136-7.
[30] Some doubt has been expressed as to the signals with which Nelson opened at daybreak on the 21st.

But their actual numbers are recorded in the logs of the Mars, Defiance, Conqueror and Bellerophon, and all but the first in the log of the Euryalus repeating frigate.

They were No.
72: 'To form order of sailing in two columns or divisions of the fleet,' which, by the memorandum was also to be the order of battle; No.

76, with compass signal ENE, 'when lying by or sailing by the wind to bear up and sail large on the course pointed out'; No.

13, Prepare for battle.