Notes to Shakespeare, Volume III: The Tragedies

The scenes from the beginning to the end are busy, varied by happy interchanges, and regularly promoting the progression of the story; and the narrative in the end, though it tells but what is known already, yet is necessary to produce the death of Othello.

Had the scene opened in Cyprus, and the preceding incidents been occasionally related, there had been little wanting to a drama of the most exact and scrupulous regularity.

(LI 2) Appendix. Some apology perhaps is necessary for the inconvenience of an Appendix, which, however, we can justify by the strongest of all pleas, the plea of necessity. The Notes which it contains, whether communicated by correspondents, or collected from published volumes, were not within our reach when the plays were printed, to which they relate. Of that which chance has supplied, we could have no previous knowledge; and he that waited till the river should run dry, did not act with less reason than the Editor would do, who should suspend his publication for possibilities of intelligence, or promises of improvement. Had we foreseen the Oxford edition, the assistance we expected from it might have persuaded us to pause; but our volumes were completely finished before its publication. [There are no notes by Johnson in this Appendix; several are by Steevens.]