Show CONTINUES BAN ON POTASH Germany Refuses to Alter Embargo at Request of United States Washington Efforts Efforts of the United States government to obtain concessions concessions conces conces- from Germany which would permit permit permit per- per mit the importation of German potash failed it became known here Friday when American officials were advised that Germany would make no alteration of her embargo Negotiations Negotiations Negotiations had been in progress since the outbreak of th the Euro European an war |