In Shakespeare Survey, 7 I described how A. W. Pollard and W. W. Greg, now Sir Walter Greg, laid the foundations of a more exact method of dealing with Shakespeare’s texts by basing it upon previous bibliographical inquiries into the practices of printers and publishers in the fifteenth, sixteenth and seventeenth centuries. In Shakespeare Survey, 9 I hope to show how our knowledge of these texts has since been deepened and extended by the study of such dramatic manuscripts as have come down to us from that period. The present article is intended to illustrate the new methods by explaining what they involve when applied to a problem of peculiar difficulty, It so happens that G. I. Duthie formerly of McGill and now of Aberdeen University, the well-known textual scholar, has for some years been engaged with me upon an edition of Romeo and Juliet, and the following account of the conclusions we have come to and of how we came to them is given with his permission, though since it has not been possible for him to see it in final draft, he may still have some reservations on details.