From Hugo de Vries 7 November 1875
Summary
Thanks for 2d edition of Climbing plants and for CD’s recognition of HdeV’s two essays on the subject [Climbing plants, pp. v–vi, 9 n., 22, 160]. Cause of spiral growth of tendrils.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 7 Nov 1875 |
Classmark: | DAR 180: 19 |
Letter no: | DCP-LETT-10248 |
From Hugo de Vries 17 November 1875
Summary
Hopes to continue study of climbing plants next summer and to observe facts mentioned in CD’s letter.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 17 Nov 1875 |
Classmark: | DAR 180: 20 |
Letter no: | DCP-LETT-10264 |
From Hugo de Vries 17 August 1878
Summary
Contraction of plant roots.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 17 Aug 1878 |
Classmark: | DAR 180: 21 |
Letter no: | DCP-LETT-11665 |
From Hugo de Vries 24 February 1879
Summary
Did not wish to imply that some leaves are insensitive to light, only that he could not measure their sensitivity. Contraction of roots seems common.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 24 Feb 1879 |
Classmark: | DAR 209.3: 336 |
Letter no: | DCP-LETT-11900 |
From Hugo de Vries 7 August 1879
Summary
Experiments to determine mechanism of tendril curvature; importance of variations in cell turgidity. Contraction in roots caused by increased turgor.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 7 Aug 1879 |
Classmark: | DAR 180: 22 |
Letter no: | DCP-LETT-12186 |
From Hugo de Vries 2 September 1879
Summary
Force of turgor is true cause of movement in plants. HdeV hopes to identify the substance which increases the cell’s water-absorbing power.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 2 Sept 1879 |
Classmark: | DAR 180: 23 |
Letter no: | DCP-LETT-12213 |
From Hugo de Vries 10 September 1879
Summary
Movement of tentacles of Drosera.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 10 Sept 1879 |
Classmark: | DAR 180: 24 |
Letter no: | DCP-LETT-12223 |
From Hugo de Vries 8 December 1880
Summary
Many thanks for Movement in plants; is especially interested in sensitivity of young seedlings.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 8 Dec 1880 |
Classmark: | DAR 180: 25 |
Letter no: | DCP-LETT-12897 |
From Hugo de Vries 15 October 1881
Summary
Thanks for Earthworms.
HdeV is studying the causes of variation in plants and is very interested in Pangenesis.
Author: | Hugo de Vries |
Addressee: | Charles Robert Darwin |
Date: | 15 Oct 1881 |
Classmark: | DAR 180: 26 |
Letter no: | DCP-LETT-13402 |
letter | (9) |
Darwin, C. R. | (9) |
Vries, Hugo de | (9) |