From F. C. Donders 17 May 1870
Summary
The illness and death of his daughter have delayed his answers to CD’s queries. He has, however, worked on the circulation of the eye and has almost finished a paper on it, which he will send to CD. In general, the views of Charles Bell are confirmed.
As for CD’s second query, he doubts that the relationship exists, but will answer fully in next letter.
Author: | Frans Cornelis (Franciscus Cornelius) Donders |
Addressee: | Charles Robert Darwin |
Date: | 17 May 1870 |
Classmark: | DAR 162: 224 |
Letter no: | DCP-LETT-7141 |
To Frans Cornelis Donders 13 May [1870]
Summary
In a fortnight will begin to arrange notes on expression. Asks for FCD’s conclusions about the contraction of eye muscles. Is interested in abstract of FCD’s experiments on "rate of travelling of the nervous powers".
Author: | Charles Robert Darwin |
Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
Date: | 13 May [1870] |
Classmark: | American Philosophical Society (Mss.B.D25.) |
Letter no: | DCP-LETT-7187 |
To F. C. Donders 19 May 1870
Summary
Expresses sympathy [on death of FCD’s daughter].
Will be grateful for his paper and letter.
Author: | Charles Robert Darwin |
Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
Date: | 19 May 1870 |
Classmark: | American Philosophical Society (Mss.B.D25.) |
Letter no: | DCP-LETT-7194 |
From F. C. Donders 27 May 1870
Summary
Has finished the article [on the action of the eyelids in Ned. Arch. Geneeskd. & Natuurkd. 5 (1870), also see 7238]; summarises: the occlusion of the eyelids protects the vessels, and the eye itself, against the danger of pressure caused by excessive expiratory action. The weakness of the conclusion is that the extent of the danger caused by the pressure to the normal state of the eye is not precisely known.
Author: | Frans Cornelis (Franciscus Cornelius) Donders |
Addressee: | Charles Robert Darwin |
Date: | 27 May 1870 |
Classmark: | DAR 162: 225 |
Letter no: | DCP-LETT-7203 |
From F. C. Donders 28 May 1870
Summary
A detailed description of the physiological and anatomical processes related to the prolonged involuntary contraction of the orbicular muscles and the secretion of tears (as in retching, violent coughing, or laughing). [See Expression, p. 160.].
Author: | Frans Cornelis (Franciscus Cornelius) Donders |
Addressee: | Charles Robert Darwin |
Date: | 28 May 1870 |
Classmark: | DAR 162: 226 |
Letter no: | DCP-LETT-7207 |
To F. C. Donders 3 June [1870]
Summary
Thanks FCD for information.
Hopes that translation of his paper will appear in Dublin Journal.
Notes experience of his son [Leonard Darwin] on engorgement of eyes with blood. Discusses secretion of tears when eye muscles are involuntarily contracted.
Author: | Charles Robert Darwin |
Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
Date: | 3 June [1870] |
Classmark: | American Philosophical Society (Mss.B.D25.) |
Letter no: | DCP-LETT-7215 |
To F. C. Donders 21 June 1870
Summary
Comments on translation of FCD’s paper ["On the action of the eyelids", Arch. Med. 5 (1870): 20–38].
Speculates that closing eyelids may protect eyes from vibrations.
Discusses publication of Expression.
Author: | Charles Robert Darwin |
Addressee: | Frans Cornelis (Franciscus Cornelius) Donders |
Date: | 21 June 1870 |
Classmark: | American Philosophical Society (Mss.B.D25.) |
Letter no: | DCP-LETT-7238 |
letter | (7) |
Darwin, C. R. | (4) |
Donders, F. C. | (3) |
Donders, F. C. | (4) |
Darwin, C. R. | (3) |
Darwin, C. R. | (7) |
Donders, F. C. | (7) |