On rounding Cape Kami-Saki, if bound for the city of Yedo, steer N. W. by N., until Perry island bears S. by W. ¾  W., so as to clear Saratoga spit, which extends well out from the eastern shore; then haul up, keeping Perry island upon this bearing until the beacon on the low point to the southward of Yedo bears W. N. W. This clears the shoal off the point, and here there is good anchorage in about ten fathoms water, in full view of the city of Yedo. At this point our survey terminated; the boats, however, found a clear channel, with plenty of water for the largest vessels, several miles farther to the northward, and within a few miles of the city. If bound to the American anchorage, from Cape Kami-Saki, steer N. W., and anchor in eight or ten fathoms water, with Perry island bearing S. S. E., and Webster island S. W. by S. To the southward of Webster island there is also good anchorage in six and seven fathoms. Near this anchorage, there are two snug coves, very accessible, in which vessels may conveniently repair and refit. Susquehanna bay, three miles W. N. W. from Cape Kami-Saki, is well sheltered, but it contains a number of reefs and rocks, and is therefore not recommended as an anchorage. Mississippi bay is four miles north of the American anchorage; it is well sheltered from the prevailing winds. Upon anchoring it is necessary to give the shore a wide berth, to avoid a shoal which extends out from half to three quarters of a mile. The conspicuous headland, or long yellow bluff, on the north side of this bay, is called Treaty point; a shoal surrounds the point from two thirds of a mile to a mile distant. Between the American anchorage and Treaty point, the soundings are irregular, shoaling suddenly from twelve to five fathoms on a bank of hard sand. To the northward of Treaty point, and N. N. W. from Cape Kami-Saki, distant fourteen miles, is Yokuhama bay. To reach this anchorage, bring the wooded bluff which terminates the high land on the north side of the bay to bear N. by W. ½  W., and steer for it until Treaty point bears S. W. by S.—(this clears the spit off the point); then haul up about N. W. by N. for the bluff over the town of Kanagawa, and anchor in five and a half or six fathoms, with the Haycock just open to the eastward of Mandarin bluff. Mandarin is the steep bluff a mile to the northward of Treaty point. A flat extends out from the northern shore of this bay, between Kanagawa and Beacon point from one to two miles; off Mandarin bluff there is also a shoal extending a mile to the northward. The bay of Yedo is about twelve miles wide, and thirty deep, with excellent holding-ground, and capable of sheltering the fleets of the world.