The History of the Study of Landforms: Geomorphology before Davis

action Agassiz agency alluvial alluvium Alps American anticlinal appear Beche beds blocks bottom boulders Buckland cañon carried catastrophic catastrophists causes chalk channel Charles Lyell cliffs continued Conybeare currents declivity deluge denudation deposits detritus diluvial diluvialists diluvium drainage drift earth elevation eroded erosion erratics escarpments evidence excavation existing explain feet flood flow fluvial force formation Geikie Geol geological geologists geomorphology Gilbert glacial glacial theory glaciers gorge gradually gravel height hills Hutton Huttonian iceberg ideas James Hutton lakes land landscape later Lyell masses material miles moraines mountains Murchison nature Neptunist observations ocean origin pebbles period phenomena plain Playfair Powell present Principles processes produced rain Ramsay region ridges river rocks sand Scrope Sedgwick side slope stones strata stream structure subaerial surface synclinal terraces tion topography torrents transport transverse Uinta Mountains uniformitarian valleys velocity volcanic waves waves of translation Weald Werner