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Published online by Cambridge University Press: 28 July 2016
If a librarian who makes no claim to any Special knowledge of history needs an excuse for contributing to this Journal, it may be found in the boldness with which some historians undertake bibliographical tasks without admitting the ignorance they do not feel. But an acquaintance with bibliographical method is a necessary part of the equipment of every scholar, and to promulgate the theory of it is very much the business of librarians. The primary object of a published bibliography is to enable users of it to identify books in the catalogues of libraries, and it must therefore consist of accurate descriptions made on recognisable principles. A valuable secondary object is to help librarians to supply the deficiencies of their collections, and this cannot be done unless the bibliography is competently Condensed from a survey of all the relevant material. This essay, then, is not intended to be a direct contribution to the history of Ireland ; I have merely chosen a limited period of Irish history from which to draw examples illustrating some principles of bibliographical compilation.