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To J. D. Hooker   1 July [1857]

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Summary

George Henslow’s curtness to JDH: "an attack of religion".

Embryonic leaves. Adaptive functions and taxonomic significance of cotyledons.

Asa Gray. Separation of sexes in U. S. trees.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  1 July [1857]
Classmark:  DAR 114: 198
Letter no:  DCP-LETT-2116

To J. D. Hooker   5 July [1857]

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Summary

Does JDH’s Wahlenbergia confirm CD’s law? Variations of one species assume the character of a distinct but allied species or genus.

Seed-salting: old ones float and germinate.

Owen’s "grand paper" [? J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  5 July [1857]
Classmark:  DAR 114: 203
Letter no:  DCP-LETT-2117

To J. D. Hooker   14 July [1857]

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Summary

Asks to borrow several Floras. Must redo calculations as John Lubbock has shown him an important error.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  14 July [1857]
Classmark:  DAR 114: 204
Letter no:  DCP-LETT-2124
Document type
letter (3)
Author
Addressee
Correspondent
Darwin, C. R. (3)
Hooker, J. D.[X]
Date
1857
07
01 (1)
05 (1)
14 (1)
letter