Cobble-stone

I walked on a couple of miles through the gloomy old town with houses eighty or a hundred feet high, the narrow sidewalks paved with cobble-stone, the common people taking the middle of the street.

Between were the cobble-stones of the Rue St. Martin and the clatter of innumerable feet.

He talked of diorites, trachytes, of triassic rocks, and calcareous veins till my brain reeled, and he finally left me with the impression that even the cobble-stone is not to be despised as a milling proposition.

The ground beneath her feet is extraordinarily smooth, as near as cobble-stones can get to parquetry; she imagines an army of paviours patiently completing it like a jigsaw puzzle while the placid citizens look on.