hey were not quite satisfied, but neither were they certain what they ought to do, and for once displayed common sense by doing nothing. When the door closed after us I saw that Buchannon, the Washington laboratory assistant, was with us. He must have arrived with the second Farrel, although I had not observed him during the confusion attending the former's unexpected appearance. But Drayle had noted him and now seized his shoulders. 'Explain!' he demanded.
"Buchannon's face went white and he shrank under the clutch of Drayle's fingers. Beyond them I saw the two twinlike men standing beside Mrs. Farrel, surveying each other with incredulous recognition and distaste.
"'Explain!' roared Drayle, and tightened his grasp.
"'I thought you said Washington, Chief.' His voice was not convincing. I didn't believe him, nor did Drayle.
"'You lie!' he raged, and floored the man with his fist.
"In a way I couldn't help feeling sorry for the chap. It must have been a frightful temptation to participate in the experiment and I suppose he had not forseen the consequences. But I began to have a glimmering of the magnificent possibilities of the invention for purposes far beyond Drayle's intent. For, I asked myself, why, if such a machine could produce two human identities, why not a score, a hundred, a thousand? The best of the race could be multiplied indefinitely and man could make man at last, literally out of the dust of the earth. The virtue of instantaneous transmission which had been Drayle's aim sank into insignificance beside it. I fancied a race of supermen thus created. And I still believe, Sergeant, that the chance for the world's greatest happiness is sealed within that box you guard. But its first fruits were tragic."
The historian shifted his position on the bench so as to escape the sun that was now reflected dazzlingly by the polished steel casket.