BELGIAN CAVERNS.

  Earliest Discoveries in Caves of Languedoc of Human Remains with
     Bones of extinct Mammalia.
  Researches in 1833 of Dr. Schmerling in the Liege Caverns.
  Scattered Portions of Human Skeletons associated with Bones
     of Elephant and Rhinoceros.
  Distribution and probable Mode of Introduction of the Bones.
  Implements of Flint and Bone.
  Schmerling's Conclusions as to the Antiquity of Man ignored.
  Present State of the Belgian Caves.
  Human Bones recently found in Cave of Engihoul.
  Engulfed Rivers.
  Stalagmitic Crust.
  Antiquity of the Human Remains in Belgium how proved.

Having hitherto considered those formations in which both the fossil shells and the mammalia are of living species, we may now turn our attention to those of older date, in which the shells being all recent, some of the accompanying mammalia are extinct, or belong to species not known to have lived within the times of history or tradition.