Clipped From The Indiana Weekly Messenger
gallons of water, but only ten gallons are put in, room being reserved for the mixture of .the _.gas with the water. This combination is effected by agitating the water in the retort by subjecting the retort to a kind of oscillating movement by which each end, is raised and lowered alternately and the water thrown from- one end to the other. An agitation of some ten or twelve minutes usually suffices to change the •water under pressure, which has increased in the operation by about two gallons, or one-fifth. It may here be stated that the soda water of to-day is quite a different affair from what it was in former years. Then ordinary service water, and in some cases spring water, was used. Now only distilled water is used to be impregnated with carbonic acid gas. This water is produced from a steam boiler, and is well known, by condensation from the steam, the latter being run into a cooling chamber or condenser, where the heat is abstracted from It by running cold water over the surface. The distilled water when first condensed is at a high temperature, and, to cool it, it is run through Coils in an ice box which are snrrouned With ice. When water is warm or hot it will not take up the carbonic acid gas, and the lower, its. temperature the more readily the latter will combine with it. Now from this source—the soda fountain—is derived the great bulk of our summer temperance drinks, and it Is a satisfaction to know that the charged water employed is absolutely pure. Carbonic acid, which is so danger- ons to breathe, appears to have a good. If not a tonic effect on the stomach. In wines and beers, where it is produced by fermenation, it is the life of these drinks, for without it they would be flat" and tasteless to a degree. The art of introducing it artificially into non-alcoholic drinks is ' a great benefit to humanity. The effect ol the extended employment of the soda fountain now is that, if a person is thirsty and wants a cooling effervescing drink, he repairs to the -nearest apothecary store, or place where summer drinks are'dispensed, and calls for any kind of drink he may desire.