The Sanhedrin sat in a semicircle, in order that they might see one
another; and two notaries stood before them, the one on the right and
the other on the left, to record the pros and cons in the various
processes. Rabbi Yehudah says there were three such notaries, one for
the pros, one for the cons, and one to record both the pros and the
THE TALMUD, _Sanhedrin_, fol. 36, col. 2.