divided, isolated from, and then reunited with, other areas. Cannot give detailed reasons but believes that "isolation is the chief concomitant or cause of the appearance of new forms".
Writes about canal shares EAD holds as trustee.
Origin of Antarctic brash ice.
Further on case of Lycopodium: does JDH know any genera of plants whose species are variable in one continent but not in another? Discussion on variations between floras as regards species richness, and factors affecting geographical distribution. On species, CD expects "that I shall be able to show even to sound naturalists that there are two sides to the question of the immutability of species; – that facts can be viewed and grouped under the notion of allied species having descended from common stocks". Mentions books and papers for and against species mutability. CD believes past absurd ideas arose from no one’s having approached subject on side of variation under domestication.
Would like to see Clarke’s paper
and would welcome visit from JDH.
Would like JDH to visit. Regrets he will not be fit to visit JDH.
Sends thanks for money.
Comments on treatment prescribed by his father.
Encloses notes by John Higgins with investment advice. Discusses advisability of investing in farmland in Lincolnshire. Cites advice of Sir John Lubbock concerning purchase of land.