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From Charles Lyell   [1 July 1856]

Summary

To cast doubt on CD’s view that volcanic action is associated with elevation of land, CL suggests that local oscillations in strata underlying volcanoes could also explain how active volcanoes have uplifted fossil deposits of marine shells. Overall he is more inclined to believe that recent volcanoes belong to areas of subsidence rather than of elevation.

Author:  Charles Lyell, 1st baronet
Addressee:  Charles Robert Darwin
Date:  [1 July 1856]
Classmark:  Kinnordy MS (private collection)
Letter no:  DCP-LETT-1915A

From John Henry Gurney   2 July 1856

Summary

Hybrids of Phasianus versicolor breed freely between themselves as well as with common pheasants. Has been assured that hybrids between mallards and pintails are sometimes fertile inter se.

Author:  John Henry Gurney
Addressee:  Charles Robert Darwin
Date:  2 July 1856
Classmark:  DAR 165: 259
Letter no:  DCP-LETT-1916

From J. D. Hooker   10 July 1856

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Summary

[T. Bell Salter’s?] "hybrid" Epilobium a false claim.

Admires Huxley’s response to Falconer [see 1904].

Tristan da Cunha plant list, requested by CD, supports JDH’s position [on continental extension?].

Chilean plants not exceptional.

JDH considers parallels between Australian Alps and European plants strong evidence for multiple creations.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  10 July 1856
Classmark:  DAR 100: 96–9
Letter no:  DCP-LETT-1923

From S. P. Woodward   15 July 1856

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Summary

Has reduced 20 Cyrena species to geographical varieties of one species, Cyrena fluminalis. Hooker is reducing Indian flora at the rate of 19 to 1.

Recommends W. H. Harvey’s Seaside book [1849] and Charles Pickering’s Races of man [1850].

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  15 July 1856
Classmark:  DAR 205.3: 304
Letter no:  DCP-LETT-1927

From S. P. Woodward   [15 July 1856]

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Summary

Lists Lusitanian shells with wide ranges beyond that geographical province.

Antiquity and elevation of land mass is more important than latitude for the distribution of shells.

Author:  Samuel Pickworth Woodward
Addressee:  Charles Robert Darwin
Date:  [15 July 1856]
Classmark:  DAR 205.3: 305
Letter no:  DCP-LETT-1928

From John Richardson   17 July 1856

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Summary

Responds to CD’s questions about the geographical distribution of freshwater fishes.

Author:  John Richardson
Addressee:  Charles Robert Darwin
Date:  17 July 1856
Classmark:  DAR 205.3: 285
Letter no:  DCP-LETT-1929
Document type
letter (6)
Addressee
Darwin, C. R.[X]
Date
1856
07
01 (1)
02 (1)
10 (1)
15 (2)
17 (1)
letter