Show TREASURY MEN THREATEN RETEN I f TO JOiN JON CUBAN STRIKE I HAVANA VANA Aug 14 H A A strike of 01 Cubas Cuba's postal and communications grew more serious today astre as tre treasury ur department workers some ib bu bus and trainmen and a 1 group of workers threatened to join it Pock Dock workers who walked out severa several sev- sev era eral months ago and were later re employed were riled over the tile arrest c ot 23 33 jobless s companions who woo tried U force force companies companies to take them back backi i J and trainmen were report report- e b planning to strike unless the arr ar- ar r red ted are released |