Signal

So the signal was set to see what response would be made.

Here be it said, that like the vessels of military marines, the ships of the American Whale Fleet have each a private signal; all which signals being collected in a book with the names of the respective vessels attached, every captain is provided with it. Thereby, the whale commanders are enabled to recognise each other upon the ocean, even at considerable distances and with no small facility.

The Pequod’s signal was at last responded to by the stranger’s setting her own; which proved the ship to be the Jeroboam of Nantucket. Squaring her yards, she bore down, ranged abeam under the Pequod’s lee, and lowered a boat; it soon drew nigh; but, as the side-ladder was being rigged by Starbuck’s order to accommodate the visiting captain, the stranger in question waved his hand from his boat’s stern in token of that proceeding being entirely unnecessary. It turned out that the Jeroboam had a malignant epidemic on board, and that Mayhew, her captain, was fearful of infecting the Pequod’s company.