It is possible easily to obtain water of a reasonable degree of refrigeration, say, 5o°F., without the addition of ice directly. This can be done by the very simple device, which is in common use, of placing a moderate amount of ice external to the exit tube through which the water supply is [drawn. The Fig. 2 shows a simple construction which permits the cooling of water in a moderate manner without bringing the ice into contact therewith. As is shown in the figure, the water is contained in a glass bottle, which is inverted into the funnel-shaped receptacle, tilling it so as to seal the mouth of the bottle. As the water passes from the mouth of the bottle through the conduit, it is cooled by the ice exterior thereto. The quantity of ice may be so adjusted as to prevent the water from reaching a temperature lower than 50o. As the water is drawn off air enters and takes the place of the water in the bottle. This principle is well known to chemists, and the apparatus is known as Mariotte's bottle. The common habit in this country of placing cracked ice in the glass is greatly to be deplored. Any one will enjoy drinking water far more by having it at a medium temperature, and the risk of injury is far less.