And the sea-bottom, also, has its zones, at different depths, and its peculiar forms in peculiar spots, affected by the currents and the nature of the ground, the riches of which have to be seen, alas! rather by the imagination than the eye; for such spoonfuls of the treasure as the dredge brings up to us, come too often rolled and battered, torn from their sites and contracted by fear, mere hints to us of what the populous reality below is like. Often, standing on the shore at low tide, has one longed to walk on and in under the waves, as the water-ousel does in the pools of the mountain burn, and see it all but for a moment; and a solemn beauty and meaning has invested the old Greek fable of Glaucus the fisherman: how eating of the herb which gave his fish strength to leap back into their native element, he was seized on the spot with a strange longing to follow them under the waves, and became for ever a companion of the fair semi-human forms with which the Hellenic poets peopled their sunny bays and firths, feeding "silent flocks" far below on the green Zostera beds, or basking with them on the sunny ledges in the summer noon, or wandering in the still bays on sultry nights amid the choir of Amphitrite and her sea-nymphs:-"Joining the bliss of the gods, as they waken the coves with their laughter,"in nightly revels, whereof one has sung, -"So they came up in their joy; and before them the roll of the surges Sank, as the breezes sank dead, into smooth green foam-flecked marble Awed; and the crags of the cliffs, and the pines of the mountains, were silent.

So they came up in their joy, and around them the lamps of the sea-nymphs, Myriad fiery globes, swam heaving and panting, and rainbows, Crimson, and azure, and emerald, were broken in star-showers, lighting, Far in the wine-dark depths of the crystal, the gardens of Nereus, Coral, and sea-fan, and tangle, the blooms and the palms of the ocean.

So they went on in their joy, more white than the foam which they scattered, Laughing and singing and tossing and twining; while, eager, the Tritons Blinded with kisses their eyes, unreproved, and above them in worship Fluttered the terns, and the sea-gulls swept past them on silvery pinions, Echoing softly their laughter; around them the wantoning dolphins Sighed as they plunged, full of love; and the great sea-horses which bore them Curved up their crests in their pride to the delicate arms of their riders, Pawing the spray into gems, till a fiery rainfall, unharming, Sparkled and gleamed on the limbs of the maids, and the coils of the mermen.

So they went on in their joy, bathed round with the fiery coolness, Needing nor sun nor moon, self-lighted, immortal: but others, Pitiful, floated in silence apart; on their knees lay the sea-boys Whelmed by the roll of the surge, swept down by the anger of Nereus;Hapless, whom never again upon quay or strand shall their mothers Welcome with garlands and vows to the temples; but, wearily pining, Gaze over island and main for the sails which return not; they, heedless, Sleep in soft bosoms for ever, and dream of the surge and the sea-maids.