up against his ears. The stub of his nose itched horribly,
The nebular hypothesis thus given detailed completion by Laplace is a worthy complement of the grand cosmologic scheme of Herschel. Whether true or false, the two conceptions stand as the final contributions of the eighteenth century to the history of man's ceaseless efforts to solve the mysteries of cosmic origin and cosmic structure. The world listened eagerly and without prejudice to the new doctrines; and that attitude tells of a marvellous intellectual growth of our race. Mark the transition. In the year 1600, Bruno was burned at the stake for teaching that our earth is not the centre of the universe. In 1700, Newton was pronounced "impious and heretical" by a large school of philosophers for declaring that the force which holds the planets in their orbits is universal gravitation. In 1800, Laplace and Herschel are honored for teaching that gravitation built up the system which it still controls; that our universe is but a minor nebula, our sun but a minor star, our earth a mere atom of matter, our race only one of myriad races peopling an infinity of worlds. Doctrines which but the span of two human lives before would have brought their enunciators to the stake were now pronounced not impious, but sublime.
The first day of the nineteenth century was fittingly signalized by the discovery of a new world. On the evening of January 1, 1801, an Italian astronomer, Piazzi, observed an apparent star of about the eighth magnitude (hence, of course, quite invisible to the unaided eye), which later on was seen to have moved, and was thus shown to be vastly nearer the earth than any true star. He at first supposed, as Herschel had done when he first saw Uranus, that the unfamiliar body was a comet; but later observation proved it a tiny planet, occupying a position in space between Mars and Jupiter. It was christened Ceres, after the tutelary goddess of Sicily.
Though unpremeditated, this discovery was not unexpected, for astronomers had long surmised the existence of a planet in the wide gap between Mars and Jupiter. Indeed, they were even preparing to make concerted search for it, despite the protests of philosophers, who argued that the planets could not possibly exceed the magic number seven, when Piazzi forestalled their efforts. But a surprise came with the sequel; for the very next year Dr. Olbers, the wonderful physician- astronomer of Bremen, while following up the course of Ceres, happened on another tiny moving star, similarly located, which soon revealed itself as planetary. Thus two planets were found where only one was expected.
The existence of the supernumerary was a puzzle, but Olbers solved it for the moment by suggesting that Ceres and Pallas, as he called his captive, might be fragments of a quondam planet, shattered by internal explosion or by the impact of a comet. Other similar fragments, he ventured to predict, would be found when searched for. William Herschel sanctioned this theory, and suggested the name asteroids for the tiny planets. The explosion theory was supported by the discovery of another asteroid, by Harding, of Lilienthal, in 1804, and it seemed clinched when Olbers himself found a fourth in 1807. The new-comers were named Juno and Vesta respectively.
There the case rested till 1845, when a Prussian amateur astronomer named Hencke found another asteroid, after long searching, and opened a new epoch of discovery. From then on the finding of asteroids became a commonplace. Latterly, with the aid of photography, the list has been extended to above four hundred, and as yet there seems no dearth in the supply, though doubtless all the larger members have been revealed. Even these are but a few hundreds of miles in diameter, while the smaller ones are too tiny for measurement. The combined bulk of these minor planets is believed to be but a fraction of that of the earth.
Olbers's explosion theory, long accepted by astronomers, has been proven open to fatal objections. The minor planets are now believed to represent a ring of cosmical matter, cast off from the solar nebula like the rings that went to form the major planets, but prevented from becoming aggregated into a single body by the perturbing mass of Jupiter.
As we have seen, the discovery of the first asteroid confirmed a conjecture; the other important planetary discovery of the nineteenth century fulfilled a prediction. Neptune was found through scientific prophecy. No one suspected the existence of a trans-Uranian planet till Uranus itself, by hair-breadth departures from its predicted orbit, gave out the secret. No one saw the disturbing planet till the pencil of the mathematician, with almost occult divination, had pointed out its place in the heavens. The general predication of a trans-Uranian planet was made by Bessel, the great Konigsberg astronomer, in 1840; the analysis that revealed its exact location was undertaken, half a decade later, by two independent workers--John Couch Adams, just graduated senior wrangler at Cambridge, England, and U. J. J. Leverrier, the leading French mathematician of his generation.
