Subject ASC0003sa9
The geological magazine, or, Monthly journal of geology.
[Decade 1]:v. 4 (1867), Page 250 (1867)
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
BHL Page 32512099
Keywords
white clay pebble bed glacial till ribden pit weaver hill boulder sand geology White-clays Sand Pebble Beds in the glacial till Ribden Pit Weaver Hills white-clays sands pebble beds glacial till ribden pit weaver hills boulder-clay porous lime mountain limestone north wales White-Clay Clay Sands Pebbles Pebble Beds Glacial Till Geology