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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

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 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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Correspondent
Darwin, C. R.disabled_by_default
Hildebrand, Friedrichdisabled_by_default