twenty-eight wagon-loads of bones, collected from the different
catacombs, and said to be those of martyrs. This is the first notice
that has been preserved of the practice that became very general in
later times of transferring bodies and bones from their graves in the
rock to new ones under the city churches.

Little more is known of the history of the catacombs during the next
two centuries, but that for them it was a period of desolation and
desertion. The Lombard hordes often ravaged and devastated the Campagna
up to the very gates of the city, and descended into the underground
passages of the cemeteries in search of treasure, of relics, and of
shelter. Paul III., about the middle of the eighth century, took many
bones and much ashes from graves yet unrifled, and distributed them
to the churches. He has left a record of the motives that led him
to disturb dust that had rested so long in quiet. "In the lapse of
centuries," he says, "many cemeteries of the holy martyrs and confessors
of Christ have been neglected and fallen to decay. The impious Lombards
utterly ruined them,--and now among the faithful themselves the old
piety has been replaced by negligence, which has gone so far that even
animals have been allowed to enter them, and cattle have been stalled
within them." Still, although thus desecrated, the graves of the martyrs
continued to be an object of interest to the pilgrims, who, even in
these dangerous times, from year to year came to visit the holy places
of Rome; and itineraries, describing the localities of the catacombs
and of the noted tombs within them, prepared for the guidance of such
pilgrims, not later than the beginning of the ninth century, have
been preserved to us, and have afforded essential and most important
assistance in the recent investigations.[F]

[Footnote F: Four of these itineraries are known. One of them is
preserved in William of Malmesbury's _Chronicle_. The differences and
the correspondences between them have been of almost equal assistance in
modern days in the determination of doubtful names and localities.]

About the same time, Pope Paschal I. [A.D. 817-824] greatly interested
himself in searching in the catacombs for such bodies of the saints as
might yet remain in them, and in transferring these relics to churches
and monasteries within the city. A contemporary inscription, still
preserved in the crypt of the ancient church of St. Prassede, (a church
which all lovers