And during these nine years since graduation, as we had drifted apart in interests, so had the breach between us been widened by constantly increasing difference in rank. He was a Lieutenant Commander and I a Captain, when in 2024 he announced the discovery and isolation of the Eighth Solar Ray, and within two months those of the Moon, Mercury, Venus and Jupiter. The Eighth Barsoomian and the Eighth Earthly Rays had already been isolated, and upon Earth the latter erroneously called by the name of the former. Orthis’ discoveries were hailed upon two planets as the key to actual travel between the Earth and Barsoom, since by means of these several rays the attraction of the Sun and the planets, with the exception of Saturn, Uranus and Neptune, could be definitely overcome and a ship steer a direct and unimpeded course through space to Mars. The effect of the pull of the three farther planets was considered negligible, owing to their great distance from both Mars and Earth. Orthis wanted to equip a ship and start at once, but again government intervened and forbade what it considered an unnecessary risk. Instead Orthis was ordered to design a small radio operated flier, which would carry no one aboard, and which it was believed could be automatically operated for at least half the distance between the two planets. After his designs were completed, you may imagine his chagrin, and mine as well, when I was detailed to supervise construction, yet I will say that Orthis hid his natural emotions well and gave me perfect cooperation in the work we were compelled to undertake together, and which was as distasteful to me as to him. On my part I made it as easy for him as I could, working with him rather than over him. It required but a short time to complete the experimental ship and during this time I had an opportunity to get a still better insight into the marvelous intellectual ability of Orthis, though I never saw into his mind or heart.