Transcriber’s Note:
A complex full-page chart, ‘TABULAR GEOLOGICAL PROFILE’, appeared as p. 3, in mid-paragraph, and has been moved slightly forward. It is presented here as a single image. The link provided below the chart will direct the reader to a text rendition, found at the end of the text.
There are also a number of large maps. Each one is represented in the text by reduced size version, with a [Larger view] link associated with it. This can be used to access a larger, more useful image.
In general, the position of illustrations have been adjusted slightly, where necessary, to avoid falling in mid-paragraph.
Minor errors in punctuation and formatting have been silently corrected. Please see the transcriber’s [note] at the end of this text for details regarding the handling of any textual issues encountered during its preparation.
THE
SUBTERRANEAN WORLD.
LONDON: PRINTED BY
SPOTTISWOODE AND CO., NEW-STREET SQUARE
AND PARLIAMENT STREET