When observed from a position directly facing the dark spots the sun would seem very different from the same body viewed from a place facing the solar heights whose streams of fire were moving toward one at the rate of from 500 to 1,000 miles per second. Or let us form a sphere with the next nearest sun, Alpha Centauri, as its centre, and a radius of ten trillions of miles. In such a sphere we might place 1,210 quadrillions of earths. Who believes, that were that number of bodies of earth’s size placed about the star Alpha Centauri, to each of them it would appear alike, especially if it were like our sun with dark spots and prominences upon its surface? It would seem that the light received from it might be so variable that different ages would be attributed to the sun, according to the position from which it was observed. Our own sun when seen from different points of the earth’s surface—as, for instance, from the arctic region or torrid zone—does not look to us exactly the same. A very little change in the atmosphere affects the appearance of the sun as we daily view it, and the pictures of the corona taken at different places—or even at the same place with different instruments—are found on careful examination to present quite different appearances. Once again, assume the sun’s diameter to be one million of miles with a surface of three trillions of square miles which if two miles in depth would have twice that number of cubic miles, _i. e._, six trillions of cubic miles. Imagine then a sphere with a radius of three billions of miles from the sun’s centre, that is one reaching beyond the planet Neptune, and we have a sphere containing 108 octillions of cubic miles in volume, which divided by six trillions gives us 18,000 trillions of centuries, providing the mass has contracted six trillions of cubic miles each century. It might be said that when the sun had 6,000 millions of miles for its diameter it would have contracted more than six trillions of miles a century; but we must remember that it is a law of spherical, gaseous volumes that they revolve swifter and swifter, and grow hotter and hotter as they contract. Hence, the sun to-day being smaller is revolving more rapidly and contracting faster than ever before; though it is not detected by us. As its diameter and volume must have been larger when it contracted more slowly its decrease could not have been more rapid, if as rapid as now, and at the rate of no more than six trillions of miles each century. If this be true we cannot have over estimated the number of centuries that the sun has been contracting. Then from these suppositions if the sun’s energy has not waned in all these 18,000 trillions of centuries, it seems probable that the Power that has caused it to glow thus long may continue to give to it an energy that shall flow on with unabated strength throughout the coming ages.