. The gaff is of spruce, 61 feet long and 9 inches diameter.

The bowsprit is of white pine, 38 feet long, 18 of which is outboard;
the remainder comes under the deck, is let in to each beam, and abuts
against the bitts: it is 24 inches diameter, and bored out like the
mast, from 10 inches diameter at the heel to 7 at the end. The jibboom
is made of two pieces of yellow pine, grooved out and hooped together;
it is about 70 feet long and about 8 inches in diameter; the foot of the
jib is laced to this spar on hooks (when required).

The mainsail is made with the seams horizontal, to avoid the resistance
perpendicular seams in so large a sail would offer to the wind. It has
been calculated that the resistance of perpendicular seams, in a sail of
this size, is equal to that of a plank 10 inches broad and 60 feet long,
placed on end broadside to the wind; the luff of the sail is 66 feet;
the foot, 93; the head, 50; the head and foot of the sail are laced to
battens under gaff and on boom; the luff is brought to the mast by a
contrivance as original as it is perfect; two battens are fixed on
afterpart of the mast, about an inch and a half apart, the inner parts
shod with iron, and rather broader than the exterior opening. To each
eyelet-hole of the sail a strong brass-plate is fixed, having 4 rollers
traversing fore and aft, and 2 transversely; these plates, as the sail
goes up, are slipped into the grooves of the battens, the rollers
preventing friction, and the battens keeping the luff fixed to the after
centre line of the mast--without this ingenious arrangement the huge
mast would, if on a wind, becalm at least three feet of the sail--three
lazy-jacks are fitted to support the huge mass of canvas when lowering
the sail.

The jib is 69 feet in the hoist, and 70 in the foot.

The bobstays are of solid iron, running 8 feet on each side of the keel,
and going through a strong iron cap over the bowsprit end, where, a
strong iron washer being put on, they are securely fixed with a nut.

It will be seen that there is a slight discrepancy between some of the
measurements which I have given, and those which are marked on the
print; I place confidence in those I have received direct from the
fountain-head; the difference is, however, so trifling, as scarce to
need any notice. I regret omitting to obtain the length of the
after-leech of the mainsail, and of the head of the jib; but I think the
print, which I believe to be very