Attorney:
[288 Mich. 522] Joseph Zwerdling, of Ann Arbor, for appellants. Thomas Read, Atty. Gen., and Edmund E. Shepherd and Kenneth G. Prettie, Assts. Atty. Gen., for appellees.
Judge Panel:
BUTZEL, C.J., and WIEST and NORTH, JJ., concurred with POTTER, J. SHARPE, CHANDLER, and McALLISTER, JJ., concurred with BUSHNELL, J. SHARPE and McALLISTER, JJ., concurred with CHANDLER, J.