To Charles William Crocker 18 May [1861]
Summary
Describes results of his experiments with hollyhocks. Some varieties breed true even though growing near others. This suggests that their pollen is "pre-potent" over that of other varieties, which is not the case with most plants. Asks some questions on which he would be glad to have correspondent work. [See also 3170.]
Author: | Charles Robert Darwin |
Addressee: | Charles William Crocker |
Date: | 18 May [1861] |
Classmark: | Cleveland Health Sciences Library (Robert M. Stecher collection) |
Letter no: | DCP-LETT-3151 |
To C. W. Crocker 1 June [1861]
Summary
Suggests procedures for breeding experiments with hollyhocks. Recommends C. F. v. Gärtner [Bastarderzeugung (1849)]. [See also 3151]
Author: | Charles Robert Darwin |
Addressee: | Charles William Crocker |
Date: | 1 June [1861] |
Classmark: | American Philosophical Society (Mss.B.D25.251) |
Letter no: | DCP-LETT-3170 |
To Charles William Crocker 31 January [1864]
Summary
Reminds CWC that he offered to give information with respect to his observations on hollyhocks. Wishes he could persuade CWC to undertake experiments on the fertility of some crosses between the most distinct varieties.
Author: | Charles Robert Darwin |
Addressee: | Charles William Crocker |
Date: | 31 Jan [1864] |
Classmark: | Cleveland Health Sciences Library (Robert M. Stecher collection) |
Letter no: | DCP-LETT-3425 |
From Charles William Crocker 17 February 1862
Summary
Thanks for Primula paper [Collected papers 2: 45–63].
Separation of sexes in Billbergia.
Offers to experiment under CD’s direction, now that he has retired from Kew.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 17 Feb 1862 |
Classmark: | DAR 161.2: 254 |
Letter no: | DCP-LETT-3449 |
From C. W. Crocker [before 13 March 1862]
Summary
Will experiment on hollyhocks as CD suggests.
On desirability of a place for experiments to be set up by Government or a scientific society. Kew is too busy for experiments.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | [before 13 Mar 1862] |
Classmark: | DAR 161.2: 255 |
Letter no: | DCP-LETT-3464 |
From C. W. Crocker 13 March 1862
Summary
Informs CD where, at Kew, to find Epipactis palustris.
Has never trusted Donald Beaton.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 13 Mar 1862 |
Classmark: | DAR 161.2: 256 |
Letter no: | DCP-LETT-3471 |
From C. W. Crocker 22 April 1862
Summary
Certain there are three forms of Primula sinensis.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 22 Apr 1862 |
Classmark: | DAR 161.2: 257 |
Letter no: | DCP-LETT-3514 |
From C. W. Crocker 17 May 1862
Summary
Comments on presentation copy of Orchids. Has CD studied the orchid Sobralia?
Cannot get material for hollyhock experiment.
Sends his notes on Primula sinensis.
He is experimenting on Ranunculus.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 17 May 1862 |
Classmark: | DAR 108: 133, DAR 161.2: 258 |
Letter no: | DCP-LETT-3557 |
From C. W. Crocker 31 October 1862
Summary
Difficulties in beginning experiments upon retirement.
Describes his observations on insect pollination of Antirrhinum and the effect of excluding the pollinators.
Has been observing variant forms of Plantago
and comparing local orchids with CD’s observations.
Possibility of an intermediate-styled primrose.
His experiments at Kew and J. B. Lawes’s at Harpenden on deterioration of vegetables and cereals.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 31 Oct 1862 |
Classmark: | DAR 76 (ser. 2): 84a–d |
Letter no: | DCP-LETT-3790 |
From C. W. Crocker 24 November 1862
Summary
Answers on Begonia.
Snapdragon crossing experiments.
Thanks for offer of plants.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 24 Nov 1862 |
Classmark: | DAR 161.2: 259 |
Letter no: | DCP-LETT-3824 |
From Charles William Crocker 1[–4] May 1863
Summary
Observes Plantago’s out-crossing mechanism.
Observations of style lengths of primroses and cowslips.
Author: | Charles William Crocker |
Addressee: | Charles Robert Darwin |
Date: | 1[–4] May 1863 |
Classmark: | DAR 110: 28, DAR 161: 260 |
Letter no: | DCP-LETT-4135 |
letter | (11) |
Crocker, C. W. | (8) |
Darwin, C. R. | (3) |
Darwin, C. R. | (8) |
Crocker, C. W. | (3) |