The rearguard should be the ships that I have called the supports, which are to be the fourth part of the fleet, and the lightest and best sailers; but they must not move in rear of the fleet, because they would not see well what is passing so as to give timely succour, and therefore they ought always to keep an offing on that side or flank of the fleet where the flagship is, or on both sides if they are many; and if they are in one body they should work to station themselves to windward for the reasons aforesaid.

And if the fleet of the enemy shall come on in one body in line abreast,[9] ours should do the same, placing the largest and strongest ships in the centre and the lightest on the flanks of the battle, seeing that those which are in the centre always receive greater injury because necessarily they have to fight on both sides.

And if the enemy bring their fleet into the form of a lance-head or triangle, then ours ought to form in two lines [alas], keeping the advanced extremities furthest apart and closing in the rear, so as to take the enemy between them and engage them on both fronts, placing the largest ships in the rear and the lightest at the advanced points, seeing that they can most quickly tack in upon the enemy opposed to them.

And if the enemy approach formed in two lines [alas], ours ought to do the same, placing always the greatest ships over against the greatest of the enemy, and being always on the look-out to take the enemy between them; and on no account must ours penetrate into the midst of the enemy’s formation [batalla], because arms and smoke will envelope them on every side and there will be no way of relieving them.

The captain-general having now arrayed his whole fleet in one of the aforesaid orders according as it seems best to him for giving battle, and everything being ready for battle, all shall bear in mind the signals he shall have appointed with flag or shot or topsail, that all may know at what time to attack or board or come to rescue or retreat, or give chase.  The which signals all must understand and remember what they are to do when such signals are made, and likewise the armed boats shall take the same care and remember what they ought to do, and perform their duty.[10]

Chapter IV.—­Battle

Then the flagship shall bid a trumpet sound, and at that signal all shall move in their aforesaid order; and as they come into range they shall commence to play their most powerful artillery, taking care that the first shots do not miss, for, as I have said, when the first shots hit, inasmuch as they are the largest, they strike great dread and terror into the enemy; for seeing how great hurt they suffer, they think how much greater it will be at close range and so mayhap they will not want to fight, but strike and surrender or fly, so as not to come to close quarters.