We then have certain subsidiary pendant signals, of which the most important are: a chequered blue and yellow pendant to denote that accompanying numeral flags represented figures only, and a quartered red and white pendant to serve the purpose of a note of interrogation.
Now follow nine signals made with sails and guns, a quaint survival that disappears in 1799 [Except No. 1. This was No. 174 of the '99 Code, but could be made by the fore topsail if desired.] The following are their purports:
1. "To prepare for sailing," denoted by loosing the fore topsail, just as in Rooke's Instructions of 1703. 2. Every one to repair to his respective ship. 3. Recalling ships. 4. Unmoor. 5. Weigh. 6. Moor (denoted by "Main topsail loose in top"). 8. Cut or slip. 9. Fast on shoal.
We next have 14 signals for calling officers to take orders, made with the Union flag in different positions; a few signals to fireships, made with the yellow flag; 20 fog signals made with guns; and then the tabular signals for private ships. The "table" provided for these shows a slight variation on the usual form. It is not quite square, being 8 wide and 9 deep, as the first flag space on the left side is blank, so that the first row 1 to 8 is made by single flags. The flags used are:
1. Red.
2. Blue.
3. White over red, two horizontal stripes.
4. The same inverted.
5. Blue over yellow, two horizontal stripes.
6. The same inverted.
7. Union.
8. Blue, white, red, horizontally.
Stars are placed in the four squares whose flags would be one of the invertible flags over its own inversion, probably because there was only one flag supplied of each design, and the other squares are numbered 1 to 68. Sixty-one signals are given. We then have half a dozen signals with Jacks, Pendants, and Wefts, Signals for each point of the compass, ending with 11 pages of Night signals.
Perhaps the best testimony of the value of this book is given in the letter from Nelson to Howe in acknowledgment of his congratulations on the victory of the Nile:
8th January 1799.
It was only this moment that I had the invaluable approbation of the great, the immortal Earl Howe, an honour the most flattering a Sea-Officer could receive, as it comes from the first and greatest Sea-Officer the world has ever produced. I had the happiness to command a Band of Brothers; therefore night was to my advantage. Each knew his duty, and I was sure each would feel for a French ship. By attacking the enemy's van and centre, the wind blowing directly along their Line, I was enabled to throw what force I pleased on a few Ships. This plan my friends conceived by the signals (for which we are principally if not entirely indebted to your Lordship) and we always kept a superior force to the enemy[387].