CLAY n.
ting of the oxide or carbonate of iron mixed with clay or sand. -- Clay marl, a whitish, smooth, chalky clay. -- Clay mill, a mill for mixing and tempering clay; a pug mill. -- Clay pit, a pit where clay is dug. -- Clay slate (Min.), argillaceous schist; argillite. -- Fatty clays, clays having a greasy feel; they…
COMPASS n.
pass plane (Carp.), a plane, convex in the direction of its length on the under side, for smoothing the concave faces of curved woodwork. -- Compass plant, Compass flower (Bot.), a plant of the American prairies (Silphium laciniatum), not unlike a small sunflower; rosinweed. Its lower and root leaves are vertical, and…