into the bowels of the earth, or running horizontally along some great seam of coal, or rising vertically toward the surface again.
At length all was ready. Perry bowed his head in prayer. For a moment we were silent, and then the old man's hand grasped the starting lever. There was a frightful roaring beneath us—the giant frame trembled and vibrated—there was a rush of sound as the loose earth passed up through the hollow space between the inner and outer jackets to be deposited in our wake. We were off!
The noise was deafening. The sensation was frightful. For a full minute neither of us could do aught but cling with the proverbial desperation of the drowning man to the handrails of our swinging seats. Then Perry glanced at the thermometer.
"Gad!" he cried, "it cannot be possible—quick! What does the distance meter read?"
That and the speedometer were both on my side of the cabin, and as I turned to take a reading from the former I could see Perry muttering.
