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Rh reason why the mere layman is always ready to be surprised at strangeness, whereas the professional, who can detect the ever-exquisite relation of effect and cause, is seldom astonished, never long at a loss.

In the sphere of science, for instance, the sudden discovery of an X-ray, or the first flight of an aeroplane, sends a thrill of wonder through every honest reader of his morning's newspaper. But do you think that the man behind the scenes is so easily moved? Of course not. For to him the discovery is a triumph perhaps, but not an unexpected triumph, and never anything more marvellous than the success which crowns a long series of experiments, begun and continued, or naturally evolving to a particular end. And in art it is just the same.

Take such a movement as that which 77