of the Instructions of 1782 (Article X.of 1799), providing for the formation of a _corps de reserve_ when you are numerically superior to the enemy, as was done by Villeneuve on Gravina's advice in 1805, although fortunately for Nelson it was not put in practice at Trafalgar.
The other addition appears in MS.

at the end of the printed signals.
It runs as follows: 'When at anchor in line of battle to let go a bower anchor under foot, and pass a stout hawser from one ship to another, beginning at the weathermost ship,' an addition which would seem to have been suggested by what had recently occurred at the Nile.
Nelson's own order was as follows: '_General Memorandum_ .-- As the wind will probably blow along shore, when it is deemed necessary to anchor and engage the enemy at their anchorage it is recommended to each line-of-battle ship of the squadron to prepare to anchor with the sheet cable in abaft and springs, &c.'[9] Another copy of the signal book has a similar MS.

addition to the signal 'Prepare for battle and for anchoring with springs, &c.'[10] It runs thus: 'A bower is to be unbent, and passed through the stern port and bent to the anchor, leaving that anchor hanging by the stopper only .-- Lord Nelson, St.
George, 26 March, 1801.

If with a red pennant over with a spring only .-- Commander-in-chiefs Order Book, 27 March, 1801.' These therefore were additions made immediately before the attack on the Danish fleet at Copenhagen.
No other change was made, and it may be said that Howe's new method of breaking the line was the last word on the form of attack for a sailing fleet.

How far its full intention and possibilities were understood at first is doubtful.