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We take this opportunity to express our appreciation of the help which we have received during the progress of the work. Our thanks are due to the officials of the British Museum, and to those of the Astor Library (new York Public Library), for the unfailing courtesy with which our many demands upon the resources of these libraries have been met. Especially we wish to acknowledge our indebtedness to Miss Lucy W. Baxter, for information received from her, and to Major William H. Lambert, for access to his, unrivalled Thackeray collection, and for information derived from unpublished material in his possession.
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