The building and decorative stones of Maryland, containing an account of their properties and distribution (1898)
Merrill, George P. (George Perkins), 1854-1929, Mathews, Edward Bennett, b. 1869 · Baltimore, Johns Hopkins press · leaf 248
ode of weathering of the slates: In the fresh cuts made dur-ing the work of stripping, to open new quarries, the sound rock isoverlain by a variable thickness of ferruginous residual clay. Jointblocks and splinters of the slate scattered through this clay, in allstages of decomposition leave no… … FiG. i.-YoUK .\.\]l IKAGilliuTruM UL:A1:UY, CAMBltlA.
Stone · Building stones
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
