Another class of mixed drinks, and one which is now very common, is known as highball. The highball in its simplest conception is not a mixed drink at all, except in the mixing of water with the alcoholic beverage. The highball is served in a tall glass, the whisky, brandy or gin being first poured into the glass with, usually, a lump of ice, and the glass is then filled with soda water or seltzer or some carbonated beverage. There are certain forms of highballs which are made on the same principle as cocktails, but these are not the real article.