Take one “end-piece” of the box, and place it endways into the
bench-screw, and mark out the dovetails on the edge of the board
inside, then with your dovetail saw cut in into the marks down to the
lines squared over on the flat side. Then with a chisel cut out that
part of the wood that is crossed, and leave the other part, this being
the part which will form the pins or tails. Then take one side of your
box and lay it flat on the bench, the inside uppermost; then place the
end you have cut on it, keeping the edges flush, and mark round the
shape of the pins, which will leave their form on the side piece, the
black places being the mortices which are to be cut out. In cutting out
these you must be careful to cut within side of the stroke, so that the
mortices will be a little smaller than the pins, which will admit of
their being driven in quite tight, and will allow the glue to adhere to
them (for you have to glue these when you fix them). When you have thus
put the ends and sides together let them stand till the glue gets dry,
then take your planes and plane the quarter of an inch off the pins
which you allowed to be a little longer than the length of the box, and
you have then made the body of your box.