and that makes part of the same, contains a description, in the words of the same Jacocks Swain, Henry Swain, and Joshua Swain themselves, of their new invented lee-board:
"The vessel that is intended to be built with a lee board through the bottom, the keel must be worked wide in the middle so as to give sufficient strength after the mortise is worked through for the lee board to pass; then there must be two pieces of timber worked the same thickness that the mortise is through the keel, and wide enough to be sufficiently strong, and one set at the forward end, the other at the after end of such mortise and let down into the keel two-thirds of the depth through, so as to stand on a square from the keel and bolted into the keel; then a rabbet is to be cut on each side of said mortise in the keel, of the same of the width thickness of the plank that is intended to plank up the sides of the sheath for said lee board, and deep enough into the keel to spike into the frame; then fit down a plank on each rabbet and spike them in the first mentioned timbers and the lower part of the sheath is formed, then after the floor ribbands of the vessel are run, then fit in knees enough on each side of said sheath to make it sufficiently strong, running from the floor heads to the aforesaid plank, from thence by plumb line high enough to tennant into a coming fitted into the beams, then when the deck frame is fit up, plank on each side to the deck, fitting the frame tight to beams; then in planking up the intermediate space plank may be trunneled on every other one, leaving one end of
