_An artificial Spider, which moves by Electricity._
Take a bit of burnt cork, as big as a pea; give it the shape of a
spider; make its legs with threads of hemp; put a grain of lead in the
cork to give it some weight; then hang this artificial spider by a
bit of grey sewing silk (that is not twisted) between two bodies, the
one electrified and the other not; or between two bodies endowed with
different electricities: it will go and come between these two bodies,
and the movement of the legs will be seen as plain as if it were a
living spider.
This artificial spider, if well made, will astonish those who see it
move so naturally.