It will be seen from the plate of numeral flags that Howe's numerals were continued in the 1799 book with only two slight modifications: No. 1, instead of being a plain red flag, became yellow, red, yellow, in three equal horizontal stripes, and the substitute became plain white. But his arrangement was simplified. The half black and white flags were done away with as unnecessary, since their meanings could equally well be expressed by those remaining. In addition to the signal book, each commander-in-chief compiled for his own fleet a tabular "pendant board," on which two pendants were assigned to the name of each ship of his fleet. By this means he was enabled to address any of the signals to a particular ship, without making the command general to the whole squadron. For example, Nelson, at Trafalgar, before making general his favourite signal, "Engage the enemy more closely," addressed it particularly to the 'Africa,' which, having become separated over night, found herself at a distance from the two columns, and, just before the commencement of the action, was sailing near to the enemy's van, on an opposite and parallel course. This he did by hoisting flags Nos. 1 and 6, together with the pendants appropriated to the 'Africa's' name on the "pendant board." But a code for signalling or other purposes is like a language; if the language is what we call "dead," i.e. if words have ceased to be added to it, it is of little use for expressing every-day needs. Similarly, if the navy is not stagnating, continual amplification of tactics or of every-day details necessitates an increase in the range of conversation between the Admiral and his fleet. Although at the time of the battle of Trafalgar the signal book was only six years old, it had already had its range of signals increased by upwards of 80 additions, made in manuscript, on such varied matters as: 412. "The ships or vessels chased have separated on different courses." 280. "Send for fresh beef immediately." 291. "Engage the enemy as close as possible." This last is the third signal provided for close engagement, the others being "Engage the enemy more closely," expressed either by No. 16 (the signal Nelson favoured), or by the red pendant over the quarter-red and white flag. The need for a more flexible method of communication than that of set sentences had long been felt. Rodney and Howe had both found it impossible, in face of the enemy, to make their instructions clear to their captains, and even without this distraction, in bad weather, when ships could not get near enough for the voice to carry from one to another even with the assistance of the speaking trumpet, or when the roar of the gale rendered speech of no avail except within a range of a very few feet, while the launching of a boat was out of the question, much inconvenience had often been felt. Even when verbal communication was possible, much time was lost in closing near enough to make it.