GALLON, a measure of capacity both for dry and liquid things, containing four quarts. But these quarts, and consequently the gallon itself, are different, according to the quality of the thing measured: For instance, the wine-gallon contains 231 cubic inches, and holds eight pounds averdupois of pure water; the beer and ale gallon contains 281 solid inches, and holds ten pounds thereof ounces and a quarter averdupois of water; and the gallon for corn, meal, &c. 272½ cubic inches, and holds nine pounds thirteen ounces of pure water.