  A method for detecting voids in the galaxy distribution is presented. Using
this method, we have identified 732 voids with a radius of the seed sphere
Rseed > 4.0h^{-1}Mpc in a volume-limited sample of galaxies from the southern
part of the 2dFGRS survey. 110 voids with Rseed > 9.0h^{-1}Mpc have a positive
significance. The mean volume of such voids is 19000 h^{-3}Mpc^3. Voids with
Rseed > 9.0h^{-1}Mpc occupy 55% of the sample volume. We construct a dependence
of the volumes of all the identified voids on their ranks and determine
parameters of the galaxy distribution. The dependence of the volume of voids on
their rank is consistent with a fractal model (Zipf's power law) of the galaxy
distribution with a fractal dimension D ~ 2.1 (given the uncertainty in
determining the dimension using our method and the results of a correlation
analysis) up to scales of 25h^{-1}Mpc with the subsequent transition to
homogeneity. The directions of the greatest elongations of voids and their
ellipticities (oblateness) are determined from the parameters of equivalent
ellipsoids. The directions of the greatest void elongations have an enhanced
concentration to the directions perpendicular to the line of sight.
