Yonder is Mars, 260,000,000 miles away. Travels around the sun once in 687 days, or about two years, going at the speed of 49,000 miles an hour. Who knows but that it is inhabited by a race unsullied by sin, untouched by death? Yonder another, old Jupiter, champion of the skies, sashed and belted around with vapors of light. Jupiter, 480,000,000 miles away, travels around the sun once in twelve years, going at the speed of 30,000 miles an hour. I need something faster than an express train, going fifty miles an hour, or a cyclone, going one hundred miles an hour. If I could charter a Pullman palace car and couple it to a ray of light, which travels at the speed of 192,000 miles a second--if I could attach my Pullman palace car to a ray of light, I could go to Jupiter and get back tomorrow morning for breakfast at nine o'clock, but Jupiter is one of our near neighbors. Yonder is old Saturn, 885,000,000 miles away. Travels around the sun once in twenty years, going at the speed of 21,000 miles an hour. Away yonder, I catch a faint glimmer of another stupendous world, as it swings in its tireless and prodigious journey. Old Uranus, 1,780,000,000 miles away. Travels around the sun once in eighty-four years, going at the speed of two hundred and fifty miles an hour. As the distance of the planets from the sun increases, their velocity in their orbit correspondingly decreases. I say is that all? I hurry to Chicago and take the Northwestern. I rush out to Lake Geneva, Wisconsin, I climb into the Yerkes observatory, and I turn the most ponderous telescope in the world to the skies, and away out on the frontier of the universe, on the very outer rim of the world, I catch a faint glimmer of Neptune, 2,790,000,000 miles away. Travels around the sun once in one hundred and sixty-four years, going at the speed of two hundred and ten miles an hour. If I could step on the deck of a battleship and aim a 13-inch gun, and that projectile will travel 1,500 miles in a minute, it would take it three hundred and sixty years to reach that planet. Away out yonder is Alpha Centauri. If I would attach my palace car to a ray of light and go at the speed of 192,000 miles a second, it would take me three years to reach that planet. An express train, going thirty miles an hour, would be 80,000,000 years pulling into Union depot at Alpha Centauri. Yonder, the Polar or the North star. Traveling at a rate of speed of 192,000 miles a second, it would take me forty-five years to reach that planet. And if I would go to the depot and buy a railroad ticket to the North star, and pay three cents a mile, it would cost me $720,000,000 for railroad fare to go to that planet.