Note 104 — Chapter VII · LONDON AND CAMBRIDGE. 1836-1842.
Reading edition
Sir Archibald Geikie has been so good as to allow me to quote a passage from a letter addressed to me (Nov. 19, 1884):—"Had the idea of transient barriers of glacier-ice occurred to him, he would have found the difficulties vanish from the lake-theory which he opposed, and he would not have been unconsciously led to minimise the altogether overwhelming objections to the supposition that the terraces are of marine origin."
It may be added that the idea of the barriers being formed by glaciers could hardly have occurred to him, considering the state of knowledge at the time, and bearing in mind his want of opportunities of observing glacial action on a large scale.