It is shown that the samples of Seyfert galaxies used to study different pa
rameters of Seyferts are largely incomplete. The way of estimation of the n
umber of the missed, not detected Seyferts is proposed. It is based on the
assumption that distribution of inclinations of Seyferts should be similar
to that of spiral galaxies. Addition of the estimated number of the missed
Seyferts allows to deduce more correct value of the ratio of numbers of Sy2
s to Sy1s, N2/N1. The more real value of the ratio N2/N1 is the one deduced
by using the results of counts of bright, nearby Seyferts, and is equal to
similar to 4.0. The opening angle of the dust torus is similar to 76 degre
es.