Having so begun firing, they shall always first play the largest guns, which are on the side or board towards the enemy, and likewise they shall move over from the other side those guns which have wheeled carriages to run on the upper part of the deck and poop.[11] And then when nearer they should use the smaller ones, and by no means should they fire them at first, for afar off they will do no hurt, and besides the enemy will know there is dearth of good artillery and will take better heart to make or abide an attack.  And after having come to closer quarters then they ought to play the lighter artillery.  And so soon as they come to board or grapple all the other kinds of arms shall be used, of which I have spoken more particularly:  first, missiles, such as harpoons [dardos] and stones, hand-guns [escopetas] and cross-bows, and then the fire-balls aforesaid, as well from the tops as from the castles, and at the same time the calthrops, linstocks, stink-balls [pildoras], grenades, and the scorpions for the sails and rigging.  At this moment they should sound all the trumpets, and with a lusty cheer from every ship at once they should grapple and fight with every kind of weapon, those with staffed scythes or shear-hooks cutting the enemy’s rigging, and the others with the fire instruments [trompas y bocas de fuego] raining fire down on the enemy’s rigging and crew.

The captain-general should encourage all in the battle, and because he cannot be heard with his voice he should bid the signal for action to be made with his trumpet or flag or with his topsail.

And he should keep a look-out in every direction in readiness, when he sees any of his ships in danger, to order the ships of reserve to give succour, if by chance they have not seen it, or else himself to bear in with his own ship.

The flagship should take great care not to grapple another, for then he could not see what is passing in the battle nor control it.  And besides his own side in coming to help and support him might find themselves out of action; or peradventure if any accident befell him, the rest of the fleet would be left without guidance and would not have care to succour one another, but so far as they were able would fly or take their own course.  Accordingly the captain-general should never be of the first who are to grapple nor should he enter into the press, so that he may watch the fighting and bring succour where it is most needed.

The ships of support in like manner should have care to keep somewhat apart and not to grapple till they see where they should first bring succour.  The more they keep clear the more will they have opportunity of either standing off and using their guns, or of coming to close range with their other firearms.  Moreover, if any ship of the enemy takes to flight, they will be able to give chase or get athwart her hawse, and will be able to watch and give succour wherever the captain-general signals.