A practical school manual that first outlines basic anatomy and bodily functions—circulation, digestion, respiration, and perspiration—and then gives concrete hygiene instruction. Subsequent chapters apply those principles to water safety, food selection and market arrangement, household cleanliness, clothing care and drying, personal grooming and bathing, infant care, and waste disposal. It emphasizes prevention of disease through proper ventilation, safe wells and pumps, orderly markets, and public sanitation, using clear descriptions and illustrations to teach children and teachers how everyday habits and home and community arrangements affect health.