But it is a ponderous task; no ordinary letter-sorter in the Post-Office is equal to it. To grope down into the bottom of the sea after them; to have one’s hands among the unspeakable foundations, ribs, and very pelvis of the world; this is a fearful thing. What am I that I should essay to hook the nose of this leviathan! The awful tauntings in Job might well appall me. “Will he (the leviathan) make a covenant with thee? Behold the hope of him is vain!” But I have swam through libraries and sailed through oceans; I have had to do with whales with these visible hands; I am in earnest; and I will try. There are some preliminaries to settle.

First: The uncertain, unsettled condition of this science of Cetology is in the very vestibule attested by the fact, that in some quarters it still remains a moot point whether a whale be a fish. In his System of Nature, AD 1776, Linnaeus declares, “I hereby separate the whales from the fish.” But of my own knowledge, I know that down to the year 1850, sharks and shad, alewives and herring, against Linnaeus’s express edict, were still found dividing the possession of the same seas with the Leviathan.