s passing ofl intothe air in the form of vapour. WHY THE WIND BLOWS (See Tropical Readers, Book II, pp. 169-171.) Expt. 195. Air expands whenHeated.—Fit up a flask as shown infig. 32; heat gently, and observe thatthe hot air expands as shown by therising of the drop of water. Expt. 196. Warm Air… … Fig. 32.—Expansionof Air when heated 6 82 COMPANION TO TROPICAL READERS diameter by pasting paper over a very light framework;put two fine wires crossing one another at the openingat the bottom; tie a sponge where the wires meet, andsaturate it with alcohol; set fire to the sponge and theballoon…
Nature study -- Juvenile literature · Natural history -- Tropics · Natural history -- Jamaica
Internet Archive · Biodiversity Heritage Library · Public Domain Mark 1.0. Free to use for anything.
