Table 1:
Populations of the "normal'' Es ( Nop subsample). The correlations between the central velocity dispersion and the various colour-indices are given in the form y=px+y0, where
(1) Index; (2) Number of objects (not taking into account the 1 to 3 rejected by the least squares routine); (3) Mean value
(4) Slope p; (5) Intercept y0; (6) Standard deviation ;
(7) Coefficient of correlation .