Sc. 5.
"Hear what?—I am thy father's spirit."
The repetition of Hear from preceding line seems necessary. Omissions of this kind are not unfrequent.
"And for the day confin'd to fast in fires."
Heath proposed lasting for 'fast in,' but, I think, with a loss of vigour, if a gain of correctness. 'Confin'd' may here signify limited, restrained. See on M. for M. iv. 3.
"That roots itself in ease on Lethe wharf."
The folio reads rots, which Mr. Dyce adopts.