This is a series of lectures on chemistry originally given to children as an entertaining alternative to teaching science. LECTURE I. A CANDLE: THE FLAME--ITS SOURCES--STRUCTURE--MOBILITY--BRIGHTNESS LECTURE II. BRIGHTNESS OF THE FLAME--AIR NECESSARY FOR COMBUSTION--PRODUCTION OF WATER LECTURE III. PRODUCTS: WATER FROM THE COMBUSTION--NATURE OF WATER--A COMPOUND--HYDROGEN LECTURE IV. HYDROGEN IN THE CANDLE--BURNS INTO WATER--THE OTHER PART OF WATER--OXYGEN LECTURE V. OXYGEN PRESENT IN THE AIR--NATURE OF THE ATMOSPHERE--ITS PROPERTIES--OTHER PRODUCTS FROM THE CANDLE--CARBONIC ACID--ITS PROPERTIES LECTURE VI. CARBON OR CHARCOAL--COAL GAS--RESPIRATION AND ITS ANALOGY TO THE BURNING OP A CANDLE--CONCLUSION