Read it through once

When first severed, the head is dropped astern and held there by a cable till the body is stripped. That done, if it belong to a small whale it is hoisted on deck to be deliberately disposed of. But, with a full grown leviathan this is impossible; for the sperm whale’s head embraces nearly one third of his entire bulk, and completely to suspend such a burden as that, even by the immense tackles of a whaler, this were as vain a thing as to attempt weighing a Dutch barn in jewellers’ scales.