Then between the master-at-arms with a drawn sword and two corporals with drawn swords behind, the thief, stripped to the waist, is placed.

The thing is started by a boatswain's mate givin' him a dozen lashes.

Then he's slowly marched down the double line of men, who flog him as he passes, and at the end of the line he receives another dose of the cat from the boatswain's mate.

The poor devil's body and head are flayed, and he's sent to hospital and rubbed with brine till he's healed.
"But the most horrible of all is flogging through the fleet.

That's given for strikin' an officer, or tryin' to escape.