ON A PASSAGE IN MACBETH.

If any of your correspondents would favour me, I should like to be satisfied with respect to the following passage in Macbeth; which, as at present punctuated, is exceedingly obscure:—

"If it were done, when 'tis done, then 'twere well

It were done quickly: If the assassination

Could trammel up the consequence, and catch,

With his surcease, success; that but this blow

Might be the be-all and the end-all here,

But here, upon this bank and shoal of time,—

We'd jump the life to come."