16 2 Inti oducing Shakespeare paid to vamp up a pirated copy. The pirated texts of Henry F, Hamlet and The Merry Wives of Windsor were pro- duced in this way. Sometimes when the players were hard up they sold their play-books. After the dislocation caused by the plague of 15-92-4, twenty-two plays were published in one year. When a play had ceased to be profitable, it was sometimes sold; and there were occasions when for some particular reason it was desirable to allow printed copies to be circulated. Thus the Lord Chamberlain's Men allowed the first part of Henry IV to be published, probably to demonstrate to the world that Oldcastle'sli name had been changed to Falstaff.* Although the players had no dramatic copyright in their plays, they were not without some protection. There was a printer's copyright; a printer, by the rules of the Stationers* Company, was obliged to enter the titles of books which he printed in the Stationers' Register. This gave him sole right to print. In practice, however, printers were very casual in observing the regulations, and only about two-thirds of the books printed were actually en- tered. Books were not allowed to be entered unless the authority of the wardens of the Stationers' Company, or of the Archbishop of Canterbury or the Bishop of London or the Privy Council, had first been secured. Players were sometimes able to prevent the unwarranted printing of their plays by appealing to their patrons. Sometimes they arranged with a printer to enter the play in the Stationers' Register and so secure copyright, but with no intention of printing it. Elizabethan play-texts were often carelessly printed. . 76.