"Our instruments," he said, "are now so perfect and powerful, as to enable us to ascertain many facts of the deepest interest, with near approaches to positive accuracy. The moon being the heavenly body much the nearest to us, of course we see farther into its secrets than into those of any other planet. We have calculated its distance from us at 237,000 miles. Of course by doubling this distance, and adding to it the diameter of the earth, we get the diameter of the circle, or orbit, in which the moon moves around the earth. In other words the diameter of this orbit is about 480,000 miles. Now could the sun be brought in contact with this orbit, and had the latter solidity to mark its circumference, it would be found that this circumference would include but a little more than half the surface of one side of the sun, the diameter of which orb is calculated to be 882,000 miles! The sun is one million three hundred and eighty-four thousand four hundred and seventy-two times larger than the earth. Of the substance of the sun it is not so easy to speak. Still it is thought, though it is not certain, that we occasionally see the actual surface of this orb, an advantage we do not possess as respects any other of the heavenly bodies, with the exception of the moon and Mars. The light and warmth of the sun probably exist in its atmosphere, and the spots which are so often seen on this bright orb, are supposed to be glimpses of the solid mass of the sun itself, that are occasionally obtained through openings in this atmosphere. At all events, this is the more consistent way of accounting for the appearance of these spots. You will get a better idea of the magnitude of the sidereal system, however, by remembering that, in comparison with it, the distances of our entire solar system are as mere specks. Thus, while our own change of positions is known to embrace an orbit of about 200,000,000 of miles, it is nevertheless so trifling as to produce no apparent change of position in thousands of the fixed stars that are believed to be the suns of other systems. Some conjecture even that all these suns, with their several systems, our own included, revolve around a common centre that is invisible to us, but which is the actual throne of God; the comets that we note and measure being heavenly messengers, as it might be, constantly passing from one of these families of worlds to another."I remember that one of the astronomer's pupils asked certain explanations here, touching the planets that it was thought, or rather known, that we could actually see, and those of which the true surfaces were believed to be concealed from us. "I have told you," answered the man of science, "that they are the Moon, Mars and the Sun. Both Venus and Mercury are nearer to us than Mars, but their relative proximities to the sun have some such effect on their surfaces, as placing an object near a strong light is known to have on its appearance. We are dazzled, to speak popularly, and cannot distinguish minutely. With Mars it is different. If this planet has any atmosphere at all, it is one of no great density, and its orbit being without our own, we can easily trace on its surface the outlines of seas and continents. It is even supposed that the tinge of the latter is that of reddish sand-stone, like much of that known in our own world, but more decided in tint, while two brilliant white spots, at its poles, are thought to be light reflected from the snows of those regions, rendered more conspicuous, or disappearing, as they first emerge from a twelvemonths' winter, or melt in a summer of equal duration."I could have listened forever to this astronomer, whose lectures so profoundly taught lessons of humility to the created, and which were so replete with silent eulogies on the power of the Creator! What was it to me whether I were a modest plant, of half a cubit in stature, or the proudest oak of the forest--man or vegetable? My duty was clearly to glorify the dread Being who had produced all these marvels, and to fulfil my time in worship, praise and contentment. It mattered not whether my impressions were derived through organs called ears, and were communicated by others called those of speech, or whether each function was performed by means of sensations and agencies too subtle to be detected by ordinary means. It was enough for me that I heard and understood, and felt the goodness and glory of God. I may say that my first great lessons in true philosophy were obtained in these lectures, where I learned to distinguish between the finite and infinite, ceasing to envy any, while I inclined to worship one. The benevolence of Providence is extended to all its creatures, each receiving it in a mode adapted to its own powers of improvement. My destiny being toward a communion with man--or rather with woman--I have ever looked upon these silent communications with the astronomer as so much preparatory schooling, in order that my mind might be prepared for its own avenir, and not be blinded by an undue appreciation of the importance of its future associates. I know there are those who will sneer at the supposition of a pocket-handkerchief possessing any mind, or esprit, at all; but let such have patience and read on, when I hope it will be in my power to demonstrate their error.
{avenir = future; esprit = soul or vital spirit }
