C ELM1B               COURANT-SNYDER PARAMETERS
C
C BETAX         HORIZONTAL BETA FUNCTION
C ALPHAX        HORIZONTAL ALPHA FUNCTION
C EPSX          HORIZONTAL EMITTANCE
C BETAY         VERTICAL BETA FUNCTION
C ALPHAY        VERTICAL ALPHA FUNCTION
C EPSY          VERTICAL EMITTANCE
C
      COMMON /ELM1B/  BETAX, ALPHAX, EPSX, BETAY, ALPHAY, EPSY