93 N.W.2d 94 CITY OF MASON CITY, appellant, v. E.L. ZERBLE, appellee. No. 49595.Supreme Court of Iowa. November 18, 1958. MUNICIPAL CORPORATIONS: Creatures of legislature — powers 1 exercised. Municipal corporations are wholly creatures of the legislature and possess and can exercise only powers expressly granted by the legislature, or those necessarily implied in or […]