The existence, in almost every sea, of calamaries capable of playing their part in such a scene has been fully proved, and this vexed question of marine zoology set at rest for ever. The "much greater light on this subject," which, as Pontoppidan sagaciously foresaw, was "reserved for posterity," has been thrown upon it by the discoveries of the last few years; and the "further experience which is always the best instructor," and which he correctly anticipated would be possessed by the "future writers," to whom he bequeathed the completion of his "sketch," has been obtained. Viewed by their aid, and seen in the clearer atmosphere of our present knowledge, the great sea-monster which loomed so indefinitely vast in the mist of ignorance and superstition, stands revealed in its true form and proportions--its magnitude reduced, its outline distinct, and its mystery gone--and we recognise in the supposed Kraken, as the Norwegian bishop rightly conjectured that we should, an animal "of the Polypus (or cuttle) kind, and amongst the largest inhabitants of the ocean." THE GREAT SEA SERPENT. The belief in the existence of sea-serpents of formidable dimensions is of great antiquity. Aristotle, writing about B.C. 340, says[22]:--"The serpents of Libya are of an enormous size. Navigators along that coast report having seen a great quantity of bones of oxen, which they believe, without doubt, to have been devoured by the serpents. These serpents pursued them when they left the shore, and upset one of their triremes"--a vessel of a large class, having three banks of oars. [22] 'History of Animals,' book 8, chap. 28. Pliny tells us[23] that a squadron sent by Alexander the Great on a voyage of discovery, under the command of Onesicritus and Nearchus, encountered, in the neighbourhood of some islands in the Persian Gulf, sea-serpents thirty feet long, which filled the fleet with terror. [23] 'Naturalis Historiae,' Lib. vi., cap. 23.