It makes no difference if the law does not specify this ultimate determination which actuality requires, but leaves it to the judge to decide and simply limits besclzribzkt him to a maximum and minimum; for the maximum and minimum will themselves be round numbers of this kind, and they do not remove hebt es lIicht azifJ the need for the judge to arrive at a finite and purely positive determination of the kind referred to, but assign it to him as a necessary task.