This is a 19th-century scholarly introduction to a collection of Basque oral folk legends, written within the Victorian tradition of comparative mythology associated with solar mythology and philological analysis. The authors argue that the Basques — ethnically and linguistically isolated from other European peoples, with a largely unwritten language — offer a uniquely valuable test case for tracing how ancient myths (originally encoding natural phenomena like sunrise, storms, and celestial movements) survive and transform across time and cultures. They explain how the legends were gathered from peasant storytellers during communal maize-husking sessions and winter hearth gatherings, and note that their informants believed these tales as literal historical fact, placing them in a pre-Christian "ancient law" era. The collection is organized into seven categories including Cyclops figures (the Tartaro), the seven-headed serpent (Heren-Suge), fairies (Lamiñak), and religious tales, with the authors candidly acknowledging the legends are heavily mixed with French and Spanish influences rather than purely Basque. A distinctive claim is that the oldest and most widely distributed legends are also the most distorted, and that apparent anachronisms — gunpowder, the guillotine, maize — are merely modern dress on ancient mythological bodies. The authors also note striking parallels between Basque star names and those recorded in Indian folklore collections, which they cite as evidence of universal mythological patterns across unconnected peoples.