Jack was shown into a double-bedded room, and proceeded to undress; the other was evidently occupied, by the heavy breathing which saluted Jack's ear.
As Jack undressed, he recollected that his trousers were wet through, and to dry them he opened the window, hung them out, and then jammed down the window again upon them, to hold them in their position, after which he turned in and fell fast asleep.

At six o'clock he was called, as he had requested, and proceeded to dress, but to his astonishment found the window thrown open and his trousers missing.

It was evident, that his partner in the room had thrown the window open during the night, and that his trousers, having fallen down into the street, had been walked off with by somebody or another.

Jack looked out of the window once more, and perceived that whoever had thrown open the window had been unwell during the night.
A nice drunken companion I have had, thought Jack; but what's to be done?
And in saying this, he walked up to the other bed, and perceived that it was tenanted by the boatswain.

Well, thought Jack, as Mr Biggs has thought proper to lose my trousers, I think I have a right to take his, or at least the wear of them to go on board.