"Overlie" Quotes from Famous Books
 ... softened, pressure alone will force them into a cavity, as is shown by the fact that beds of tolerably hard clay stones in deep coal mines may be forced into the spaces by the pressure of the rocks which overlie them—in fact, the expense of cutting out these in-creeping rocks is in some British mines a serious item in the cost of ...
— Outlines of the Earth's History - A Popular Study in Physiography • Nathaniel Southgate Shaler |
