I then informed him that our greatest and most daring electrician, Nicola Tesla, was firmly convinced that he had discovered planetary disturbances of an electrical nature which had reached our world. This occurred as far back as the year 1899; and, in the course of later scientific investigations, he found that the disturbances could not have come from the sun, the moon, or Venus. Further study has, he says, quite satisfied him that they must have emanated from Mars. I added that Tesla was at work perfecting an apparatus which he was convinced would be the means of putting him into communication with other planets, by means of a wireless transmitter. This, he states, will produce vibrations of enormous power, and he has devised a means of producing oscillations of the most tremendous intensity. He states that he has actually passed a current round the earth which attained many millions of horse-power, and feels assured that he has already succeeded in producing electrical disturbances on Mars by the aid of this current. "Those disturbances," he adds, "are much more powerful than anything which could be obtained by means of light reflectors, no matter how large such reflectors might be, or how wide an area they might be made to cover." At the same time I pointed out that these are Tesla's own statements, and not mere second-hand reports or newspaper inventions! Merna said that this information was really very gratifying, and gave him the greatest satisfaction; for it showed that the Martians' endeavours to communicate with us would ultimately be successful, because there was at least one man upon the earth capable of devising the necessary apparatus for receiving and transmitting such communications. He further remarked that it was quite true that electrical disturbances had reached Mars from another planet, but added that no effective communication was possible by means of light rays, as the two planets were never so situated in regard to each other as to render such a mode of signalling practicable. I was just about to speak when Merna held up his hand to enjoin silence, and stood as though he were listening attentively to some communication. After a minute or so he told us he had just received a mental communication from Soranho, stating that he had despatched a messenger to us with an urgent letter. Then he added, "We had better wait here until the messenger arrives." "So," I said, "your wireless telegraphy is evidently much in advance of ours, for you seem to dispense with apparatus altogether!" "Yes, sir," he replied; "you see this is one of the senses I told you we Martians possessed; but some of our people who are somewhat deficient in this sense still use the small pocket receivers and transmitters which have long become obsolete amongst the generality of our population.