To F.I. Carpenter's A Reference Guide to Edmund Spenser (Chicago, 1923) and to Dorothy F. Atkinson's Edmund Spenser: A Bibliographical Supplement (Baltimore, 1937) I am necessarily indebted. I am fortunate in being able to express a yet larger debt to the generosity of Professor William Wells of the University of North Carolina, who put at my disposal the typescript of the long projected Spenser Allusion Book. There is very little indeed that I can add to the labours of its contributors. Professors Heffner, Padelford, and Wells are those who in succession have taken responsibility for the book, but the massive contribution of Miss Dorothy Mason (now of the Folger Library) cannot go un-noticed here. Miss Mason was also kind enough to answer an enquiry for me. For advice, encouragement, and for supplying valuable references, I am grateful to Dr Alastair Fowler of Brasenose College, Oxford, to Professor J.C. Bryce of Glasgow University, and to Mr R.M. Wilding of Sydney University. Dr van Dorsten of the Sir Thomas Browne Institute at Leyden, and the Rector of Lincoln College, Oxford, kindly answered specific enquiries. For other advice I thank Miss Hannah Buchan, and Mr Nigel Alexander, both of Glasgow. The University of Glasgow has been generous in its contributions towards my expenses.