ZAVERL LOUIS J BU MINES HEALTH AND SAFETY REPT JUNE 1962ID NO 70004 15 070 14730HEROD BUREN C FLUORSPAR DEMANDS OF PENNSALT PLANT MET BY NEWMINE EXPANDED MILL PITT AND QUARRYDOES NOT APPEAR ON 80 OR 81 MSHA LISTS; ASSUME PAST PRODUCERRCF LIST 10/81; REPT. NO. 1500116