Play-Making: A Manual of Craftsmanship
Chapter 6
Can it be doubted that Shakespeare had in his mind the rhythm marked by this act-division? I do not mean, of course, that these phrases, or anything like them, were present to his consciousness, but merely that he "thought in acts," and mentally assigned to each act its definite share in the development of the crisis.
Turning now to Ibsen, let us draw up an act-scheme for the simplest and most straightforward of his plays, _An Enemy of the People_. It might run as follows: