     }
 
     var imperialValues: [NSDictionary] {
-        return [["name": "Stone", "abbreviation": "st"],
-                ["name": "Pound", "abbreviation": "lb"],
+        return [["name": "Pound", "abbreviation": "lb"],
                 ["name": "Ounce", "abbreviation": "oz"]]
     }
 

        switch toUnit {
        case "ml":
            return fromValue * 3785.41
        case "l":
            return fromValue * 3.78541
        default:

        switch toUnit {
        case "ml":
            return fromValue * 473.176
        case "dl":
            return fromValue * 4.73176
        case "l":
            return fromValue * 0.473176
        default:
