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To Francis Darwin   [17 April 1873]

Summary

Fears all the seeds are dead. Will try with less vapour of formic acid.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  [17 Apr 1873]
Classmark:  DAR 271.3: 7
Letter no:  DCP-LETT-8866

From Francis Darwin   [30 September 1873]

Summary

He is travelling overnight by train from London to Pantlludw and will wake A. R. Ruck with a morningade on his flute.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [30 Sept 1873]
Classmark:  DAR 274.1: 27
Letter no:  DCP-LETT-8942F

From Francis Darwin   14 August [1873]

Summary

Has found Lathyrus maritima on the cliffs near Barmouth.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  14 Aug [1873]
Classmark:  DAR 274.1: 26
Letter no:  DCP-LETT-9009F

From Francis Darwin   [16 or 17 August 1873]

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Summary

Gives his opinion on why tubes of peas split to the right of the loose stamens [inLathyrus sylvestris].

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [16 or 17 Aug 1873]
Classmark:  DAR 77: 140–1
Letter no:  DCP-LETT-9012

To Francis Darwin   15 August [1873]

Summary

Observations on bees’ biting holes in Lathyrus.

Suggests an experiment FD could carry out with Drosera.

CD is working on Mimosa, and "everything has turned out as perversely as possible".

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  15 Aug [1873]
Classmark:  DAR 271.3: 8
Letter no:  DCP-LETT-9014

To Francis Darwin   18 [August 1873]

Summary

Pollination and floral structure of Lathyrus. Asks where bees bite through the flowers.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  18 [Aug 1873]
Classmark:  DAR 271.3: 9; DAR 271.4: 1
Letter no:  DCP-LETT-9015

From Francis Darwin   [25 August 1873]

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Summary

Regrets that "our brush theory" is wrong.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [25 Aug 1873]
Classmark:  DAR 77: 142–3
Letter no:  DCP-LETT-9016

To Francis Darwin   [4 September 1873]

Summary

Asks FD to bring any book that gives the affinities of the various earths, alkalis and metals.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  [4 Sept 1873]
Classmark:  DAR 271.9: 2
Letter no:  DCP-LETT-9040F

From Francis Darwin   [19 September 1873]

Summary

Reports that S. W. Moore may be able to provide various substances for CD’s research on the digestive power of Drosera (sundew).

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [19 Sept 1873]
Classmark:  DAR 274.1: 7
Letter no:  DCP-LETT-9059F

From Francis Darwin   [before 26 June 1873]

Summary

Has discussed with E. E. Klein about the purchase of a Hartnack microscope from Paris.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [before 26 June 1873]
Classmark:  DAR 274.1: 8
Letter no:  DCP-LETT-9092F

To Francis Darwin   10 October 1873

Summary

Asks for details about microscope parts.

Wants FD to ask Hooker for species of Desmodium; CD believes he has found new movements.

Also ask whether Hooker has Drosophyllum.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  10 Oct 1873
Classmark:  Royal Botanic Gardens Kew (JDH/3/6 Insectivorous plants 1873-8 f.1)
Letter no:  DCP-LETT-9095

From Francis Darwin   [11 October 1873]

Summary

Has got a cold, so will not go to Kew. Wrote to Hartnack about price of microscopes and describes own model. Told Hooker about Tisley Spiller’s microscope in Paris.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [11 Oct 1873]
Classmark:  DAR 274.1: 9
Letter no:  DCP-LETT-9095F

To Francis Darwin   22 October 1873

Summary

Lists observations he would like FD to make on the dried species of Desmodium at Kew.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  22 Oct 1873
Classmark:  DAR 271.3: 10
Letter no:  DCP-LETT-9106

To Francis Darwin   23 October [1873]

Summary

Wants FD to look at the little lateral leaflets of Desmodium. CD has "a wild hypothesis that the little leaflets may be tendrils reconverted into leaflets".

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  23 Oct [1873]
Classmark:  DAR 271.3: 11
Letter no:  DCP-LETT-9110

From Francis Darwin   [26? October 1873]

Summary

Observations on the leaves of Desmodium. Most are trifoliate; none has tendrils. Gives some comments from Hooker.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [26? Oct 1873]
Classmark:  DAR 209.2: 21–2
Letter no:  DCP-LETT-9115

From Francis Darwin   [after March 1873]

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Summary

Fears [CD’s] albumen theory will not work because albumen is coagulated and filtered out in making extracts of belladonna, hyoscyamine, and colchicine [alkaloid poisons].

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [after Mar 1873]
Classmark:  DAR 58.1: 132
Letter no:  DCP-LETT-9198

From Francis Darwin   [after March 1873]

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Summary

Has investigated whether it makes a difference if extracts [of alkaloid poisons] are made from leaves, seeds, or roots.

Author:  Francis Darwin
Addressee:  Charles Robert Darwin
Date:  [after Mar 1873]
Classmark:  DAR 58.1: 133
Letter no:  DCP-LETT-9199

To Francis Darwin   [17 September 1874]

Summary

Asks FD to come early to write from dictation.

Thanks Amy for her drawing of Utricularia montana.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  [17 Sept 1874]
Classmark:  DAR 271.3: 12
Letter no:  DCP-LETT-9218

To Francis Darwin   [September 1875 or later?]

Summary

Asks FD to make out [Hermann] Hoffmann’s conclusions about the fertilisation of Phaseolus multiflorus [in Untersuchungen zur Bestimmung des Werthes von Species und Varietät (1869)].

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  [Sept 1875 or later?]
Classmark:  CUL, Darwin Pamphlet Collection R112
Letter no:  DCP-LETT-9219A

To Francis Darwin   [c. February 1875?]

Summary

Begs FD’s pardon: his notes on Utricularia amethystina are on same page with those on U. nelumbifolia.

Author:  Charles Robert Darwin
Addressee:  Francis Darwin
Date:  [c. Feb 1875]
Classmark:  DAR 271.4: 8
Letter no:  DCP-LETT-9219B
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letter (239)
Date
1866 (1)
1867 (1)
1868 (1)
1869 (1)
1870 (7)
1871 (14)
1872 (6)
1873 (23)
1874 (5)
1875 (12)
1876 (28)
1877 (8)
1878 (47)
1879 (32)
1880 (13)
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