Show western ra I 1 roads protest chicago A petition was filed in the united baates circuit court here on tuesday by seven western rail roads asling asking an order restraining the interstate commerce commission from enforcing its order beduch g the class rates on merchandise shipped from chicago and st louis to denver the will become effective june I 1 the railroads insist the new nates rates will gave chicago an addan tage of 25 cents a hundred in rates over missouri river shippers and an a 01 an advantage to st louis louls shippers 0 23 cents |