SCULPTURE IN ROYSTON CAVE (_Photo by_ R.H. CLARK, ROYSTON)
ROYSTON CAVE (_Photo by_ R. H. CLARK, ROYSTON)
CHATEAU DE RIGNAC
LE TROU BOUROU
ROCK BAPTISTERY OF ST. MARTIN
TRIUMPH OF CHRIST OVER DEATH (_Photo by_ LACROIX)
CAVES OF LIGUGE
NESS CLIFF
KYNASTON'S CAVE




CLIFF CASTLES AND CAVE DWELLINGS OF EUROPE


CHAPTER I

PREHISTORIC CAVE-DWELLERS


In a vastly remote past, and for a vastly extended period, the mighty
deep rolled over the surface of a world inform and void, depositing a
sediment of its used up living tenants, the microscopic cases of
foraminiferae, sponges, sea-urchins, husks, and the cast limbs of
crustaceans. The descending shells of the diatoms like a subaqueous
snow gradually buried the larger dejections. This went on till the
sediment had attained a thickness of over one thousand feet. Then the
earth beneath, heaved and tossed in sleep, cast off its white
featherbed, projected it on high to become the chalk formation that