
    Thomas Brown et al., appellants, v. Guy A. Richardson et al., trading as Chicago Surface Lines, appellees.
    Gen. No. 40,481.
    Opinion filed March 29, 1939.
    Frank E. Auster, for appellants. Frank L. Kriete, Anson H. Brown and Arthur J. Donovan, for appellees; John R. Guilliams, of counsel.
   Mr. Justice Burke

delivered the opinion of the court.  