Show 4 I I. I C. C C. C Refuses Reuses Change in Southwestern Rates I W WASHINGTON March 21 A ABy AP By By a supplementary decision today today to to- to day the tho Interstate commerce commission commission com corn mission refused to make any substantial substantial sub sub- changes in the general schedules of ot class and commodity freight rates which it ordered into effect for tor southwestern territory last April The entire structure of or freight rates Into out of of- and h southwestern rn territory was was was-nm materially materially mate mate- i by the April decision decision deci deci- sion zion and as a result all of the carriers carriers carriers car car- and a considerable proportion of ot the shipping interests affected petitioned tho the commission for modification modification mod mod- in part or in whole of its Us rate reconstruction program |