Natural Magic (Magia Naturalis)

is of alabaster, eleven spans long;
yet the Turks there are said to be
unable to report who this
man was.
Furthermore, if one applies oneself to
Optics, one can bring about
many wondrously strange things,
such as few people have seen or
heard; for it is not within
everyone’s capacity, and
it also costs money. It is therefore
much better for great lords,
who may well employ it for both jest
and earnest.
As, firstly: mirrors in which
people see themselves as if they had
asses’ heads or other unseemly and
monstrous heads; how one may
make one’s will known to another
through mirrors; how one may
see therein what occurs in distant places,