of writing, of which we can tell what is its essence, and what are its constituents; every new genius produces some innovation, which, when invented and approved, subverts the rules which the practice of foregoing authors had established.

Comedy has been particularly unpropitious to definers; for though perhaps they might properly have contented themselves, with declaring it to be such a dramatick representation of human life, as may excite mirth, they have embarrassed their definition with the means by which the comick writers attain their end, without considering that the various methods of exhilarating their audience, not being limited by nature, cannot be comprised in precept. Thus, some make comedy a representation of mean, and others of bad men; some think that its essence consists in the unimportance, others in the fictitiousness of the transaction. But any man's reflections will inform him, that every dramatick composition which raises mirth is comick; and that, to raise mirth, it is by no means universally necessary, that the personages should be either mean or corrupt, nor always requisite, that the action should be trivial, nor ever, that it should be fictitious.

If the two kinds of dramatick poetry had been defined only by their effects upon the mind, some absurdities might have been prevented, with which the compositions of our greatest poets are disgraced, who, for want of some settled ideas and accurate distinctions, have unhappily confounded tragick with comick sentiments. They seem to have thought, that as the meanness of personages constituted comedy, their greatness was sufficient to form a tragedy; and that nothing was neces-