to the validity of that statute. These objections may be all summed up as follows:
(1) It is “class” legislation, in that it gives to persons named by the carriers the exclusive privilege of conducting' the business of dealing in transportation tickets.
(2) It delegates to the carriers the police power of licensing persons to conduct the business of dealing in such tickets.
(3) It deprives the citizen of his property in such tickets without due process of law.
(4) It is an unlawful interference with interstate commerce. .
(5) It discriminates between incorporated and nonincorporated carriers of passengers, because section *7* imposes a penalty on the former, and not on the latter, for refusing to redeem unused tickets.
Before examining the provisions of the act, or entering upon the consideration of these objections, it may be well to refer briefly to a few elementary principles applicable to such cases.
That the transportation of passengers by common carriers is a proper subject of police regulation by the state is unquestioned; and, if a business itself is the subject of police regulation, then so are all its incidents and accessories. That the matter of the issue and transfer of tickets, as evidences of the contracts of the carriers, is an incident and accessory of the business, needs no argument.
And, where a business is a proper subject of the police power, the legislature may, in the exercise of that power, adopt any measures, not in conflict with some provision of the constitution, that it sees fit, provided, only, they are such as have some relation to, and some tendency to accomplish, the desired end; and, if the measures adopted have such relation or tendency, the courts will never
as-j sume to determine whether they are wise, or the best that might have been adopted.
State v.
Donaldson, 41 Minn. 74, (42 N. W. 781;)
Rippe v. Becker, 56 Minn. 100, (57 N. W. 331.)
Furthermore, courts are not at liberty to declare a statute unconstitutional because, in their opinion, it is opposed to the fundamental principles of republican government, unless those principles are placed beyond legislative encroachment by the constitution; or because it is opposed to a spirit supposed to pervade the constitution, but not expressed in words, or because it is thought to be unjust or oppressive, or to violate some natural, social, or political rights of