British regional geology : Scotland : the Tertiary volcanic districts /

by Richey, J. E. (James Ernest), 1886-
Published 1935

Tertiary and post-Tertiary geology of Mull, Loch Aline, and Oban : a description of parts of sheets 43, 44, 51, and 52 of the geological map /

by Bailey, E. B. (Edward Battersby), 1881-1965
Published 1924