The inaccessibility of the official Fighting Instructions from time to time issued to the fleet has long been a recognised stumbling-block to students of naval history. Only a few copies of them were generally known to exist; fewer still could readily be consulted by the public, and of these the best known had been wrongly dated. The discovery therefore of a number of seventeenth century Instructions amongst the Earl of Dartmouth's papers, which he had generously placed at the disposal of the Society, seemed to encourage an attempt to make something like a complete collection. The result, such as it is, is now offered to.