To John Denny 14 July [1872]
Summary
Discusses JD’s crossing experiments with Pelargonium; notes that his conclusions on male prepotence oppose those of Gärtner. Suggests that his observations on differences in fertility of certain varieties of Pelargonium crossed with certain other varieties be communicated to the Linnean Society.
| Author: | Charles Robert Darwin |
| Addressee: | John Denny |
| Date: | 14 July [1872] |
| Classmark: | DAR 96: 114–15 |
| Letter no: | DCP-LETT-8410 |
Matches: 5 hits
- … between this letter and the letter from John Denny, 12 July 1872 . Denny had sent …
- … pelargonium as Peltatum elegans . See letter to John Denny, 9 July 1872 and n. 2. In …
- … see Curle 1954 , p. 26). See letter from John Denny, 12 July 1872 . For a brief account …
- … John Denny, 12 July 1871 and n. 9. CD had suggested that the Ray Society translate Gärtner 1849 (see Correspondence vol. 12, letter …
- … John Denny, 12 July 1872 and n. 5). CD later cited this paper in Cross and self fertilisation , p. 142. In Denny 1872b , Denny described the methods of keeping written records as well as the tools required when cross-breeding pelargoniums by artificial fertilisation. See letter …
From John Denny 20 July 1872
Summary
Thanks CD for his offer to communicate the results of his experiments with Pelargonium to the Linnean Society. Prefers to continue experimenting for at least another season before doing so.
| Author: | John Denny |
| Addressee: | Charles Robert Darwin |
| Date: | 20 July 1872 |
| Classmark: | DAR 162: 160 |
| Letter no: | DCP-LETT-8421 |
Matches: 6 hits
- … See letter to John Denny, 14 July [1872] . Denny 1872a …
- … botanical characters (see also letter from John Denny, 12 July 1872 , n. 2). The scarlet …
- … letter has long since tired you out | Believe me | Dear Sir | to remain yours faithfully | John Denny …
- … Congress (see letter to John Denny, 9 July 1872 and n. 1). See letter to John Denny, 14 …
- … John Denny, 14 July [1872] . William Turner Thiselton-Dyer had presumably been asked to prepare the translation of Gärtner 1849 for the Ray Society (see also letter …
- … John Denny, 14 July [1872] and n. 5). No translation of Gärtner’s work was published. At a meeting of 17 July 1872, the Scientific Committee of the Royal Horticultural Society responded to Acton Smee Ayrton’s interference with the running of the Royal Botanic Gardens at Kew by resolving to support the director, Joseph Dalton Hooker , in ‘his efforts to maintain unimpaired the scientific character of Kew’ ( Journal of the Royal Horticultural Society of London n.s. 4 (1877): xxx). It was further resolved that the committee would also support the memorial that was sent to William Ewart Gladstone (see letter …
To John Denny 22 July 1872
Summary
Discusses the mutual sterility of some varieties of Pelargonium.
| Author: | Charles Robert Darwin |
| Addressee: | John Denny |
| Date: | 22 July 1872 |
| Classmark: | University of Otago Library, Special Collections (DeB MS 55) |
| Letter no: | DCP-LETT-8423 |
From John Denny 12 July 1872
Summary
Replies to CD’s queries. Duke of Cornwall Pelargonium is fertile with its own pollen. Has failed to produce hybrids from other varieties besides P. peltatum and P. elegans. Sends numbers of the Florist which contain an account of his mode of procedure ["On cross-breeding pelargoniums" Florist & Pomologist (1872): 10, 34, 50].
Reports a confirmation of his theory of the prepotence of the male parent.
| Author: | John Denny |
| Addressee: | Charles Robert Darwin |
| Date: | 12 July 1872 |
| Classmark: | DAR 162: 159 |
| Letter no: | DCP-LETT-8407 |
Matches: 3 hits
- … See letter to John Denny, 9 July 1872 and n. 1. See letter to John Denny, 9 July 1872 …
- … or pollen) parent, see Denny 1872b , p. 50, and the letter to John Denny, 9 July 1872 …
- … Denny specialised in breeding zonal pelargoniums ( Wilkinson 2007 , p. 177). CD had recommended that Denny read Gärtner 1844 and Gärtner 1849 (see letter to John …
From M. T. Masters 4 November 1872
Summary
Asks CD’s opinion of John Denny’s idea that males have prepotent transmission power in plants. A. J. F. Wegmann says the females are prepotent.
| Author: | Maxwell Tylden Masters |
| Addressee: | Charles Robert Darwin |
| Date: | 4 Nov 1872 |
| Classmark: | DAR 171: 83 |
| Letter no: | DCP-LETT-8597 |
From John Denny 16 August 1879
Summary
JD communicates, after seven years, news of a new "sport" of Pelargonium, sterile both with other varieties and with the mother plant, thus indicating that it is possibly a new species.
| Author: | John Denny |
| Addressee: | Charles Robert Darwin |
| Date: | 16 Aug 1879 |
| Classmark: | DAR 162: 161 |
| Letter no: | DCP-LETT-12195 |
From William Cooper 21 September 1872
Summary
Requests financial support for horticultural researches, which, he promises, will enormously increase yields.
| Author: | William Cooper |
| Addressee: | Charles Robert Darwin |
| Date: | 21 Sept 1872 |
| Classmark: | DAR 161: 223 |
| Letter no: | DCP-LETT-8530 |
| letter | (7) |
| Denny, John | (3) |
| Darwin, C. R. | (2) |
| Cooper, William | (1) |
| Masters, M. T. | (1) |
| Darwin, C. R. | (5) |
| Denny, John | (2) |
| Darwin, C. R. | (7) |
| Denny, John | (5) |
| Cooper, William | (1) |
| Masters, M. T. | (1) |
