Note 410 — NOTE ON SYMBOLS (continued 3)
Reading edition
M. N. D. III. ii. 463 (F1), ‘They sleep all the Act’; i. e. all the act-interval (cf. p. 131). So in Catiline the storm with which Act III ends is still on at the beginning of Act IV, and in Alchemist Mammon and Lovewit are seen approaching at the ends of Acts I and IV respectively, but in both cases the actual arrival is at the beginning of the next act.