{"id":"01KF7FPSD7QQMBGFA58DFT3YST","cid":"bafkreihglvoudfhznj35v5tsocirxdnipnzg3ohxbo4lubopz4u73e4wyy","type":"chunk","properties":{"end_line":13365,"extracted_at":"2026-01-18T02:42:20.374Z","extracted_by":"structure-extraction-lambda","label":"Chunk 1","source_file":"01KESYVB66H8YEVTN88DWE9W8D","start_line":13297,"text":"Just so with the head; but with this difference: about the head this\r\nenvelope, though not so thick, is of a boneless toughness, inestimable\r\nby any man who has not handled it. The severest pointed harpoon, the\r\nsharpest lance darted by the strongest human arm, impotently rebounds\r\nfrom it. It is as though the forehead of the Sperm Whale were paved\r\nwith horses’ hoofs. I do not think that any sensation lurks in it.\r\n\r\nBethink yourself also of another thing. When two large, loaded Indiamen\r\nchance to crowd and crush towards each other in the docks, what do the\r\nsailors do? They do not suspend between them, at the point of coming\r\ncontact, any merely hard substance, like iron or wood. No, they hold\r\nthere a large, round wad of tow and cork, enveloped in the thickest and\r\ntoughest of ox-hide. That bravely and uninjured takes the jam which\r\nwould have snapped all their oaken handspikes and iron crow-bars. By\r\nitself this sufficiently illustrates the obvious fact I drive at. But\r\nsupplementary to this, it has hypothetically occurred to me, that as\r\nordinary fish possess what is called a swimming bladder in them,\r\ncapable, at will, of distension or contraction; and as the Sperm Whale,\r\nas far as I know, has no such provision in him; considering, too, the\r\notherwise inexplicable manner in which he now depresses his head\r\naltogether beneath the surface, and anon swims with it high elevated\r\nout of the water; considering the unobstructed elasticity of its\r\nenvelope; considering the unique interior of his head; it has\r\nhypothetically occurred to me, I say, that those mystical lung-celled\r\nhoneycombs there may possibly have some hitherto unknown and\r\nunsuspected connexion with the outer air, so as to be susceptible to\r\natmospheric distension and contraction. If this be so, fancy the\r\nirresistibleness of that might, to which the most impalpable and\r\ndestructive of all elements contributes.\r\n\r\nNow, mark. Unerringly impelling this dead, impregnable, uninjurable\r\nwall, and this most buoyant thing within; there swims behind it all a\r\nmass of tremendous life, only to be adequately estimated as piled wood\r\nis—by the cord; and all obedient to one volition, as the smallest\r\ninsect. So that when I shall hereafter detail to you all the\r\nspecialities and concentrations of potency everywhere lurking in this\r\nexpansive monster; when I shall show you some of his more\r\ninconsiderable braining feats; I trust you will have renounced all\r\nignorant incredulity, and be ready to abide by this; that though the\r\nSperm Whale stove a passage through the Isthmus of Darien, and mixed\r\nthe Atlantic with the Pacific, you would not elevate one hair of your\r\neye-brow. For unless you own the whale, you are but a provincial and\r\nsentimentalist in Truth. But clear Truth is a thing for salamander\r\ngiants only to encounter; how small the chances for the provincials\r\nthen? What befell the weakling youth lifting the dread goddess’s veil\r\nat Lais?\r\n\r\n\r\nCHAPTER 77. The Great Heidelburgh Tun.\r\n\r\nNow comes the Baling of the Case. But to comprehend it aright, you must\r\nknow something of the curious internal structure of the thing operated\r\nupon.\r\n\r\nRegarding the Sperm Whale’s head as a solid oblong, you may, on an\r\ninclined plane, sideways divide it into two quoins,* whereof the lower\r\nis the bony structure, forming the cranium and jaws, and the upper an\r\nunctuous mass wholly free from bones; its broad forward end forming the\r\nexpanded vertical apparent forehead of the whale. At the middle of the\r\nforehead horizontally subdivide this upper quoin, and then you have two\r\nalmost equal parts, which before were naturally divided by an internal\r\nwall of a thick tendinous substance.\r\n\r\n*Quoin is not a Euclidean term. It belongs to the pure nautical\r\nmathematics. I know not that it has been defined before. A quoin is a\r\nsolid which differs from a wedge in having its sharp end formed by the\r\nsteep inclination of one side, instead of the mutual tapering of both\r\nsides.\r\n\r","title":"Chunk 1"},"relationships":[{"peer":"01KF7FPMNKPJPHEPCGQVBBBFW6","peer_label":"The Battering-Ram.","peer_type":"chapter","predicate":"in"},{"peer":"01KF7FPMNKPJPHEPCGQVBBBFW6","peer_label":"The Battering-Ram.","peer_type":"chapter","predicate":"partOf"},{"peer":"01KF7FPKDT5SHSH1ZQV6ABHQCA","peer_label":"Moby Dick; Or, The Whale","peer_type":"book","predicate":"partOf"},{"peer":"01KESYJX0Z6XE0HWTS5N3SDG0B","peer_label":"The Classics","peer_type":"collection","predicate":"collection"},{"peer":"01KF7FPSB06NQ0JNDPNDH7XH2A","peer_label":"Chunk 2","peer_type":"chunk","predicate":"next"},{"peer":"01KF7FPSCPXNR4PAK8EJ410PAT","peer_label":"Chunk 0","peer_type":"chunk","predicate":"prev"}],"ver":2,"created_at":"2026-01-18T02:42:20.879Z","ts":"2026-01-18T02:42:27.848Z","edited_by":{"method":"manual","user_id":"01KF7FCDA7SCSJ6A30TDPDSJQV"}}