FIRST 5-HOUR DAY HAILED BY LABOR; Builders Call Electric Pact a Threat to Industry Higher Rents Expected FIRST 5-HOUR DAY HAILED BY LABOR Industry Back to Normal 'Giant Advances' Seen
construction back to normal; labor leaders hail 5-hr day but employers fear threat to indus; cite rept by M Matthews that indus-wide shorter work wk would result in $100-million-a-yr rise in construction costs; hold added cost would be passed on to pub