Modern Magic: A Practical Treatise on the Art of Conjuring

The only automaton of Professor Anderson was, compared with that of his predecessors, extremely weak, and scarcely deserving of notice. It consisted of an old man, who nodded, shook his head, and raised his arm to ring a bell. The reader of these articles will know exactly how this was done. The head was worked beneath the stage; one string causing the head to nod, another to turn from side to side, and a third raising its arm and letting its hand fall upon a bell. By these three simple movements it answered various questions put to it.