Democratic Sentinel, Volume 19, Number 36, Rensselaer, Jasper County, 13 September 1895 — A PLEASING' EXPERIMENT. [ARTICLE+ILLUSTRATION]

A PLEASING' EXPERIMENT.

Try It and You May Get Much Amusement from It. Get a wide-mouthed bottle, closed by a hollow cork, in which is Inserted the

pipe of a small glass funnel. By means of sealing-wax make airtight and watertight all the crevices th;it might leak, both between funnel and cork and between cork and bottle. Half fill the bottle with water and throw in two powders that are used to make seltzer water, tartaric acid and bicarbonate of soda, which may be bought at a drug store ready for use. Effervescence will at once take place, throwing off carbonic acid gas, and this will escape through the funnel. But If you have placed within the funnel two or three little balls of elder pith, or even of cork, the gas cannot escape except at intervals, for as one ball is lifted from the orifice another will drop down to close it By painting these balls in different colors you may produce a pretty effect. The effect may be made more beautiful by cutting tissue paper in the form of a butterfly’s wings and gluing them to one of the balls. The balls will dance up and down in the funnel and the imitation butterfly will flutter as If over a flower.

A PLEASING EXPERIMENT.