Experiments investigating the properties of air.
"A few facts about the most valuable gas in the world." Introductory intertitle reads: "Air is the breath of life - but what else! Power is the answer! Place a bit of alcohol-soaked cotton in a bottle and let it burn - "
C/U of a huge glass jar. The piece of alcohol soaked cotton is lit and placed inside the glass jar. "The flame "thins" the air. Now, plug the bottle neck with, say a "shelled" hard-boiled egg -" The egg is dragged down into the bottle through the power of the atmosphere pressing down on the egg. Oxygen becomes visible when it appears in bubbles through a liquid. C/U of three test tubes with air being pushed through liquid.
"Pure oxygen is such a powerful fire accessory that steel wire inside a bottle filled with oxygen will burn like a match!" "Phosphorus burns in oxygen with a brilliant flame - " C/U of a piece of phosphorus being burned in oxygen. We are then shown a sequence where liquid air is put inside a kettle, the kettle is placed on ice, and the liquid air will boil because of the comparative heat in the ice! C/U of a hand holding a small teapot on top of a piece of ice. Steam comes out of the kettle. We are shown how liquid air freezes anything it touches. A flower is put into a container of liquid air - it comes out frozen. Tweezers are used to show how the petals are frozen.
Was an item in Pathe Pictorial issue number 684.