To Francis Darwin [9 November 1881]
Summary
Tells some of his observations on root cells. Has thought of three good experiments to oppose Julius von Wiesner.
| Author: | Charles Robert Darwin |
| Addressee: | Francis Darwin |
| Date: | [9 Nov 1881] |
| Classmark: | DAR 211: 70 |
| Letter no: | DCP-LETT-13065 |
To Francis Darwin 9 November [1881]
Summary
Comments on two letters received from W. F. P. Pfeffer [13425, 13464] who thinks Julius Wiesner’s view that light, etc. acts directly on plants is wrong.
Is frantic over the number of letters received about worms; feels the enthusiasm of the reception of Earthworms is laughable.
Is confounded by Euphorbia rootlets and has re-examined the effect of carbonate of ammonia.
Has thought of three good experiments to oppose Wiesner.
| Author: | Charles Robert Darwin |
| Addressee: | Francis Darwin |
| Date: | 9 Nov [1881] |
| Classmark: | DAR 211: 70, DAR 211: 89 |
| Letter no: | DCP-LETT-13476 |
To Francis Darwin 14 November [1881]
Summary
Forwards a letter from W. F. P. Pfeffer, who opposes some of Julius Wiesner’s notions on plant movements.
| Author: | Charles Robert Darwin |
| Addressee: | Francis Darwin |
| Date: | 14 Nov [1881] |
| Classmark: | DAR 211: 90 |
| Letter no: | DCP-LETT-13485 |
From Francis Darwin [after 14 November 1881]
Summary
Thanks for two letters from Pfeffer. Will return translation of Pfeffer and send a letter from Elfring. Looking forward to working on "antiWiesner" experiments. Will return on 26th or 27th.
| Author: | Francis Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | [after 14 Nov 1881] |
| Classmark: | DAR 274.1: 68 |
| Letter no: | DCP-LETT-13485F |
| letter | (4) |
| Darwin, C. R. | (3) |
| Darwin, Francis | (1) |
