his laboratory. I remember vividly the flickering light, his queer, broad head in silhouette, the dance of the shadows, how we all followed him, puzzled but incredulous, and how there in the laboratory we beheld a larger edition of the little mechanism which we had seen vanish from before our eyes. Parts were of nickel, parts of ivory, parts had certainly been filed or sawn out of rock crystal. The thing was generally complete, but the twisted crystalline bars lay unfinished upon the bench beside some sheets of drawings, and I took one up for a better look at it. Quartz it seemed to be.
"Look here," said the Medical Man, "are you perfectly serious? Or is this a trick—like that ghost you showed us last Christmas?"
"Upon that machine," said the Time Traveler, holding the lamp aloft, "I intend to explore Time. Is that plain? I was never more serious in my life."
