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Mackintosh, Daniel in correspondent 
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From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
1 Dec 1867
Source of text:
DAR 171: 7
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.

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
8 Dec [1867]
Source of text:
DAR 171: 6
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Daniel Mackintosh
Date:
9 Oct 1879
Source of text:
DAR 146: 333
Summary:

Comments on DM’s ["Drift deposits of west of England", Q. J. Geol. Soc. Lond. 35 (1879): 425–55].

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
14 Oct 1879
Source of text:
DAR 171: 8
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Daniel Mackintosh
Date:
16 Oct 1879
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:

DM may show CD’s letter [to the Royal Society].

Pleased that his old paper should have stimulated DM to such excellent work.

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
15 Jan 1880
Source of text:
DAR 171: 9
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.

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
11 Nov 1880
Source of text:
DAR 171: 10
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?

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Daniel Mackintosh
Date:
13 Nov 1880
Source of text:
DAR 146: 334
Summary:

Comments on DM’s ["The Moel-Tryfan shelly deposits", Q. J. Geol. Soc. Lond. 37 (1881): 351–69].

Comments on cause of earthquakes.

Believes formation of ice lowered level of sea.

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
21 Nov 1880
Source of text:
DAR 171: 11
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Daniel Mackintosh
Date:
21 Dec 1880
Source of text:
Christie’s, New York (dealers) (9 June 1999)
Summary:

The recipient is thanked for his "interesting letter".

CD sends an article received from [James Geikie?]. "You will see that it is important to know whether the laminae of slate have ever been bent up-hill."

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
24 Dec 1880
Source of text:
DAR 171: 12
Summary:

Thanks for the American pamphlet, which has caused him to write the enclosed extract on "bent and shattered edges of slaty laminae".

Contributor:
Darwin Correspondence Project
From:
Daniel Mackintosh
To:
Charles Robert Darwin
Date:
25 Feb 1882
Source of text:
DAR 171: 13
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Daniel Mackintosh
Date:
28 Feb 1882
Source of text:
DAR 146: 335
Summary:

Comments on James Geikie’s ["Intercrossing of erratics", Scottish Naturalist 6 (1882): 193–200, 241–54]. Believes JG underrates importance of floating ice in explaining drift deposits.

Comments on origin of life and natural theology.

Recommends William Graham’s The creed of science [1881].

Contributor:
Darwin Correspondence Project