to walk, to crawl; all the movements that he makes bury him; he draws himself up, and only sinks deeper; he feels himself being swallowed up; he yells, implores, cries to the clouds, writhes his arms, and grows desperate. Then he is in the sand up to his waist; the sand reaches his chest, he is but a bust. He raises his hands, utters furious groans, digs his nails into the sand, tries to hold by this dust, raises himself on his elbows to tear himself from this soft sheath, and sobs frenziedly. The sand mounts, the sand reaches his shoulders, the sand reaches his neck, the face alone is visible now. The mouth cries, the sand fills it; silence. The eyes still look, the sand closes them; night. Then the forehead sinks, and a little hair waves above the sand; a hand emerges, digs up the sand, is waved, and disappears,--a sinister effacement of a man. At times the rider is swallowed up with his horse, at times the carter with his cart. It is a shipwreck otherwhere than in the water; it is the land drowning man. The land penetrated by the ocean becomes a snare; it offers itself as a plain, and opens like a wave. The abyss has its acts of treachery. Such a mournful adventure, always possible on some seashore, was also possible some thirty years ago in the sewer of Paris. Before the important works began in 1833 the subway of Paris was subject to sudden breakings-in. The water filtered through a subjacent and peculiarly friable soil; and the roadway, if made of paving-stones, as in the old drains, or of concrete upon béton, as in the new galleries, having no support, bent. A bend in a planking of this nature is a crevice, and a crevice is a bursting-in. The roadway broke away for a certain length, and such a gap, a gulf of mud, was called in professional language _fontis._ What is a fontis? It is the quicksand of the seashore suddenly met with underground; it is the strand of Mont St. Michel in a sewer. The moistened soil is in a state of fusion, all its particles are held in suspense in a shifting medium; it is not land and it is not water. The depth is at times very great. Nothing can be more formidable than meeting with such a thing; if water predominate death is quick, for a man is drowned; if earth predominate death is slow, for he is sucked down.