In 1594, in the thirtieth year of his professoriate, he built at his own expense a new anatomical amphitheatre, which still exists in the university buildings.

It is a small, high-pitched room with six standing-rows for auditors rising abruptly one above the other.

The arena is not much more than large enough for the dissecting table which, by a lift, could be brought up from a preparing room below.

The study of anatomy at Padua must have declined since the days of Vesalius if this tiny amphitheatre held all its students; none the less, it is probably the oldest existing anatomical lecture room, and for us it has a very special significance.
Early in his anatomical studies Fabricius had demonstrated the valves in the veins.

I show you here two figures, the first, as far as I know, in which these structures are depicted.