The best bibliography of immigration in general is that published by the Library of Congress, A. P. C. Griffin (compiler), _A List of Books (with References to Periodicals) on Immigration_ (3rd issue, with additions, 1907), but this is not complete, especially as relating to Scandinavian immigration. It omits all state documents, but is strong in its list of Congressional and executive documents. For the Scandinavian movement, the bibliography in O. N. Nelson (editor), _History of the Scandinavians and Successful Scandinavians in the United States_ (2nd ed., I, 265-295), is the most useful, though it is unfortunately arranged on a strictly chronological basis in two parts. It is, however, far from complete, omitting practically all Federal and State publications, and all periodicals save for specific mention of certain articles. In the field of periodicals, is _Bibliografi; Svensk-Amerikansk Periodisk Literatur_ (being No. 8, _Kungl. Bibliothekets Handlingar_, Stockholm, 1886). In a general way, the following bibliography includes only those books, pamphlets, periodicals, and newspapers which were directly used in the preparation of this volume. In the case of foreign publications, the place as well as the date of publication is usually given. DOCUMENTARY SOURCES 1. _Official Publications of the United States._ Five series of reports published by the Federal Government are of very great importance in the study of immigration, both for their scope and their accuracy: the _Reports_ of the censuses from 1850 to 1910; the _Annual Statistical Abstracts_ (36 vols., 1879-1913); _Annual Reports of the Commissioner-general of Immigration_ (17 vols., 1891-1909); _Reports from the Consuls of the United States_ (notably vol. 22, No. 76, 1887), particularly those from the consuls in Norway, Sweden, and Denmark; and _Special Consular Reports_ (particularly vol. 30, 1904). _The Report of the Industrial Commission_ (especially vols. XV (1901) and XIX (1902)), contains a vast amount of recent, complete, and diversified material in the testimony taken by the Commission and in the well-digested reports prepared by experts like John R. Commons. The Bureau of Statistics of the Treasury Department, _Immigration into the United States, showing number, nationality, sex, age, destination_ (etc.) _from 1820-1903_ (in _Monthly Summary of Commerce and Finance_, June, 1903), gives general tables and a review in convenient form.