Is your mind expanding? are your views enlarging, so as to enable you to comprehend its vast dimensions? Let the revelations of astronomy assist you. Look at it again. From the comparatively small size of its disk as we see it from the Earth, the distance must be vast indeed to dwarf it down thus. The distance is great, no less than about _ninety-five millions of miles_. It is three hundred and eighty-five times as far away as the Moon: it is estimated that a cannon ball fired from this Earth and keeping up its velocity at the rate of _five hundred miles an hour_, would not reach it in less time than about twenty-two years. Still, though these are well demonstrated facts, ascertained by very correct measurement, by the most scientific mathematical surveyors of the heavens, yet we desire some more plain or familiar illustration. Let us investigate. Here we have it; are you ready for a journey? The celebrated Braley has calculated the time required for a trip of ocular exploration. He observes, "A railway train starting from this Earth, and running continuously, at the rate of _thirty miles an hour_, would arrive at the Moon in eleven months, but would not reach the Sun in less time than about _three hundred and fifty-two years_." We can partially comprehend this by calculation (although the years of the oldest individual of our country have not been sufficient to take him more than one third of the journey, even had he been placed on such train and started when an infant at his mother's breast). Had the train been started only nineteen years later than the discovery of North America by Columbus, in 1498, and travelled thirty miles each hour since, it would just now be approaching the border of the Sun, and, on arriving there, if a tunnel was opened and a track laid direct through it, "this train, continued at the same speed, would require more than a year and a half to reach the Sun's centre; three years and a half to pass through it, and more than ten years to pass round it. "Now this same train would attain the centre of this Earth in five days and a half; pass through it in eleven days; and go round it in about thirty-five days." Thus you see the diminutiveness of this Earth as compared to the Sun. These calculations are founded on facts so clearly demonstrated by the science of astronomy, that but few who examine into it will question their approximation to correctness. Now while the mind is somewhat familiarized with that vast globe, the Sun, let us contemplate it further.