Adams's calculation was first begun and first completed. But it had one radical defect--it was the work of a young and untried man. So it found lodgment in a pigeon-hole of the desk of England's Astronomer Royal, and an opportunity was lost which English astronomers have never ceased to mourn. Had the search been made, an actual planet would have been seen shining there, close to the spot where the pencil of the mathematician had placed its hypothetical counterpart. But the search was not made, and while the prophecy of Adams gathered dust in that regrettable pigeon-hole, Leverrier's calculation was coming on, his tentative results meeting full encouragement from Arago and other French savants. At last the laborious calculations proved satisfactory, and, confident of the result, Leverrier sent to the Berlin observatory, requesting that search be made for the disturber of Uranus in a particular spot of the heavens. Dr. Galle received the request September 23, 1846. That very night he turned his telescope to the indicated region, and there, within a single degree of the suggested spot, he saw a seeming star, invisible to the unaided eye, which proved to be the long-sought planet, henceforth to be known as Neptune. To the average mind, which finds something altogether mystifying about abstract mathematics, this was a feat savoring of the miraculous.
- Even as he realized the fact, the quarry vanished, and
- power. It is for you to show us how to kindle a holy war,
- to much, being pretty well a repetition of those Zorn had
- the half-caste chief. He said I owed him money for cattle
- man more common interests than the cultured guests of Bwana
- you get in German South West. “You have heard of me,”
- near to us were very quiet and polite, but the outer fringe
- This was what I wanted, for if we stayed in Lisbon some
- Max realized that he must lower his head if he would follow.
- worth the name to lead them, but it took Botha and Smuts
- and dress like a Baptist parson and go into Germany on
- at him. The large eyes seemed to be gazing steadily at
- and go into permanent camp just beyond the great river
- natives they’re bound to show me what hand they hold.
- that entirely to me. I’ll find out the best way. I suppose
- “Then what in God’s name can you do?” shouted Stumm.
- up the steps, depositing her there with her back to the
- can get what help you like. You can follow any plan you
- her grievances over our seizure of her ironclads, of the
- better educated and remembered whereabouts in the map it
- the sailors bought with a stick of tobacco, of the value
- respect the fighting of the British soldier, but we don’t
- drank to our next merry meeting. Then Sandy began to laugh,
- and sighed. But that's been tried, and it didn't make
- In three strides he found his foot splashing in water.
- Sandy spent a busy fortnight in his subterranean fashion,
- of jottings, the dossier of Mr Blenkiron. He had done wonders
- You don't know? Putsyn laughed and there was relief in
- In the afternoon we paid our respects to the governor —
- “I believe I’ve a good chance. I’m not in this show
- lost its bearings and broken out into all manner of badges
- couldn't tell him. She was no longer a reliable source
- resources were at an end; it must be another's work to
- I know all about Damaraland, but instead of being put on
- villa. What’s your next puzzle, Dick? Have you entered
- of the battalion, and looking forward to being in at the
- the ray of light from Max's lamp impinged upon the opening
- carried me back eighteen months to the hot summer before
- things, but I never started on them without wishing they
- I passed him the paper. “Who wrote it? It looks as if
- In three strides he found his foot splashing in water.
- a gun he could get to in a hurry. Maybe Putsyn had planned
- was, feeding solemnly, with a napkin tucked under his chin.
- pickelhaubes. I fancy you can’t manufacture Holy Wars
- which marks the natural boundary of the country that the
- but I kept awake till midnight, trying to focus thoughts
- except give off Notes like a leaky boiler gives off steam.
- the whole big concern seemed to have no soul in it, to
- December 1st. — We steered for the island of Lemuy. I
- of our doings, and by his constant harping on it I pretty