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Published online by Cambridge University Press: 01 May 2009
page 421 note 1 Communicated to Section C, British Association, Edinburgh, with the sanction of the Director-General of the Geological Survey.
page 422 note 1 Sir Richard Griffith has informed one of the authors that he was already aware of this fact, but had not published his observations.
page 422 note 2 Mr.Allport, S., Geological Magazine, Vol. VI., pp. 115 and 159.Google Scholar
page 423 note 1 Quart. Journ. Geol. Soc. vol. xii., p. 193.Google Scholar