A practical handbook explaining principles and practices of personal and public hygiene, covering food and dietetics, water supply, impurities and purification, air composition and ventilation, house construction, drainage, sewage disposal and trade nuisances, meteorological observations, personal hygiene (exercise, rest, cleanliness, clothing), parasitic vectors and infective diseases including tuberculosis, together with notification, isolation, disinfection, and vital-statistics methods; it emphasizes sanitary inspection, preventive measures, and problem-solving through numerical examples and illustrations, presented largely without technical jargon to serve students, sanitary officers, and general readers.