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From J. D. Hooker   2 [March] 1846

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Summary

Thanks for Edward Forbes’s letter. Botanical evidence conflicts with parts of his theory but supports others. Is becoming more of a migrationist.

Bentham agrees with JDH on polymorphism.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  2 [Mar] 1846
Classmark:  DAR 100: 63–8
Letter no:  DCP-LETT-958

From C. G. Ehrenberg   11 March 1846

Summary

Describes Infusoria in Rio Gallegos samples.

"Fluthgebiete" means estuary deposit.

Discusses dust samples from Malta. Asks for further samples.

Author:  Christian Gottfried Ehrenberg
Addressee:  Charles Robert Darwin
Date:  11 Mar 1846
Classmark:  DAR 39: 62–3
Letter no:  DCP-LETT-960

To J. D. Hooker   [13 March 1846]

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Summary

Agrees with JDH about Forbes’s views.

Discusses A. Saint-Hilaire’s lectures and asks on what grounds botanists judge the relative "highness" of plants.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [13 Mar 1846]
Classmark:  DAR 114: 56
Letter no:  DCP-LETT-961

To J. D. Hooker   [24 March 1846]

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Summary

C. G. Ehrenberg wants specimen grasses from Ascension Island.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [24 Mar 1846]
Classmark:  DAR 114: 57
Letter no:  DCP-LETT-962

To J. D. Hooker   [29 March or 5 April 1846]

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Summary

If JDH can send grasses CD will write to Ehrenberg enclosing them.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [29 Mar or 5 Apr] 1846
Classmark:  DAR 114: 58
Letter no:  DCP-LETT-963

From J. D. Hooker   [25 March 1846]

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Summary

JDH recognises the existence of "altered states" of continental species in island floras. The botanists’ difficulty in determining a new species is no grounds for dismissing the important question of altered forms.

Will look for Ascension plants for Ehrenberg.

French Galapagos collections confirm JDH’s view that plants arrived from north.

Cannot agree with Forbes on North Atlantic flora.

Botanical definition of "highness" and "lowness" usually means complexity and simplicity.

Some plants, such as aquatic ones, are cleistogamous. Cannot see why they should not be.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [25 Mar 1846]
Classmark:  DAR 104: 188–91
Letter no:  DCP-LETT-964

To C. G. Ehrenberg   25[–31?] March [1846]

Summary

Sends copy [of "Fine dust in the Atlantic Ocean", Collected papers 1: 199–202]. Attempting to obtain further samples for CGE.

Author:  Charles Robert Darwin
Addressee:  Christian Gottfried Ehrenberg
Date:  25[–31?] Mar [1846]
Classmark:  Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43 Bl. 15–17)
Letter no:  DCP-LETT-965

To Smith, Elder & Co.   30 March [1846]

Summary

Discusses publication of his book [South America].

Author:  Charles Robert Darwin
Addressee:  Smith, Elder & Co
Date:  30 Mar [1846]
Classmark:  Archives of the New York Botanical Garden (Charles Finney Cox Collection)
Letter no:  DCP-LETT-967

From J. D. Hooker   30 March 1846

Summary

Sends specimens of grasses from Ascension Island for CD to forward to Christian Gottfried Ehrenberg.

Includes list of indigenous flowering plants of Ascension Island.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  30 Mar 1846
Classmark:  Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 123 Bl. 9)
Letter no:  DCP-LETT-967F

From G. R. Waterhouse   [30 March 1846]

Summary

Sends a list of mammalian remains found in the Buenos Aires district and purchased by the British Museum.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  [30 Mar 1846]
Classmark:  DAR 39: 64–5
Letter no:  DCP-LETT-968

To Thomas Gold Appleton   31 March [1846]

Summary

Thanks for the gift of Frémont 1845. Has had a visit from R. J. Mackintosh and his wife Mary, Appleton’s sister.

Author:  Charles Robert Darwin
Addressee:  Thomas Gold Appleton
Date:  31 Mar [1846]
Classmark:  Private collection
Letter no:  DCP-LETT-968F

To George Brettingham Sowerby Jr   31 [March 1846]

Summary

Thanks for his note; as soon as CD knows how many Cordillera Tertiary fossil shells require illustration he will make arrangements for GBS jr to begin.

Author:  Charles Robert Darwin
Addressee:  George Brettingham Sowerby, Jr
Date:  31 [Mar 1846]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-969