On the walls are encased the fragments of the marble plan of Rome
found in 1534-50, 1867, behind the Church of SS. Cosmo and Damiano.
They had originally served for the panelling of the wall that formed
part of the Temple of Rome built by Hadrian. The plan was made in the
third century, in the time of the Emperor Septimius Severus (193-211).
It is called the "Pianta Capitolina," and is of great use to
archæologists in studying the ground plan of the different buildings
marked upon it, though not as showing their relative positions.
After many years of study we have succeeded in putting this puzzle
together, and have published the marble plan, systematically arranged
in ten sheets, price six shillings, with descriptive letterpress.
_The doors at the top of the stairs lead us into the_