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From Friedrich Hildebrand   26 July 1875

Summary

No new experiments on mutually sterile maize varieties since his paper in Botanische Zeitung in 1868.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  26 July 1875
Classmark:  DAR 166: 213
Letter no:  DCP-LETT-10094

From Friedrich Hildebrand   6 December 1876

Summary

Repeated maize crosses without success: i.e., in most cases yellow and red varieties did not produce fertile offspring.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  6 Dec 1876
Classmark:  DAR 166: 214
Letter no:  DCP-LETT-10701

From Friedrich Hildebrand   18 January 1877

Summary

Praise for Cross and self-fertilisation: most important point proved is benefit of crossing between related individuals grown under different conditions. This explains adaptive value of dispersal mechanisms.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  18 Jan 1877
Classmark:  DAR 166: 215
Letter no:  DCP-LETT-10803

From Friedrich Hildebrand   19 March 1877

Summary

Regrets he cannot help on Oxalis question. He did not note the names of species with cleistogamic flowers as he thought they were sufficiently known.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  19 Mar 1877
Classmark:  DAR 111: A84
Letter no:  DCP-LETT-10900

From Friedrich Hildebrand   4 December 1880

Summary

Preoccupied by reorganisation of Botanic Garden.

Regards to Francis Darwin.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  4 Dec 1880
Classmark:  DAR 166: 216
Letter no:  DCP-LETT-12888

From Friedrich Hermann Gustav Hildebrand   14 July 1862

Summary

Offers to translate Orchids, since H. G. Bronn has died.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  14 July 1862
Classmark:  DAR 166: 199
Letter no:  DCP-LETT-3658

From Friedrich Hildebrand   16 July 1863

Summary

He and L. C. Treviranus have repeated many of CD’s orchid observations with the same results. Sends his paper ["Fruchtbildung der Orchideen", Bot. Ztg. 21 (1863): 329–33, 337–45].

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  16 July 1863
Classmark:  DAR 166: 200
Letter no:  DCP-LETT-4242

From Friedrich Hildebrand   10 November 1863

Summary

Pleased CD has had his [FH’s] orchid paper published [Ann. & Mag. Nat. Hist. 3d ser. 12 (1863): 169–74].

Extension of CD’s Primula heterostyly work.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  10 Nov 1863
Classmark:  DAR 166: 201
Letter no:  DCP-LETT-4337

From Friedrich Hildebrand   21 June 1864

Summary

Studying insect pollination in Salvia

and heterostyly in Pulmonaria officinalis which is similar to Linum case.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  21 June 1864
Classmark:  DAR 166: 202
Letter no:  DCP-LETT-4542

From Friedrich Hildebrand   11 May 1866

Summary

Sending his paper on tristyly in Oxalis.

Cannot attend botanical congress, where CD will be vice-president.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  11 May 1866
Classmark:  DAR 166: 203
Letter no:  DCP-LETT-5087

From Friedrich Hildebrand   24 July 1866

Summary

Assures CD of his belief in descent from his first reading of Origin.

Describes a case of dichogamy.

Author:  Friedrich Hermann Gustav (Friedrich) Hildebrand
Addressee:  Charles Robert Darwin
Date:  24 July 1866
Classmark:  DAR 166: 204; DAR 49: 150
Letter no:  DCP-LETT-5166

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

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

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

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

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

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
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letter (20)
Author
Hildebrand, Friedrich[X]
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Correspondent
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1862 (1)
1863 (2)
1864 (1)
1866 (3)
1867 (1)
1868 (4)
1870 (1)
1872 (1)
1873 (1)
1875 (1)
1876 (1)
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