LANDGUARD-FORT, (Essex) seems to bel. to Suffolk, but is in the limits of Essex, and has a lovely prospect of the coasts of both Cos. It was erected, and is maintained for the defence of the port of Harwich over-against it; for it commands the entry of it, from the sea up the Maningtree-water and will reach any ship that goes in or out. It is placed on a point of land, so surrounded with the sea at high-water, that it looks like a little island at least 1 m. from the shore. The making its its foundation solid enough for so good a fortification cost many years labour, and a prodigious expence. It was built in the R. of K. James I. when it was a much more considerable fortification than now, having 4 bastions mounted with 60 very large guns, particularly those on the royal bastion, which would throw a 28 pound ball over Harwich. Here is a small garrison with a governor, and a platform of guns. This fort is now (1749) refitting and greatly enlarging, for the conveniency of the officers of ordnance, engineers, and matrosses; and a barrack is building for the soldiers, whose number is to be augmented. Col. Cracherode is the governor.