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A Topographical Dictionary of Wales
… Gam Prenteg and the Gorllwyn are interesting to the geologist, as exhibiting manifest indications of a volcanic …
Magna Britannia
… and angular, open an abundant field of instruction to the geologist; while they present difficulties, of which neither …
Survey of London
… 18011804, Captain Allen Cooper. 18291831, Leonard Horner, geologist and warden of University College. 18401842, Charles …
A Topographical Dictionary of England
… sulphur, and various mineral substances interesting to the geologist, have been discovered. A church, dedicated to the …