The well-timed answer raised my spirits; I thought again that in this man, despite his repulsive shape, I beheld a friend, a brother; suspicion vanished, and my courage rose. He touched the lever, and the craft, subject to his will, nearly rose from the water, and sped with amazing velocity, as was evident from the appearance of the luminous road behind us. So rapid was our flight that the wake of the boat seemed as if made of rigid parallel lines that disappeared in the distance, too quick for the eye to catch the tremor. Continuing his conversation, my companion informed me that he had now directed the bark toward a point east of the spot where we struck the shore, after crossing the lake, in order that we might continue our journey downward, diagonally to the under surface of the earth crust. "This recent digression from our journey proper," said he, "has been made to acquaint you with a subject, regarding which you have exhibited a curiosity, and about which you have heretofore been misinformed; now you understand more clearly part of the philosophy of volcanoes and earthquakes. You have yet much to learn in connection with allied phenomena, but this study of the crude exhibition of force-disturbed matter, the manipulation of which is familiar to man under the above names, is an introduction to the more wonderful study destined yet to be a part of your field, an investigation of quiescent matter, and pure motion." "I can not comprehend you," I replied, "as I stated once before when you referred to what you designated as pure motion." CHAPTER XXXII. MATTER IS RETARDED MOTION.