of primitive religion taken in this book is largely, although not altogether in detail, that of J. G. Frazer, _The Golden Bough_ (1890, 2nd ed. 1900), which itself owes much to E. B. Tylor, _Primitive Culture_ (1871); W. Robertson Smith, _Religion of the Semites_ (2nd ed. 1894); W. Mannhardt, _Der Baumkultus der Germanen_ (1875); _Antike Wald-und Feldkulte_ (1875-7). A more systematic work on similar lines is F. B. Jevons, _An Introduction to the History of Religion_ (1896): and amongst many others may be mentioned A. Lang, _Myth, Ritual, and Religion_ (1887, 2nd ed. 1899), the conclusions of which are somewhat modified in the same writer’s _The Making of Religion_ (1898); Grant Allen, _The Evolution of the Idea of God_ (1897); E. S. Hartland, _The Legend of Perseus_ (1894-6); J. Rhys, _The Origin and Growth of Religion as illustrated by Celtic Heathendom_ (1888). The last of these deals especially with Keltic _data_, which may be further studied in H. D’Arbois de Jubainville, _Le Cycle mythologique irlandais et la Mythologie celtique_ (1884), together with the chapter on _La Religion_ in the same writer’s _La Civilisation des Celtes et celle de l’Épopée homérique_ (1899) and A. Bertrand, _La Religion des Gaulois_ (1897). Teutonic religion has been more completely investigated. Recent works of authority are E. H. Meyer, _Germanische Mythologie_ (1891); W. Golther, _Handbuch der germanischen Mythologie_ (1895); and the article by E. Mogk on _Mythologie_ in H. Paul’s _Grundriss der germanischen Philologie_, vol. iii (2nd ed. 1897). The collection of material in J. Grimm’s _Teutonic Mythology_ (transl. J. S. Stallybrass, 1880-8) is still of the greatest value. The general facts of early German civilization are given by F. B. Gummere, _Germanic Origins_ (1892), and for the Aryan-speaking peoples in general by O. Schräder, _Prehistoric Antiquities of the Aryan Peoples_ (transl. F. B. Jevons, 1890), and _Reallexicon der indo-germanischen Altertumskunde_ (1901). In dealing with the primitive calendar I have mainly, but not wholly, followed the valuable researches of A. Tille, _Deutsche Weihnacht_ (1893) and _Yule and Christmas_ (1899), a scholar the loss of whom to this country is one of the lamentable results of the recent war.]