Remarks on the methods of investigations of alignment of galaxies
  In the 1975 Hawley and Peebles gave the proposal to use three statistical
tests for investigations of the galaxies orientation in the large structures.
Nowadays, it has been considered as the standard method of searching for
galactic alignments. In the present paper we analyzed the tests in details and
proposed a few improvements. Basing on the improvements, the new method of
analysis of the alignment of galaxies in clusters is proposed. The power of
this method is demonstrated on the sample of 247 Abell clusters with at least
100 objects in each. The distributions of the position angles for galaxies in
each cluster are analyzed using statistical tests: $\chi^2$, Fourier,
autocorrelation and Kolmogorow test. The mean value of analyzed statistics is
compared with theoretical predictions as well as with results obtained from
numerical simulations. We performed 1000 simulations of 247 fictious clusters,
each with numbers of galaxies the same as the real ones. We found that
orientations of galaxies in analyzed clusters are not random i.e. that there
exists an alignment of galaxies in rich Abell galaxy clusters.
