under the authority of law in the month of April yearly, to plant beach-grass, as elsewhere they are warned to repair the highways. They dug up the grass in bunches, which were afterward divided into several smaller ones, and set about three feet apart, in rows, so arranged as to break joints and obstruct the passage of the wind. It spread itself rapidly, the weight of the seeds when ripe bending the heads of the grass, and so dropping directly by its side and vegetating there. In this way, for instance, they built up again that part of the Cape between Truro and Provincetown where the sea broke over in the last century. They have now a public road near there, made by laying sods, which were full of roots, bottom upward and close together on the sand, double in the middle of the track, then spreading brush evenly over the sand on each side for half a dozen feet, planting beach-grass on the banks in regular rows, as above described, and sticking a fence of brush against the hollows.
The attention of the general government was first attracted to the danger which threatened Cape Cod Harbor from the inroads of the sand, about thirty years ago, and commissioners were at that time appointed by Massachusetts to examine the premises. They reported in June, 1825, that, owing to "the trees and brush having been cut down, and the beach-grass destroyed on the seaward side of the Cape, opposite the Harbor," the original surface of the ground had been broken up and removed by the wind toward the Harbor,—during the previous fourteen years,—over an extent of "one half a mile in breadth, and about four and a half miles in length."—"The space where a few years since were some of the highest lands on the Cape,
