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Rh who has once taken up his position and fixed himself when quite young, can never make a change. Oysters, nevertheless, that have not fixed themselves, but remain loose at the bottom of the sea, have the power of locomotion; they open their shells to their fullest extent, and then suddenly contracting them, the expulsion of the water forwards gives a motion backwards. A fisherman at Guernsey told me that he had frequently seen oysters moving in this way."

Some still entertain the question "whether the oyster was indigenous in Massachusetts Bay," and whether Wellfleet harbor was a "natural habitat" of this fish; but, to say nothing of the testimony of old oystermen, which, I think, is quite conclusive, though the native oyster may now be extinct there, I saw that their shells, opened by the Indians, were strewn all over the Cape. Indeed, the Cape was at first thickly settled by Indians on account of the abundance of these and other fish. We saw many traces of their occupancy after this, in Truro, near Great Hollow, and at High-Head, near East Harbor River,—oysters, clams, cockles, and other shells, mingled with ashes and the bones of deer and other quadrupeds. I picked up half a dozen arrow-heads, and in an hour or two could have filled my pockets with them. The Indians lived about the edges of the swamps, then probably in some instances ponds, for shelter and water. Moreover, Champlain in the edition of his "Voyages" printed in 1613, says that in the year 1606 he and Poitrincourt explored a harbor (Barnstable Harbor?) in the southerly part of what is now called Massachusetts Bay, in latitude 42°, about five leagues south, one point west of Cap Blanc (Cape Cod), and there they found many good oysters, and they named it