So also has Poseidon, because that is the common English spelling. In short, the practice aimed at has been not that of scientific uniformity, but of acknowledged poetic usage. In the titles of the illustrative cuts, Greek names have been used for works of Greek origin, Latin for the Roman. For the benefit of readers who do not know the fundamental rules for the pronunciation of Greek and Latin proper names in English, a brief statement of rules is prefixed to the Index; and in the Index of Mythological Subjects and their Sources names are not only accented, but, when necessary, diacritically marked. In the preparation of the Text and Commentary more or less use has been made of: Roscher's Ausführliches Lexikon der griechischen und römischen Mythologie (Lieferungen 1-21, Teubner, Leipzig); Preller's Griechische Mythologie (2 Bde., Berlin, 1861); Max Müller's Chips from a German Workshop, Science of Religion (London, 1873), Science of Language (7th ed., 2 vols., London, 1873), Oxford Essays (1856); Sir G. W. Cox's Mythology of the Aryan Nations (2 vols., London, 1878); Frazer's Golden Bough; W. Warde Fowler's Roman Festivals (London, 1899); Welcker's Griechische Götterlehre; Baumeister's Denkmäler des klassischen Alterthums; Murray's Manual of Mythology (New York, 1880); Smith's Dictionary of Greek and Roman Biography and Mythology; Duruy's Histories of Rome and Greece; Keightley's Greek and Roman Mythology; Kelsey's Outline of Greek and Roman Mythology (Boston, 1889); Horn's Geschichte der Literatur des skandinavischen Nordens (Leipzig, 1880); Cleasby and Vigfusson's Icelandic Dictionary; Lüning's Die Edda (Zürich, 1859); Vigfusson and Powell's Corpus Poeticum Boreale (2 vols., Oxford, 1883); Paul's Grundriss der germanischen Philologie, 1 Bd., 5 Lfg. (article _Mythologie_, by E. Mogk); Grimm's Teutonic Mythology (translated by Stallybrass, 3 vols.); Werner Hahn's Das Nibelungenlied; Lang's Myth, Ritual, and Religion (2 vols., London, 1887), and _Mythology_ (Encyc. Brit., Vol. 9); Tylor's Anthropology (New York, 1881) and Primitive Culture (2 vols.); J. W. Powell's Annual Reports of the Bureau of Ethnology (7 vols., beginning 1879-1880, Washington, D.C.); Keary's Outlines of Primitive Belief; Fiske's Myths and Myth-makers (Boston); Whitney's Oriental and Linguistic Studies; W. P. Johnston's The Origin of Myth; and of other works to which due reference is made in the footnotes and Commentary. The student is also referred to F. B. Jevons' edition of Plutarch's Romane Questions, translated by Philemon Holland (London, 1892) (introduction on Roman Mythology); and to C.G. Leland's Etruscan-Roman Remains in Popular Tradition (London, 1892). The Maps, furnished by Messrs. Ginn and Company from other of their publications, have, with the kind consent of the authors of those works, in some instances been adapted by me to suit the present purpose.