ok II, pp. 166-169.) Expt. 190. Composition of the Atmosphere.—Showthe presence of the following in the air:— (a) Oxygen.—Fan some smouldering coals, and notethat the fresh supply of oxygen thus brought to thecoals causes them to burn more brightly. (b) Nitrogen.—Burn a small bit of phosphorus… … Fig. 31.—Preparation ofNitrogen show that it will neither support combustion nor take fire. (c) Carbon Dioxide.—Expose a saucer (preferably a blue one) containing some freshly-made lime-water to the air for anumber of hours. Observe themilky precipitate found on thesurface. (d) Water Vapour.—Put a…
Nature study -- Juvenile literature · Natural history -- Tropics · Natural history -- Jamaica
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