[en] It is currently believed that pulsars are rapidly rotating neutron stars possessing very intense magnetic fields and hence the equation of state as well as the magnetic properties of the neutron star matter are of a considerable interest. These have been calculated for the Reid hard and soft core potentials. The rearrangement contributions, which are negligible at lowest density, being important at the highest densities considered, was calculated using the approximation of Brueckner and Gammel. In contrast to the case of liquid ³He, where the lowest order Brueckner theory seems to be inadequate, this approximation when applied to neutron matter leads to the results, which are in agreement with the results obtained within the frame of the Landau theory of Fermi liquid. No sign of a tendency to a transition to ferromagnetic state was found. (Auth.)