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From Friedrich Hildebrand   23 October 1866

Summary

Explains dichogamy in Aristolochia. C. K. Sprengel was wrong.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  23 Oct 1866
Classmark:  DAR 166: 205
Letter no:  DCP-LETT-5254

From Friedrich Hildebrand   18 March 1867

Summary

Intends to begin a journal reviewing the botanical literature.

Sends his book [Die Geschlechter-Vertheilung bei den Pflanzen (1867)].

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  18 Mar 1867
Classmark:  DAR 166: 206
Letter no:  DCP-LETT-5447

To Friedrich Hildebrand   20 March [1867]

Summary

Thanks for two copies of Hildebrand’s monograph on plant sexuality (Hildebrand 1867a).

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  20 Mar [1867]
Classmark:  Courtesy of Eilo Hildebrand (photocopy) (Original, previously owned by Klaus Groove, sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.)
Letter no:  DCP-LETT-5450F

From Friedrich Hildebrand   2 January 1868

Summary

Reports making graft-hybrid potatoes.

Has found direct action of pollen in Mays [Zea] crosses and apple-trees.

F. Delpino has asked for CD’s address.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  2 Jan 1868
Classmark:  DAR 166: 207
Letter no:  DCP-LETT-5774

To Friedrich Hildebrand   5 January [1868]

Summary

Congratulates FH on graft-hybrid of potato. Importance of FH’s discovery to be discussed in Variation [2d ed., 1: 420].

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  5 Jan [1868]
Classmark:  Klaus Groove (private collection) (Original sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.)
Letter no:  DCP-LETT-5777

From Friedrich Hildebrand   18 May 1868

Summary

Sends graft-hybrid notice.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  18 May 1868
Classmark:  DAR 166: 208
Letter no:  DCP-LETT-6182

From Friedrich Hildebrand   3 July 1868

Summary

Thanks CD for mentioning his Corydalis and Primula experiments in Variation.

Has become Professor of Botany at Freiburg.

Encloses specimen of Corydalis cava.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  3 July 1868
Classmark:  DAR 166: 209
Letter no:  DCP-LETT-6267

From Friedrich Hildebrand   4 November 1868

Summary

Potato graft-hybrid fails to give potatoes.

August Weismann requests Wallace’s address to find out about experiments on butterflies hinted at in Variation.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  4 Nov 1868
Classmark:  DAR 166: 210
Letter no:  DCP-LETT-6448

To Friedrich Hildebrand   14 November [1868]

Summary

Suggests FH’s graft-hybrid potatoes should remain with FH.

Sends addresses of Alfred Russel Wallace and Alexander Wallace for August Weismann.

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  14 Nov [1868]
Classmark:  Eilo Hildebrand (collection of facsimiles). (Original, previously owned by Klaus Groove, sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.)
Letter no:  DCP-LETT-6459F

To Friedrich Hildebrand   16 November 1868

Summary

Thanks for Botanische Zeitung notice of CD’s paper ["On the character and hybrid-like nature of the offspring from the illegitimate unions of dimorphic and trimorphic plants", J. Linn. Soc. Lond. (Bot.) 10 (1869): 393–437]. FH writes clearest style of all German authors.

Asks that August Weismann be told about papers by Wallace and Bates.

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  16 Nov 1868
Classmark:  Eilo Hildebrand (collection of facsimiles) (Original, previously owned by Klaus Groove, sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.)
Letter no:  DCP-LETT-6461

To Friedrich Hildebrand   4 July 1870

Summary

Requests seeds of Nolana prostrata & Hibiscus Africanus, which have been matured in Germany or in the more Southern parts of Europe.

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  4 July 1870
Classmark:  Eilo Hildebrand (private collection of facsimiles). (Original, previously owned by Klaus Groove, sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.)
Letter no:  DCP-LETT-7264F

From Friedrich Hildebrand   16 July 1870

Summary

Sends CD some seeds.

Has been experimenting with Oxalis crosses.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  16 July 1870
Classmark:  DAR 166: 211
Letter no:  DCP-LETT-7278

To Friedrich Hildebrand   10 August [1871]

Summary

Mentions experiments on Lythrum.

Thanks for list of seeds.

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  10 Aug [1871]
Classmark:  Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Letter no:  DCP-LETT-7902

From Friedrich Hildebrand   5 February 1872

Summary

Praise for Descent.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  5 Feb 1872
Classmark:  DAR 166: 212
Letter no:  DCP-LETT-8201

To Friedrich Hildebrand   9 February 1872

Summary

Comments on FH’s paper ["Verbreitungsmittel der Compositenfrüchte", Bot. Ztg. 30 (1872): 1–14].

Discusses function of mucus filaments on seeds of Compositae and other plants.

Comments on Eugen Askenasy’s publication [Beiträge zur Kritik der Darwin’schen Lehre (1872)].

Comments on evolutionary views of Carl Nägeli.

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  9 Feb 1872
Classmark:  Klaus Groove (private collection). [Sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.]
Letter no:  DCP-LETT-8206

To Friedrich Hildebrand   15 May 1873

Summary

Asks for results of FH’s experiments fertilizing some flowers with pollen from the same flower, & other flowers with pollen from distinct flowers borne by the same plant.

Has read FH’s paper on the distribution of the seeds of the Graminæ (Hildebrand 1872, pp. 740–1) with great interest.

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  15 May 1873
Classmark:  Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Letter no:  DCP-LETT-8912F

From Friedrich Hildebrand   23 May 1873

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Summary

Sends results of his observations of cross- and self-fertilisation of Hypecoum grandiflorum and Eschscholzia californica [see Cross and self-fertilisation, pp. 331–2].

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  23 May 1873
Classmark:  DAR 76: B179–80
Letter no:  DCP-LETT-8920

To Friedrich Hildebrand   16 November [1873]

Summary

Thanks for FH’s work on the means of the distribution of plants (Hildebrand 1873).

Author:  Charles Robert Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  16 Nov [1873]
Classmark:  Klaus Groove (private collection); sold by Venator and Hanstein, Cologne (dealers), 16 March 2018
Letter no:  DCP-LETT-9146F

From Emma Darwin to Friedrich Hildebrand   20 November [1863]

Summary

ED writes on behalf of her husband, who is ill, to thank FH for his letter

and to thank [L. C.] Treviranus for his paper on orchids.

CD wishes to know whether Orchis pyramidalis grows in FH’s neighbourhood. He needs a fresh specimen to compare the stigma with those grown locally.

Author:  Emma Wedgwood; Emma Darwin
Addressee:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Date:  20 Nov [1863]
Classmark:  Courtesy of Eilo Hildebrand (photocopy) (Original, previously owned by Klaus Groove, sold by Venator and Hanstein, Cologne (dealers), 16 March 2018.)
Letter no:  DCP-LETT-4343F
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letter (39)
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1863 (4)
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1867 (2)
1868 (7)
1870 (2)
1871 (1)
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1873 (3)
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