Opinion by
Hot to be published in full.
Gen. No. 45,307.
*268Opinion filed April 9, 1951;
released for publication May 7, 1951.
John J. Mortimer, Acting Corporation Counsel of City of Chicago, for appellants; L. Louis Karton, Head of Appeals and Review Division, and John J. Steffens, Assistant Corporation Counsel; Claude W. B. Holman, William P. Rhetta, Jr., and Ellis & Westbrooks, for appellee; Claude W. B. Holman, of counsel.
Opinion by
Hot to be published in full.