45 N.W.2d 245 MAY’S DRUG STORES, INC., appellee, v. STATE TAX COMMISSION et al., appellants. No. 47696.Supreme Court of Iowa. December 12, 1950. Rehearing Denied February 9, 1951. CONSTITUTIONAL LAW: Statutes prohibiting acts threatening free 1 competition — police power. The legislature under its police power has the right in the interest of public welfare […]