For the first 'till,' caused in the usual manner, I read ere; for it is just before the King appears that the scene changes.
Sc. 1.
"There shall be smiles."
Farmer and Collier's folio read smites. "Norfolk, we must have knocks" (R. III. v. 3). In Ant. and Cleop. iii. 2, we have also smile for smite. See also Tr. and Cr. v. 11.
"And there's an end."
The 4tos read "And there's the humour of it," which is perhaps better.
"O well a day, Lady, if he be not hewn now."