Another man who was assisting him, and who seemed to be a close observer of nature, hinted to me the locality of a rock in that neighborhood which was "forty-two paces in circumference and fifteen feet high," for he saw that I was a stranger, and, probably, would not carry it off. Yet I suspect that the locality of the few large rocks on the forearm of the Cape is well known to the inhabitants generally. I even met with one man who had got a smattering of mineralogy, but where he picked it up I could not guess. I thought that he would meet with some interesting geological nuts for him to crack, if he should ever visit the mainland, Cohasset or Marblehead, for instance.

The well stones at the Highland Light were brought from Hingham, but the wells and cellars of the Cape are generally built of brick, which also are imported. The cellars, as well as the wells, are made in a circular form, to prevent the sand from pressing in the wall. The former are only from nine to twelve feet in diameter, and are said to be very cheap, since a single tier of brick will suffice for a cellar of even larger dimensions. Of course, if you live in the sand, you will not require a large cellar to hold your roots. In Provincetown, when formerly they suffered the sand to drive under their houses, obliterating all rudiment of a cellar, they did not raise a vegetable to put into one. One farmer in Wellfleet, who raised fifty bushels of potatoes, showed me his cellar under a corner of his house, not more than nine feet in diameter, looking like a cistern; but he had another of the same size under his barn.

You need dig only a few feet almost anywhere near the shore of the Cape to find fresh water. But that which we tasted was invariably poor, though the inhabitants called it good, as if they were comparing it with salt water. In the account of Truro, it is said, "Wells dug near the shore are dry at low water, or rather at what is called young flood, but are replenished with the flowing of the tide," — the saltwater, which is lowest in the sand, apparently forcing the fresh up. When you express your surprise at the greenness of a Provincetown garden on the beach, in a dry season, they will sometimes tell you that the tide forces the moisture up to them. It is an interesting fact that low sand-bars in the midst of the ocean, perhaps even those which are laid bare only at low tide, are reservoirs of fresh water at which the thirsty mariner can supply himself. They appear, like huge sponges, to hold the rain and dew which fall on them, and which, by capillary attraction, are prevented from mingling with the surrounding brine.

The Harbor of Provincetown — which, as well as the greater part of the Bay, and a wide expanse of ocean, we overlooked from our perch — is deservedly famous. It opens to the south, is free from rocks, and is never frozen over. It is said that the only ice seen in it drifts in sometimes from Barnstable or Plymouth. Dwight remarks that "The storms which prevail on the American coast generally come from the east; and there is no other harbor on a windward shore within two hundred miles." J. D. Graham, who has made a very minute and thorough survey of this harbor and the adjacent waters, states that "its capacity, depth of water, excellent anchorage, and the complete shelter it affords from all winds, combine to render it one of the most valuable ship harbors on our coast." It is the harbor of the Cape and of the fishermen of Massachusetts generally. It was known to navigators several years at least before the settlement of Plymouth.