"That communication was possible through the medium of radium and electricity, we were totally ignorant of. It was the responsive properties of radium in your instrument, however, that first attracted my attention while searching over Paris for an object I had previously been observing. Thereafter my interest in your progress was as great as your own, and every twenty-four hours, when the eastern hemisphere of Earth was turned toward Mars, I searched with the radioscope until I got the response of your instrument. "I have kept my success in communicating with Earth a secret, as it involves an invention of mine which I have not yet made public, and of which I will now tell you. This invention is the radiphone, through which we are now conversing, and to which the diaphragm of your instrument responds, as it doubtless contains radium also. My entire life has been devoted to the development of Martian-Earthly communication, and this instrument has been the goal which I have striven to reach since boyhood, and yet its success in communicating with Earth came as a great surprise to me." So accustomed was I to hear the Martian speak of the most miraculous occurrences in an ordinary conversational tone, that the idea of there still remaining something on Mars to be discovered appeared a still greater wonder. "We have made a most important discovery," pursued Almos. "I say 'we,' as without the response of your instrument the action of a super-radium current on sound-waves would not have been discovered." "I feel that I can hardly share in the honors," I protested modestly. "Without the super-radium current from Mars, I would still be experimenting with the hope of finding a substitute for glass." I now entered into a full account of the experiments I had conducted, describing how, quite accidentally, I had made a substance responsive to the waves from Mars. He was greatly amused upon hearing of my astonishment at finding that Martians resembled the people on Earth; and when I drew for him a verbal picture of the ferocious creatures the inhabitants of Mars were supposed to be, he laughed aloud. "We never suspected that the people of Earth did us such a great injustice," he said, his whole countenance lighting up with good humor. "I have several volumes here giving accounts of observations of Earth, some of them written eight hundred years ago. It would perhaps interest you to hear what the Martian conception of the inhabitants of Earth was at that time." "Indeed it would," I exclaimed, with rising curiosity.