arrying on the service: but it is to be of his own squadron or
division in preference when equally suitable for his purpose.

XX. The flag officers, or commanders of divisions, are on all
occasions to repeat generally, as well as with reference to their
respective divisions, the signals from the admiral, that they may be
thereby more speedily communicated correspondent to his intentions.

And the purpose of all signals for the conduct of particular divisions
is then only meant to be carried into execution when the signal has
been repeated, or made by the commanders of such particular divisions
respectively. In which circumstances they are to be always regarded
and complied with by the ships or divisions referred to, in the same
manner as if such signals had been made by the admiral commanding in
chief.

XXI. When ships have been detached to attack the enemy's rear, the
headmost ship of such detachment, and the rest in succession, after
having ranged up their line as far is judged proper, is then to fall
astern; and (the ship that next follows passing between her and the
enemy) is to tack or wear as engaged to windward or leeward, and form
in the rear of the detachment.

XXII. When the fleet is to tack in succession, the ship immediately
following the one going in stays should observe to bear up a little,
to give her room; and the moment for putting in stays is that when a
ship discovers the weather quarter of her second ahead, and which has
just tacked before her.

On this and every other occasion, when the fleet is in order of
battle, it should be the attention of each ship strictly to regulate
her motions by those of the one preceding her; a due regard to such a
conduct being the only means of maintaining the prescribed distance
between the ships, and of preserving a regular order throughout the
line.

XXIII. As soon as the signal is made to prepare for battle, the
fireships are to get their boarding grapnels fixed; and when in
presence of an enemy, and that they perceive the fleet is likely to
come to action, they are to prime although the signal for that purpose
should not have been made; being likewise to signify when they are
ready to proceed on service, by putting abroad the appointed signal.

They are to place themselves abreast of the ships of the line, and not
in the openings between them, the better to be sheltered from the
enemy's fire, keeping a watchful eye upon the admiral, so as to be
prepared t