The purpose of the article under review is to use the kinetic equation for studying the forced vibrations of a vertically stratified gas in a gravitational field for given types of excitation on the boundaries. For describing the propagation of boundary disturbance in a stratified gas for arbitrary Knudsen numbers, the authors reduce the integrodifferential BGK equation to a closed system of integral equations for the first five moments of the distribution function. An important step in obtaining the results is to use an approximate form of the collision integral in order to close the system of moment equations for the gas in a gravitational field by integrating along parabolic characteristics.