Note 32 — Chapter IV · THE CLOUDS.
Reading edition
The Greek commentators inform us very particularly by what appliances thunder was imitated on the Athenian stage; either “by rolling leather bags full of pebbles down sheets of brass,” or by “pouring them into a huge brazen caldron.” (See note to Walsh’s Aristoph., p. 302.) But Greek commentators are not to be depended upon in such matters.