My house was on the side of a hill, immediately on the edge of the larger wood, in the midst of a young forest of pitch pines and hickories, and half a dozen rods from the pond, to which a narrow footpath led down the hill.
In well-equipped waterworks each house service pipe is controlled by a stop-cock accessible from the footpath to the officials of the water authority, and the process of waste detection by this method depends upon the manipulation of such stop-cocks in conjunction with the differentiating meter.
In some of the Arsacides they are used for beams whereon to lay footpath bridges over small streams.
The inspector proceeds along the footpath from house to house, and outside each house he closes the stop-cock, recording opposite the number of each house the exact time of each such operation.
And the total roadway length 1000 ft.; the height of the roadway from the spring tide high-water level is loo ft.; the breadth of the roadway including two carriage-ways and a footpath is 30 ft.
The original road was no doubt only gravelled (glarea strata); in 298 B.C. a footpath was laid saxo quadrato from the Porta Capena, by which it left Rome, to the temple of Mars, about 1 m.