RECORD: Darwin, C. R. [1847]. [Abstract of Milne-Home, On the parallel roads of Lochaber.] CUL-DAR50.C28-C29. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2021. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.

Milne-Home, D. 1847. On the parallel roads of Lochaber; with remarks on the change of relative levels of sea and land in Scotland, and on the detrital deposits in that country. Edinburgh, 54pp. Darwin's lightly annotated copy is in CUL-DAR139.5.1.


[C28]

At this great height

Where did water come from in old Water courses

How does he distinguish tides [way] from river-course

Muckul sides water-worn 30 ft up rocky islet in middle. - 21 ft deep 70 wide.

{Are the rocks in Glen Glastrig smooth westward all way up th valley of 212 ft - if so patent - are they scratched? or polished.

p. 10 Mr Darwin supposes water swept rapidly

p. 11 Barrier at Gap.

13. states that I consider Glen Roy filled up to level of shelf 4.!!! the buttresses prove the contrary.

p 15 Boulder formation - roads cross it.

19 facts make me believe Glaciers agency

do Multitude of blocks on level of shelf 4. near Loch Treig

p 20 number of lakes strange - terraces in stages

[C28v]

Lakes on soft shores fill up not eat into.

Loch Tulla 474 [+] 540 [=] 1014

if Bravais right not only absolute, but intermediate height wd be different, at different places. - measures rude.

Lakes successively drained.

p 24 sudden depressions quite unaccounted for in other cases.

p 24. {Haughs I do not doubt fr. S. America are marine.

Lake gradually drained is a great advantage in his theory

[C29]

Glen Gluoy given up.

aspect cannot explain precise causes.

[C29v]

Against ice Glen Gluoy terrace [illeg] height against my theory

Land strictly above level of roads

Buttresses at all levels - immense duration of lakes - boulders from a distance? water scooping at L. Treig // Kilfinnin Has I believe // Boulder clay - Phenomenon occurring elsewhere = Several other lakes? gradual drying away of terraces - generality of the phenomenon - Haugh not explained. I do not know whether glacier cd block up Glen Gluoy & Kilfinnin

I cannot conceive drawing so slow over ice & from [illeg] Tombril terraces, as to form [illeg] in former case & shelf in latter.

Lake not round path cut off rock

size of escapes from lakes


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

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