  The results of linear regresion of differential cross sections, $\Sigma$- and
$T$-asymmetries of $\eta$-photoproduction on protons in energy region from
threshold up to 1 GeV are presented. Serious contradictions between angular
distributions measured in different laboratories are revealed. The energy
dependance of regression coefficients may be due to transition from energy
region of $S_{11}(1535)$ and $D_{13}(1520)$ to energy region of $D_{15}(1675)$
and $F_{15}(1680)$ resonances.
