"Since the Colonel ate his hat the Lunatic Asylum has lacked a background."

The conscientious scribe cannot but be aware that the above sentence, standing alone and without reference to previous matters, may not entirely explain itself. Anyone trying the experiment of using that sentence for practical social purposes; tossing that sentence lightly as a greeting to a passer-by; sending that sentence as a telegram to a total stranger; whispering that sentence hoarsely into the ear of the nearest policeman, and so on, will find that its insufficiency as a full and final statement is generally felt. With no morbid curiosity, with no exaggerated appetite for omniscience, men will want to know more about this statement before acting upon it. And the only way of explaining it, and the unusual circumstances in which it came to be said, is to pursue the doubling and devious