To Frans Cornelis Donders 6 September 1869
Summary
Asks about Charles Bell’s statement concerning contraction of eye muscles. Asks whether such contraction is related to secretion of tears.
| Author: | Charles Robert Darwin |
| Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
| Date: | 6 Sept 1869 |
| Classmark: | American Philosophical Society (Mss.B.D25.) |
| Letter no: | DCP-LETT-6878 |
To F. C. Donders 7 July 1874
Summary
Asks about the effect of atropine on the eye. Is interested in parallel case: influence of phosphate of ammonia on glands of Drosera.
| Author: | Charles Robert Darwin |
| Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
| Date: | 7 July 1874 |
| Classmark: | DAR 143: 417 |
| Letter no: | DCP-LETT-9535 |
To F. C. Donders 15 July 1874
Summary
Discusses effect of atropine solution on eye,
and effect of phosphate of ammonia solution on gland of Drosera.
Would like to see work by T. W. Engelmann and possibly one by Dr De Ruyter.
| Author: | Charles Robert Darwin |
| Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
| Date: | 15 July 1874 |
| Classmark: | American Philosophical Society (Mss.B.D25.) |
| Letter no: | DCP-LETT-9547 |
From F. C. Donders 14 March 1871
Summary
Thanks CD for Descent.
Sends a copy of his oratio inauguralis on De harmonie van het dierlijke leven [1848] in which he espoused evolution, but did not see the influence of natural selection.
| Author: | Frans Cornelis (Franciscus Cornelius) Donders |
| Addressee: | Charles Robert Darwin |
| Date: | 14 Mar 1871 |
| Classmark: | DAR 162: 227 |
| Letter no: | DCP-LETT-7582 |
From F. C. Donders 12 July 1874
Summary
On hearing of CD’s work with Drosera, tells of his experiment showing extreme sensitivity of the iris of a dog’s eye to atropine. [See Insectivorous plants, p. 173.]
| Author: | Frans Cornelis (Franciscus Cornelius) Donders |
| Addressee: | Charles Robert Darwin |
| Date: | 12 July 1874 |
| Classmark: | DAR 58.1: 79–80 |
| Letter no: | DCP-LETT-9545 |
| letter | (5) |
| Darwin, C. R. | (3) |
| Donders, F. C. | (2) |
| Donders, F. C. | (3) |
| Darwin, C. R. | (2) |
