On the recent discovery of silurian rocks in Hertfordshire
Subtitle: and their relation to the water-bearing strata of the London basin
By: by John Hopkinson....
Publisher: s.n.
Published: 1880
Place of publication: [Hertford
Language: eng
Number of pages: 248
Subjects: Geology, Stratigraphic -- Silurian.
Notes: From head of title: "[From the 'Transactions of the Watford Natural History Society' Vol.II, Part 7, April 1880]".

Caption title.