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From John Tyndall 23 February [1871]
Summary
Has devised a respirator for firemen by moistening cotton wool with glycerine and adding charcoal. JT suggests the nose with its hairs and mucus is a respirator that would give protection against diseases caused by floating particles. The presence of hair and mucus is thus explained by CD’s theory.
| Author: | John Tyndall |
| Addressee: | Charles Robert Darwin |
| Date: | 23 Feb [1871] |
| Classmark: | DAR 106: C5–6 |
| Letter no: | DCP-LETT-7508 |
From John Tyndall 1 March [1871]
Summary
JT suggests that Ogle call upon him so that they can arrange experiments suitable for his purpose.
| Author: | John Tyndall |
| Addressee: | Charles Robert Darwin |
| Date: | 1 Mar [1871] |
| Classmark: | DAR 106: C7 |
| Letter no: | DCP-LETT-7527 |
From John Tyndall 8 March [1871]
Summary
Has seen Ogle. His subject [olfactory nerve tissue and absorption of odours] has often occupied JT’s attention.
| Author: | John Tyndall |
| Addressee: | Charles Robert Darwin |
| Date: | 8 Mar [1871] |
| Classmark: | DAR 106: C8 |
| Letter no: | DCP-LETT-7556 |
Document type
| letter | (3) |
Author
| Tyndall, John | (3) |
