İn the present paper an attempt was ınade to determine the coeffioient of space absorption in the direction of the movİDg Perseus group. The opinion of Smart is confirmed that the group is not a moving cluster. For a a value of a = 0,00103 mag/parsec is obtained. The absolute magnitudes resulting from the method appKed in this paper seem to be over- estimated. The main uncertainty in the values of the absorption coefficient and of the absolute magnitudes is due to imperfect knowledge of the mean space velocity of the stars under consideration. The main conciusion is that the method for the determination of a as developed in a previous paper promised to lead to good results.