Capstan

“Attend now, my braves. I have mustered ye all round this capstan; and ye mates, flank me with your lances; and ye harpooneers, stand there with your irons; and ye, stout mariners, ring me in, that I may in some sort revive a noble custom of my fisherman fathers before me.

How is it, that you, a mere oarsman in the fishery, pretend to know aught about the subterranean parts of the whale? Did erudite Stubb, mounted upon your capstan, deliver lectures on the anatomy of the Cetacea; and by help of the windlass, hold up a specimen rib for exhibition? Explain thyself, Ishmael.