for emotional incongruity, and a cultivated delight in verbal fireworks or felicities. It is certain that in the time of Marlowe they were gaping for sensation and joyed in a comedy of beatings, a tragedy of murders, and a mixture of jigging and villany. For such audiences, for such a stage, under stress of immediate demand requiring hasty and collaborative work, Marlowe and his contemporaries wrote. They were hack writers, and so viewed by the literati of their day. Every one of them, Shakespeare included, had in the first place to satisfy the demands of the public theatres. This needs to be remembered no less than the fact that the plays of nearly all, of the meanest hack as well as Shakespeare, seem to have felt the stir and thrill of the effort to express thought in enduring words. In the course of the six or seven years ending with Marlowe's death in 1593, tragedy experienced a rapid and multiform development. The various influences already noticed in the last chapter as at work were developed by the ingenuity and innovation of a dozen writers, and translated into the expression of individual genius by Marlowe and Shakespeare. No theory of tragedy ruled the theatres; no school of dramatists adopted any code of principles; the plays which we class as tragedies were mostly known as histories and were written in violence to the accepted literary conception. Nevertheless, tragedy was establishing itself as a popular species of drama, was separating its themes and their treatment clearly from those of comedy, and was defining the course which it was to follow until the Puritan revolution.