1. Homer, Iliad XVIII, 376: Hephaestus’ statues were fitted with wheels. Daedalus’ statues were so lifelike that they were thought to move.

2. A ‘plucker’ was the instrument with which the strings or the lyre were played by the performer.

3. Praktikon, ‘with which to do something’.

4. I.e. separate from its possessor (unlike the hand in I ii, which loses its power when severed from its owner).