INTRODUCTION

valuable demographic study of the Swedish nobility, Der Adel Schwedens. "Apparently," says Fahlbeck, "the greater demands on nervous and intellectual force which the culture and refinement of the upper classes produce are chiefly responsible for this. For these are the two personal factors by which those classes are distinguished from the lower classes: high education and refinement in tastes and habits. The first involves predominant activity of the brain, the last a heightened sensitiveness in all departments of nervous life. In both respects, therefore, there is increased work for the nervous system, and this is compensated in the other vital functions, especially reproduction. Man cannot achieve everything; what he gains on one side he loses on the other." We should do well to hold these wise words in mind when we encounter those sciolists who in the presence of the finest and rarest manifestations of civilizations, can only talk of race "decay." A female salmon, it is estimated, lays about nine hundred eggs for every pound of her own weight, and she may weigh fifty pounds. The progeny of Shakespeare and Goethe, such as it was, disappeared in the very centuries in which these great men themselves died. At the present stage of civilization we are somewhat nearer to Shakespeare and Goethe than to the salmon. We must set our ideals towards a very different direction from that which commends itself to our Salmonidian sciolists. "Increase and multiply" was the legendary injunction uttered on the threshold of an empty world. It is singularly out of place in an age in which the earth and the sea, if not indeed the very air, swarm with countless myriads of undistinguished and indistinguishable human creatures, until the beauty of the world is befouled and the glory of the Heavens bedimmed. To stem back that tide is the task now imposed on our heroism, to elevate and purify and refine the race, to introduce the ideal of quality in place of the ideal of quantity which has run riot so long, with the results we see. "As the Northern