From Daniel Mackintosh 14 October 1879
Summary
DM is highly gratified by CD’s opinion of his labours on boulders [see 12252]. He owes his start on this subject to CD. Since 1843 he has supported CD’s views on transportation of boulders by ice.
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 14 Oct 1879 |
Classmark: | DAR 171: 8 |
Letter no: | DCP-LETT-12257 |
From Daniel Mackintosh 15 January 1880
Summary
The violent stranding of floating ice as first mentioned in CD’s article ["Ancient glaciers of Caernarvonshire", Collected papers 1: 163–71] is the most remarkable of the Moel Tryfan phenomena.
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 15 Jan 1880 |
Classmark: | DAR 171: 9 |
Letter no: | DCP-LETT-12426 |
From Daniel Mackintosh 11 November 1880
Summary
Has found three zones of stones in the Welsh and Pennine mountains which he accounts for by elevation and subsidence. Does CD think that these movements in historical times have been caused by earthquakes or by slow and gradual movements?
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 11 Nov 1880 |
Classmark: | DAR 171: 10 |
Letter no: | DCP-LETT-12808 |
From Daniel Mackintosh 21 November 1880
Summary
The use of earthquakes as a geological cause in his previous letter was careless.
Shelly beach deposits over considerable distance from Ireland to Scotland seem better explained by high sea-level than low land.
Only CD seems to have reported shattered rocks under the Moel Tryfan drift.
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 21 Nov 1880 |
Classmark: | DAR 171: 11 |
Letter no: | DCP-LETT-12836 |
From Daniel Mackintosh 24 December 1880
Summary
Thanks for the American pamphlet, which has caused him to write the enclosed extract on "bent and shattered edges of slaty laminae".
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 24 Dec 1880 |
Classmark: | DAR 171: 12 |
Letter no: | DCP-LETT-12936 |
From Daniel Mackintosh 25 February 1882
Summary
Asks for CD’s opinion on certain theistic ideas. If spontaneous generation from inorganic material is denied, then life must be derived from some eternal being.
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 25 Feb 1882 |
Classmark: | DAR 171: 13 |
Letter no: | DCP-LETT-13708 |
From Daniel Mackintosh 1 December 1867
Summary
Seeks CD’s opinion and references on the causes of terraces in the south of England. He supports sea action as cause, either by currents or on coasts, and has been engaged in a controversy in the Geological Magazine [4 (1867): 571–5] with the subaerial school. Poulett Scrope thinks they are agricultural.
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 1 Dec 1867 |
Classmark: | DAR 171: 7 |
Letter no: | DCP-LETT-5703 |
From Daniel Mackintosh 8 December [1867]
Summary
Thanks CD for information on inclined terraces in S. America, which DM thinks applies to the chalk downs of S. England. CD’s definition that the sea widens and fresh water deepens is key to the subject.
Author: | Daniel Mackintosh |
Addressee: | Charles Robert Darwin |
Date: | 8 Dec [1867] |
Classmark: | DAR 171: 6 |
Letter no: | DCP-LETT-5711 |
letter | (8) |
Darwin, C. R. | (8) |
Mackintosh, Daniel | (8) |