Martin had heard Herbert Spencer quoted several times in the park, but one afternoon a disciple of Spencer's appeared, a seedy tramp with a dirty coat buttoned tightly at the throat to conceal the absence of a shirt. Battle royal was waged, amid the smoking of many cigarettes and the expectoration of much tobacco-juice, wherein the tramp successfully held his own, even when a socialist workman sneered, "There is no god but the Unknowable, and Herbert Spencer is his prophet." Martin was puzzled as to what the discussion was about, but when he rode on to the library he carried with him a new-born interest in Herbert Spencer, and because of the frequency with which the tramp had mentioned "First Principles," Martin drew out that volume.
So the great discovery began. Once before he had tried
