ending through the board, and at each end, distant a half-inch from
end of slot, cut a hole 1 inch long and half an inch wide. Nail this
plank down the centre of the boat, inside, nailing it securely and with
plenty of nails to the bottom boards, where the slot is cut in the plank
(keelson). Now, with a chisel, continue the slot through the bottom
boards. Take two pieces of wood 2-1/2 inches wide, 1-1/4 inches thick,
and 12-3/4 and 10-7/8 inches in length, respectively, and cut them at
one end, so that they will fit tightly in the little slots in keelson,
and put them in place, the shorter one nearest bow (No. 5) Cut out deck
beams B and C, fastening them at B and C, and knock away braces.

To get the curve of the deck beams A, B, and C (Fig. 2), we will take
curve of A. To proper scale draw a line equal to width of boat at A.
Measure height from gunwale to crown of deck at A, and draw a
perpendicular at centre of line equal to this distance. Describe an arc
touching the extremities of the line and passing through the top of the
perpendicular, and this arc is the curve desired.

[Illustration: DETAILS OF THE BOAT.]

We will now plank the centreboard trunk, and this should be done with
care, as there is nothing more annoying and troublesome than a leaky
trunk. Put in brace A, which is in two pieces, extending from each side
of trunk to gunwale. Nail on the keelson, alongside the board trunk, two
strips of wood, which will serve as braces for the trunk. At the top,
nail between A and B two strips of wood to support the top of trunk,
making the upper edges of these braces come half an inch above the deck
beams. Now fasten in the beams at sections 4 and 5, taking the curves of
the beams from the respective sections. Make mast step, and bolt it to
the middle of keelson. Take a piece of wood 2 feet 6 inches long, 6
inches wide, cut a hole in the centre of it, and shape and fit it in at
D (Fig. 2). This is to serve as the mast brace. Cut from a piece of
three-quarter-inch board two pieces of wood 3 feet 9 inches long and 2
inches thick, and fasten them between beams B and C, one on each side,
and eighteen inches from the centre of the boat. Put in deck beams 6, 7,
8, and 9 from gunwale to these frames, taking the curves for the
requisite length from the respective sections. Put in the rest of deck
beams. Now with half-inch boards plank the deck. Between 6 and 7, 8 and
9, on each side, fit in a piece of three-quarter-inch boar