CKISIG    CKISIG    CKISIG    CKISIG    CKISIG    CKISIG    CKISIG    
          **********************************************
                    **************************
                              ******

SUBROUTINE CKISIG (P, T, X, XNUIK, KK, ICKWRK, RCKWRK, SIGI)
Returns the ion species electrical conductivities given
collision frequencies.

INPUT
ICKWRK(*) - Integer workspace array; dimension at least LENICK.
RCKWRK(*) - Real    workspace array; dimension at least LENRCK.
P         - Real scalar, pressure.
               cgs units, dynes/cm**2
T(*)      - Real array, temperature(s); dimension is determined by
            the application program to be the total number of
            species temperatures, nominally 1.
               cgs units, K
X(*)      - Real array, mole fractions of the mixture;
            dimension at least KK, the total species count.
XNUIK(*,*)- Real matrix, momentum-transfer collision frequencies
            for the ions with the species;
            dimension at least KK for the first, the total species
            count, and at least NKKI for the second, the ion count.
KK        - Integer scalar, first dimension of XNUIK.

OUTPUT
SIGI(*)   - Real array, ion electrical conductivities (DC);
            dimension at least NKKI, the total ion count.
               cgs units, GM/CM*S