BOLIVIAN TROOPS RING MINING CAMP HOLDING CAPTIVES; Paz Estenssoro Denies He Asked U.S. for Weapons to Subdue Leftists Open to Mediation 16 Bolivians Also Held BOLIVIAN TROOPS RING MINING CAMP Railway Center Occupied
troops ring mining camp where hostages are held; Paz denies asking US arms; confs with Henderson; Lechin offers to accept mediation; Henderson wires him that US holds him responsible for hostages safety; armed peasant militiamen reinforce troops