Show LAGUARDIA MANEUVERS TO SAVE TAX MEASURE NEW YORK Aug 29 UP UP UP-A A swift strategic maneuver by Mayor F F. F H H. H LaGuardia appeared today to have offset greatest danger dancer to his pro pro- for a one half of or 1 per cent tax on n gross croc receipts o of business to raise rabe unemployment relief funds fundo The mayor maor agreed to accept a modification mod mod- of or the measure which has been een under the Intense fire of busl busl- ness ess interests and offered an amendment amendment amend amend- ment which increased the exemption from rom to but imposed a flat lat tax of at 2 a year on all aU businesses grossing up to |