PULLING SHIELDS ON LONGWALL FACE, AFTER PRESSURIZING SHIELD AGAINST ROOF LOOKED TO SEE WHERE TO START AND FINISH BANK PUSH. A PIECE OF ROCK FELL BETWEEN SHIELDS AND STRUCK HIS LEFT INDEX FINGE R. THE LACERATION CAUSED WHEN HIS FINGER WAS STRUCK BY FALLING MATERIAL REQUIRED 11 SUTURES. VICTIM WORKED HIS NEXT SCHEDULED SHIFT.