been known; which give him influence here for a time, and sees it followed by the decline of that influence, do not seem to obey any law which we can trace, and are certainly not the product of any conscious action. It is one of the strangest phenomena in history, this odd, spasmodic flood movement of the Jewish race. Is it concerned with commerce? That is one element undoubtedly; that is what explains the exploitation of England by Jews after the Conquest, of Spain in the later Middle Ages, of the Valley of the Rhine; but then, why not other commercial centres as an attraction? Venice was not one, though the Jew was well tolerated there; nor was Paris after the early Middle Ages, and while some of the Dutch towns formed such centres of attraction the Belgian towns did not.
Was it asylum? That would account, of course, for the great influx of Jews into mediaeval Poland, but then why not into eighteenth century England? Why not until very late in the nineteenth century? England, which gave the Jews a more complete civic position than he could find