The legal questions involved in this appeal are identical with those dealt with in State ex rel. Milwaukee Sewerage Commission v. Board of Supervisors of Milwaukee County, ante, p. 412, 248 N. W. 454, and the disposition of that case governs this appeal, and compels a reversal of the order.

By the Court. — Order reversed, and cause remanded with directions to- sustain the demurrer to the return, and for further proceedings according to law.