Summary

Asks to call on RC.

Summary

Comments on David Milne’s paper ["On the parallel roads of Lochaber" (1847), Trans. R. Soc. Edinburgh 16 (1849): 395–418]. CD still believes in marine origin. Rejects barrier of detritus at mouth of Glen Roy. If roads were formed by lake, it must have been ice-lake.

Comments on evidence of glaciers and icebergs in North Wales. Thinks pass caused by tidal channel, not river. Suggests that RC make altitude measurements at various points.

Summary

Thanks RC for information on hand-level; he has recommended it in his "Instructions" ["Geology", Collected papers 1: 227–50].

Summary

Congratulates RC on his work on Scottish sea-margins [Ancient sea-margins (1848)].

Discusses Glen Roy; Milne staggered him in favour of the glacier view, but now his opinion has reverted.

Summary

Since his previous letter, has unexpectedly arranged to go to London next Tuesday.

Hopes to call on recipient.

Summary

Thanks RC for "Ice and water" [in RC’s Edinburgh papers (1861)].

Comments on problem of scientific accuracy.

Discusses views of Thomas Davidson on the genealogy of brachiopods.

Summary

Supposition that glaciers made Glen Roy is a dream. Has received three letters from CD on river terraces. Reports on trip to terraces at Belleville. Comparison with Glen Roy.