Air Air (continued) Ashes—Potash The Atmosphere Bread Calico Chestnuts Chocolate Clothing Coal and Coal-Gas Codfish Coffee Combustion Distillation Double Boiler Dyeing and Printing Dyestuffs Evaporation Fire Flax and Hemp Flies The Force of Steam Germs Glass The Grist Mill Heat-Conduction Heating Human Habitations Humidity in the Atmosphere Ice Impure Air Iron Kerosene Oil Light Lighting Little Pests Matches Moths Napery Needles Olive Oil Other Wheat Products Pebbles Pins Pottery Rain Rice Rust Salt Silk Snow Soap Sound Sound (continued) Spices Strange Uses of Starch Sugar Tea Thread The Three States of Matter Tin-Plating Vinegar Water Water (continued) Weaving Wood and Charcoal Wool Woolen Cloth