It was my wish not to begin to print The English and Scottish Popular Ballads until this unrestricted title should be justified by my having at command every valuable copy of every known ballad. A continuous effort to accomplish this object has been making for some nine or ten years, and many have joined in it. By correspondence, and by an extensive diffusion of printed circulars, I have tried to stimulate collection from tradition in Scotland, Canada, and the United States, and no becoming means has been left unemployed to obtain possession of unsunned treasures locked up in writing. The gathering from tradition has been, as ought perhaps to have been foreseen at this late day, meagre, and generally of indifferent quality. Materials in the hands of former editors have, in some cases, been lost beyond recovery, and very probably have lighted fires, like that large cantle of the Percy manuscript, _maxime deflendus_! Access to several manuscript collections has not yet been secured. But what is still lacking is believed to bear no great proportion to what is in hand, and may soon come in, besides: meanwhile, the uncertainties of the world forbid a longer delay to publish so much as has been got together. Of hitherto unused materials, much the most important is a large collection of ballads made by Motherwell. For leave to take a copy of this I am deeply indebted to the present possessor, Mr Malcolm Colquhoun Thomson, of Glasgow, who even allowed the manuscript to be sent to London, and to be retained several months, for my accommodation. Mr J. Wylie Guild, of Glasgow, also permitted the use of a note-book of Motherwell's which supplements the great manuscript, and this my unwearied friend, Mr James Barclay Murdoch, to whose solicitation I owe both, himself transcribed with the most scrupulous accuracy. No other good office, asked or unasked, has Mr Murdoch spared. Next in extent to the Motherwell collections come those of the late Mr Kinloch. These he freely placed at my disposal, and Mr William Macmath, of Edinburgh, made during Mr Kinloch's life an exquisite copy of the larger part of them, enriched with notes from Mr Kinloch's papers, and sent it to me across the water. After Mr Kinloch's death his collections were acquired by Harvard College Library, still through the agency of Mr Macmath, who has from the beginning rendered a highly valued assistance, not less by his suggestions and communications than by his zealous mediation.