Here, now, are two great whales, laying their heads together; let us join them, and lay together our own.

Of the grand order of folio leviathans, the Sperm Whale and the Right Whale are by far the most noteworthy. They are the only whales regularly hunted by man. To the Nantucketer, they present the two extremes of all the known varieties of the whale. As the external difference between them is mainly observable in their heads; and as a head of each is this moment hanging from the Pequod’s side; and as we may freely go from one to the other, by merely stepping across the deck:—where, I should like to know, will you obtain a better chance to study practical cetology than here?

In the first place, you are struck by the general contrast between these heads.

Moreover, while in most other animals that I can now think of, the eyes are so planted as imperceptibly to blend their visual power, so as to produce one picture and not two to the brain; the peculiar position of the whale’s eyes, effectually divided as they are by many cubic feet of solid head, which towers between them like a great mountain separating two lakes in valleys; this, of course, must wholly separate the impressions which each independent organ imparts.

A curious and most puzzling question might be started concerning this visual matter as touching the Leviathan.