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From Robert Caspary   [after 9 June 1866]

Summary

Data on good and bad pollen-grain yields of different species. Sends sketches of two male Rhamnus catharticus flowers [see Forms of flowers, p. 294].

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  [after 9 June 1866]
Classmark:  DAR 109: A81; DAR 111: B45, B48b, B48c
Letter no:  DCP-LETT-10344

From Robert Caspary   17 December 1876

Summary

Thanks for copy of Cross and self-fertilisation.

Francis Darwin’s observation of nectaries in Pteris is most curious.

Doubts cross-fertilisation in the rare cases of two flowers on the same stalk in Victoria and Euryale.

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  17 Dec 1876
Classmark:  DAR 161: 123
Letter no:  DCP-LETT-10726

To Robert Caspary   21 February [1866]

Summary

Requests copy of paper read at Amsterdam Horticultural Congress, on graft-hybrids like that of Cytisus adami [see 5018].

Author:  Charles Robert Darwin
Addressee:  Johann Xaver Robert (Robert) Caspary
Date:  21 Feb [1866]
Classmark:  Yale University: Beinicke Rare Book and Manuscript Library (GEN MSS MISC Group 1559 F-2)
Letter no:  DCP-LETT-5012

From Robert Caspary   25 February 1866

Summary

Sends papers on graft-hybrids ["Sur les hybrides obtenus par la greffe", Bull. Congr. Int. Bot. & Hortic. Amsterdam (1865): 65–80, and "Über Mischlinge, durch Pfropfen entstanden", Sitzungsber. K. Phys.-oekon. Ges. Königsberg 6 (1865): 11–21].

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  25 Feb 1866
Classmark:  DAR 161: 118
Letter no:  DCP-LETT-5018

To Robert Caspary   4 March 1866

Summary

Thanks RC for photograph and for papers, which are of highest interest to CD. He is not fully convinced about the rose by RC’s graft-hybrid paper [Bull. Congr. Int. Bot. & Hortic. Amsterdam (1865): 65–80]. Still retains faith in his own view that no plant is perpetually self-fertilised.

Author:  Charles Robert Darwin
Addressee:  Johann Xaver Robert (Robert) Caspary
Date:  4 Mar 1866
Classmark:  DAR 92: A38–9
Letter no:  DCP-LETT-5026

From Robert Caspary   26 April 1866

Summary

Coming to London for Botanical Congress. Requests interview.

Thanks for photograph.

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  26 Apr 1866
Classmark:  DAR 161: 119
Letter no:  DCP-LETT-5067

From Robert Caspary   7 May 1866

Summary

Thanks CD for invitation. Solicitous of CD’s health. Will let Hooker decide whether CD’s health will allow his visit.

[Alexander] Braun in poor health.

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  7 May 1866
Classmark:  DAR 161: 120
Letter no:  DCP-LETT-5082

From Robert Caspary   25 May 1866

Summary

Plans to come to Down on 27 May.

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  25 May 1866
Classmark:  DAR 161: 121
Letter no:  DCP-LETT-5100

From Robert Caspary   18 February 1868

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Summary

Discusses the flowers of, and cross- and self-fertilisation in, certain aquatic plants. Gives cases of dichogamy and perfect self-fertility.

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  18 Feb 1868
Classmark:  DAR 76: B173–4
Letter no:  DCP-LETT-5894

To Robert Caspary   25 February [1868]

Summary

Will send English edition [of Variation] when available.

Mentions revisions in second issue concerning graft-hybrids.

Asks for Euryale seed for experiment.

Discusses fertility of crossed and self-fertilised plants.

Author:  Charles Robert Darwin
Addressee:  Johann Xaver Robert (Robert) Caspary
Date:  25 Feb [1868]
Classmark:  DAR 143: 252
Letter no:  DCP-LETT-5932

From Robert Caspary   2 April 1868

Summary

Finds important differences between English and German versions of Variation on graft-hybrids.

Experiments and observations on submerged flowers.

Author:  Johann Xaver Robert (Robert) Caspary
Addressee:  Charles Robert Darwin
Date:  2 Apr 1868
Classmark:  DAR 161: 122
Letter no:  DCP-LETT-6083
Document type
letter (11)
Addressee
Correspondent
Date
1866 (7)
1868 (3)
1876 (1)
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