Sentence Examples

  • These prairies are traversed by ridges, which facilitate irrigation, and are underlaid by an impervious subsoil, which facilitates both effective storage and drainage.
  • Carolina on a loose porous sand, which must be at least a foot deep, and contains usually about 8% of clay; this sand is underlaid by a clay subsoil, and, as Mr Milton Whitney points out in Tobacco Soils (U.S.A. Dept.
  • The plains, except in the south-east corner, are underlaid by sheets of water-bearing sandstone, which carry a volume of water under such pressure that in the valleys of the James river and the Missouri river and its western tributaries a strong surface flow may be obtained from artesian wells.
  • The Great Plains.A broad stretch of country underlaid by nearly horizontal strata extends westward from the 97th meridian to the base of the Rocky Mountains, a distance of from 300 to 500 in., and northward from the Mexican, boundary far into Canada.
  • The following estimates rest upon the same authority: (I) total area underlaid by coal measures, 496,776 sq.

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