Ben Franklin's Scientific Amusements

Abstract

special feature was a glass armonica constructed for the occasion, and intended to be an improvement on eighteenth-century models. It now stands down the hallway here, a very large contraption with thirty-seven glass bowls and a keyboard to enable it to be played like a piano. I remember that E. Power Biggs, after performing beautifully with simple musical glasses, had some difficulty with the armonica because several of the bowls