reached from the south aisle by a broad flight of twenty steps. The
Roman Catholic Church has faithfully handed down the tradition that S.
Clement erected an oratory in his own house, between the Cœlian and
Esquiline Hills, which must have been built, as we have seen, close to
the walls of the city--a not unusual thing as the city grew. Several
chambers remain to be excavated at some future time. A long passage
has been cleared out, in which was found a doorway bricked up. This
was broken through, and found to be a