The Arizona sentinel., 1888-07-28
many years, and even cent
 uries, when succeeding as-

But every star in the Armament is nov.
 ing through space with wonderful
 velocity. Absolute rest is unknown ir
 the universe. If We look up to the sky
 on calm, bright night, when the stars
 shine in all their glory, we are usually
 impressed with the feeling that solemn
 stiffness reigns throughout those in-
 finite regions of space.
 In reality, those amazing star depths
 above us, which appear so steadfast
 and unchangeable from year to year,
 are astir with life, energy and activity,
 and there is a remarkable process of
 change taking place all around us. Our own earth is moving with us con- stantly and rapidly in it's orbit, eighteen miles per second, or with nearly every beat of the pulse! This is our velocity as reported by the astronomers, and
 while we sleep seven hours at night
 the world carries us 470,000 miles through space.
 Some stars are known to be approach
 ing and others receding from the earth. Among those found to be approaching is Arcturus- in the Bible, and the brightest north star of the Equator which is moving with a velocity of fifty-five miles every second. Sirius, the "Dog-Starn and ''King of Suns," so glorious on winter evenings, and the brightest star in all the heav- ems, is receding from us at the rate of twenty-six miles a second; and yet, even with these enormous velOcities, l the passage of a thousand years will make no perceptible difference in the appearance of these two stars, so inn mense are the distances which sepa- rate them from the earth.
 The greatest velocity that has been recognized among the stars is found in the motion of a star known as 1880 Groombridge, or the runaway star" 7" as it is sometimes called, which is be- lieved to be rushing through space at the rate of 200 miles per second. This star appears to be moving in per- fectly straight line through the sky, and it may be visiting our solar sys- tenn for the first time, but whence it came, or whither it is going, no one can tell, and it is a great enigma to as- trOnomers. Its wonderful velocity can not be explained, as it is far greater than could be produced by the infu- ence of all known Orbs in the universe, and, on the other hand, the combined of f1san of oil hn n4 -fa, this wanderer in its solitary flight through space, until it has rushed on to the extreme limits, beyond which the largest telescopes have never pene- trated.
 It has been mathematically demon strated that body approaching the center of our system, from an infinite distance, can not move with a greater velocity than twenty-five miles sec ond if influenced by the attraction of the masses in our universe alone; but here we have been considering star moving with eight times that velocity, and still, notwithstanding the fact that it be the greatest motion known among the stars, it would require 1850 years for this remarkable star to con- plete an entire circuit around the heavens.
 One of the most notable examples of the constant and yet almost impercep- tible changes taking place in the firma- ment is to be found in the motions of the seven bright stars forming the we'll known Big Dipper," " in the constella- tion Uras Major. Prof Huggins has learned that five of these stars are moving in the same direction through the heavens, which seems to indicate that they are associated with each other in some mysterious way at present unknown to astronomers. After long-continued and careful study of the motions of all the stars in the Big Dipper," Prof Flammarion, a distin- guished French astronomer, has been able to represent the outlines formed by them in the past and those which they will form in the distant future One hundred thousand years ago, ac- cording to his ingenious calculations, the stars now forming the Big Dip per" were then arranged in the outline of large and irregular-shaped cross; and 100000 years hence they will assume the outline of an elongated and inverted "Dipper"- different from the one we now see-which will stretch over large extent of the sky.
 Our entire universe of stars is con- stantly undergoing vast changes. The configuration of our starry heavens will eventually be greatly changed from their present appearance. Orion, now so beautiful and attractive during the winter season, will then no longer hold over the cancellations.
 The notions hitherto held concern ing the stars and the Armament are destined to undergo a complete revolu- tion. There is no fixed stars" in the heavens. Each one of those distant suns, shining in the immensity of space, is swept along in a movement so rapid that the human mind can hardly con- ceive it; and before many years have elapsed there will be recognized among the stars variety of constitution and a complexity of arrangement striking ly entrusted with the gene ral uni formity of structure at present taught in most of our text books on astron- omy. -Artbur K. BartLett, tn Detroit Free Press.
 A novelty in railway reading is said to have been introduced in En-