I succeeded in rediscovering among the Harleian Collection the documents upon which Baker's notes were based, and gave an account of them, with extracts, in T /ze Fert nightly Review for February, 1899, but they now appear in full for the first time. I have to thank the authorities of the British Museum for permission to reproduce in facsimile Kyd's letter to Sir T. Puckering and part of the so-called 'atheistic treatise, which he states that he got from Marlowe. I have also to thank Mr. J. A. Herbert of the Department of mss. At the British Museum for expert help in transcribing some of the documents. I have a number of other obligations to acknowledge. To His Grace, the Archbishop of Canterbury', to the Director of the British Museum, and to the Curators of the Bodleian, I am indebted respectively for permission to reproduce the title-pages of Kyd's various works. Through the kind offices of Professor Morsbach, the authorities of the University Library at Gottingen con ferred on me the favour of sending their unique copy of the I 594 Quarto of T lie Spain's/z T ragedie to the British Museum to enable me to collate it for the present volume. Mr. S. Arthur Strong, Librarian to the House of Lords and to the Duke of Devonshire, placed similarly at my disposal the Chatsworth copies of the play, including the unique specimen of the 1602 — 3 Quarto. Lord Ellesmere very kindly gave me facilities for collating his unique copy of the I 599 Quarto at Bridgwater House, and Mr. A. H.