That it was only then, on the homeward voyage, after the encounter, that the final monomania seized him, seems all but certain from the fact that, at intervals during the passage, he was a raving lunatic; and, though unlimbed of a leg, yet such vital strength yet lurked in his Egyptian chest, and was moreover intensified by his delirium, that his mates were forced to lace him fast, even there, as he sailed, raving in his hammock.