Le tour de la France par deux enfants / Devoir et Patrie

Two orphaned brothers leave their Lorraine town and travel across the country to fulfill a family duty, encountering hospitality, danger, and fatigue. Their voyage alternates storytelling with didactic chapters that describe regional geography, agriculture, industry, local crafts, and notable natives, using concrete scenes to teach economic, scientific, and civic concepts. Episodes emphasize moral lessons—responsibility, labor, and patriotism—while illustrated vignettes explain practical knowledge about resources and technologies, aiming to make the nation's territory and duties visible and engaging for young readers.