We may begin by asserting with confidence that Mr. Elton has touched upon a part only of the material on which we may draw, to reconstruct the ancient British mythology. Luckily, we are not wholly dependent upon the difficult tasks of resolving the fabled deeds of apocryphal Irish and British kings who reigned earlier than St. Patrick or before Julius Caesar into their original form of Celtic myths, of sifting the attributes and miracles of doubtfully historical saints, or of separating the primitive pagan elements in the legends of Arthur and his Knights from the embellishments added by the romance-writers. We have, in addition to these—which we may for the present put upon one side as secondary—sources, a mass of genuine early writings which, though post-Christian in the form in which they now exist, none the less descend from the preceding pagan age. These are contained in vellum and parchment manuscripts long preserved from destruction in mansions and monasteries in Ireland, Scotland, and Wales, and only during the last century brought to light, copied, and translated by the patient labours of scholars who have grappled with the long-obsolete dialects in which they were transcribed. Many of these volumes are curious miscellanies. Usually the one book of a great house or monastic community, everything was copied into it that the scholar of the family or brotherhood thought to be best worth preserving. Hence they contain matter of the most diverse kind. There are translations of portions of the Bible and of the classics, and of such then popular books as Geoffrey of Monmouth’s and Nennius’ Histories of Britain; lives of famous saints, together with works attributed to them; poems and romances of which, under a thin disguise, the old Gaelic and British gods are the heroes; together with treatises on all the subjects then studied—grammar, prosody, law, history, geography, chronology, and the genealogies of important chiefs. The majority of these documents were put together during a period which, roughly speaking, lasted from the beginning of the twelfth century to the end of the sixteenth. In Ireland, in Wales, and, apparently, also in Scotland, it was a time of literary revival after the turmoils of the previous epoch. In Ireland, the Norsemen, after long ravaging, had settled peacefully down, while in Wales, the Norman Conquest had rendered the country for the first time comparatively quiet. The scattered remains of history, lay and ecclesiastical, of science, and of legend were gathered together.