The Artificial Spider
Cut a piece of burnt cork, about the size of a pea, into the shape of
a spider; make its legs of linen thread, and put a grain or two of
lead in it to give it more weight. Suspend it by a fine line of silk
between an electrified arch and an excited stick of wax; and it will
jump continually from one body to the other, moving its legs at the
same time, as if animated, to the great surprise of the unconscious
spectator.