certainty of the poet and his work may hope to be guided towards any safe issue or trustworthy result. Less pardonable and more presumptuous than this is the pretension of minor critics to dissect an authentic play of Shakespeare scene by scene, and assign different parts of the same poem to different dates by the same pedagogic rules of numeration and mensuration which they would apply to the general question of the order and succession of his collective works. This vivisection of a single poem is not defensible as a freak of scholarship, an excursion beyond the bounds of bare proof, from which the wanderer may chance to bring back, if not such treasure as he went out to seek, yet some stray godsend or rare literary windfall which may serve to excuse his indulgence in the seemingly profitless pastime of a truant disposition. It is a pure impertinence to affirm with oracular assurance what might perhaps be admissible as a suggestion offered with the due diffidence of modest and genuine scholarship; to assert on the strength of a private pedant's personal intuition that such must be the history or such the composition of a great work whose history he alone could tell, whose composition he alone could explain, who gave it to us as his genius had given it to him. From these several rocks and quicksands I trust at least to keep my humbler course at a safe distance, and steer clear of all sandy shallows of theory or sunken shoals of hypothesis on which no pilot can be certain of safe anchorage; avoiding all assumption, though never so plausible, for which no ground but that of fancy can be shown, all suggestion though never so ingenious for which no proof but that of conjecture can be advanced. For instance, I shall neither assume nor accept the theory of a double authorship or of a double date by which the supposed inequalities may be accounted for, the supposed difficulties may be swept away, which for certain readers disturb the study of certain plays of Shakespeare. Only where universal tradition and the general concurrence of all reasonable critics past and present combine to indicate an unmistakable difference of touch or an unmistakable diversity of date between this and that portion of the same play, or where the internal evidence of interpolation perceptible to the most careless and undeniable by the most perverse of readers is supported by the public judgment of men qualified to express and competent to defend an opinion, have I thought it allowable to adopt this facile method of explanation. No scholar, for example, believes in the single authorship of _Pericles_ or _Andronicus_; none, I suppose, would now question the part taken by some hireling or journeyman in the arrangement or completion for the stage of _Timon of Athens_; and few probably would refuse to admit a doubt of the total authenticity or uniform workmanship of the _Taming of the Shrew_. As few, I hope, are prepared to follow the fantastic and confident