"Gault" Quotes from Famous Books
 ... CRETACEOUS.—Ignoring the Gault, which barely touches the county, this formation consists chiefly of Chalk-marl, Lower, Middle and Upper Chalk. A series of Chalk Downs, an extension of the Chiltern Hills, stretches, roughly speaking, from Tring to Royston, forming by far the most ...
— Hertfordshire • Herbert W Tompkins |
