My thanks are due to the following for permission to use some of the items reprinted below: to G. Bell & Sons Ltd, for a chapter from New Essays Towards a Critical Method by J. M. Robertson; to Constable & Co. Ltd, and Greenwood Press, Inc, Westport, Conn., for an extract from Arthur Hugh Clough, by James Insley Osborne; to the Clarendon Press, Oxford, for extracts from Letters of Matthew Arnold to Arthur Hugh Clough (ed. H. F. Lowry) and The Correspondence of Arthur Hugh Clough (ed. F. L. Mulhauser); to Macmillan & Co. Ltd, for an extract from A History of Nineteenth Century Literature, by George Saintsbury; to The Times Literary Supplement for the review by A. S. MacDowall and to the Sewanee Review for the article by Martha Hale Shackford.
For help in tracing certain quotations I am thankful to Dr P. G.van der Nat of the University of Leiden and to Mr Adolf Höfer. Professor Leonard Kriegel kindly obtained copies of some of the American material. For the saving of much time and effort I owe my largest debt to the timely publication of the Descriptive Catalogue compiled by Messrs Houghton, Timko and Gollin.