6. Throttle valve with governor and gear for operating the same,

parallel motion for opening and closing the valves, and indicator. These inventions not only made it possible to replace hand-labor often with machines, but made it possible to construct machines much more rapidly and to make them in every way more convenient. Improvement in the arts of spinning and weaving caused the textile establishments and population of north England to go forward by leaps and bounds. Previous to the invention of the “fly shuttle” in 1733 by John Kay of Bury, the weaver had to throw the shuttle through the warp by hand. Weaving became much more rapid; also by having several shuttles with different-colored yarn stripes and checks could be woven into the cloth. Since weaving had been made quicker and easier there came a demand for more yarn. Three separate inventions satisfied this, viz., James Hargreaves of Blackburn invented his “jenny” about 1767, by which eight threads could be spun at once. At the same time Richard Arkwright, a barber of Preston, invented and developed the throstle spinning frame (1769-1775). Samuel Crompton, about 1775, invented his spinning “mule,” which seemed to combine the good principles of the others. Power was applied to spinning about 1785 and then it was weaving that needed accelerating. To Cartwright in 1784 is ascribed the honor of inventing the power loom. Other inventions for both spinning and weaving have made almost automatic the running of thousands of spindles and hundreds of looms in a single factory. =Railways Developed.=--With power manufacturing and increased production due to the adoption of improved factory systems came still greater demand for transportation. Tramways had already been laid in 1676 for transporting coal from the mines to the sea. The rails were first made of scantling laid in the wheel ruts, then of straight rails of oak on which “one horse would draw from four or five chaldrons of coal.” Later (1765) cast-iron trammels 5 feet long by 4 inches wide were nailed to the wooden rails. These trammels collected dust, therefore in 1789 Jessop laid down at Loughborough cast-iron edge-rails and put a flanged wheel on the waggon. The rails were also placed on chairs and sleepers (ties), the first instance of this method. The distance apart of the rails was 4 feet 8¹⁄₂ inches, what is now known as “standard gauge.” The success of these coal roads suggested tramways for freight and for passenger transportation between the larger towns. The canals had become congested with much traffic; it is said that notwithstanding there were three between Liverpool and Manchester the merchandise passing “did not average more than 1200 tons daily.” The average rate of carriage was 18s. ($4.37) per ton, and the average time of transit on the 50 miles of canal was thirty-six hours. The conveyance of passengers by the improved coach roads, was, for then, quite rapid but rather expensive. Some experimental locomotives had been made and used in the mining regions. Their success led to the building of others. The Stockton and Darlington Railway opened in September, 1825, by a train of thirty-four vehicles, making a gross load of 90 tons, drawn by one engine driven by George Stephenson, with a signal man on horseback in advance. The train made at times as high as 15 miles per hour. The rail used weighed 28 pounds per yard. This road was intended entirely for freight but the demand of the people to ride was so pressing that a passenger coach to carry six inside and fifteen to twenty outside was put on to make the round trip in two hours at a fare of one shilling. When the bill passed for the Liverpool and Manchester Railway in 1826 Stephenson was appointed engineer in charge at a salary of $5000 per year. This road made a great impression on the national mind, no little enhanced by the competition of locomotives at its completion in 1829, resulting in the victory of Stephenson’s engine the “Rocket.” It made the then astonishing speed of 35 miles per hour and proved conclusively the practicability of railway locomotion. To follow the progress of industry during the nineteenth and twentieth centuries would require volumes. More has probably been accomplished, not without evils at times, than in the whole preceding history of the world. And as no small part of these accomplishments are the means and amount of travel and traffic and associated developments and organization made necessary by the vast industries which now supply the world’s wants, once more it may be asserted that the civilization of the world can be measured by its transportation. =Some Historic Roads and Their Influence.=--In the brief survey of the stages through which ordinarily a civilization passes note has frequently been made that as the world progresses so does the necessary transportation increase and improve in character. It is not contended that civilization follows the improvement of transportation, although that is no doubt sometimes the case, but that the state of transportation follows up and down with the state of civilization. Very likely the same could be truthfully said of other elements of civilization such as literature, art, religion, and government. Or even if there be applied Guizot’s three tests of a civilized people: “First, they review their pledges and honor; second, they reverence and pursue the beautiful in painting, architecture, and literature; third, they exhibit sympathy in reform toward the poor, the weak and the unfortunate,” it will be found that those nations most progressed in traffic and travel will rank highest in these tests. =Early Highways.=--To return to some of the important earlier highways. All evidence seems to indicate that civilization had its origin in western Asia. Early history speaks of the civilization and culture of Arabia and Egypt, of Assyria and Persia. Coeval with these civilizations were trade and commerce. Great caravans of camels traversed the sandy highway with their accompanying merchants carrying many products of many lands--frankincense and myrrh from Arabia; cloths and carpets from Babylon and Sardis; shawls from Cashmere; leather from Cordavan and Morocco; tin, copper, gold, and silver utensils from Phœnicia; pearls from the Far East; and grain and other agricultural products nourished and grown by the beneficence of the great mother Nile. The extensive civilizations of these countries are handed down stingily by cuneiform inscriptions on clay tablets scattered here and there among the ruins of their ancient towns and villages, or inscribed upon granite mountain sides as historical memoranda for future generations. Even Holy Writ says little about roads and highways, but that they were known is evident from the few references made. Those things which are commonplace often receive least attention by writers. In Isaiah, 35:8, may be read: “And a highway shall be there, and a way, and it shall be called the way of holyness ... the wayfaring men, though fools, shall not err therein.” And again, Isa. 40:3-4, “The voice of him that cryeth in the wilderness, prepare ye the way of the Lord, make straight in the desert a highway for our God. Every valley shall be exalted, and every mountain and hill shall be made low: and the crooked shall be made straight and the rough places plain.” These would certainly indicate that in Isaiah’s time there were both travelers and roads marked and graded. Isaiah in other places shows that he, if not himself a road builder, is familiar with that process: Isa. 57:14, “And shall say, cast ye up, cast ye up, prepare the way take up the stumbling block out of the way of my people.” Isa. 62:10, “Prepare ye the way of the people; cast up, cast up the highway; gather out the stones; lift up a standard for the people.” Also Jeremiah likens the path of the wicked to an ungraded road. Jeremiah 18:15, “Because my people have forgotten me, they have burned incense to vanity, they have caused them to stumble in their ways from the ancient paths, to walk in paths, in a way not cast up.” The trade along the eastern coast of the Mediterranean and across Palestine and the great Arabian deserts to Persia, to Babylonia, and possibly to India was evidently of importance to the fluctuating destinies of Egypt and Assyria, and later of Greece, Rome, and Turkey; so much so, that many wars were waged for the control of the great highway over which it passed. Palestine became a territory of importance. It is said Jerusalem has suffered some three score sieges, most of them because she dominated this highway, being at or near the confluence of its forks reaching east into the deserts, north toward the straits over which a crossing could be made into Europe, and southward to Egypt. Egypt and Assyria fought for its control; Greece and Rome in turn came into possession of it; Turkey and the Mohammedans for centuries monopolized it; and the recent great World War was no doubt accentuated by the cupidity of Germany to control a long line of transportation through Austria-Hungary, Bulgaria, Turkey, Mesopotamia to Persia, Baluchistan and India.[9] Alexander the Great overran the East, besieged Tyre, and converted an island into an isthmus in order to secure and hold control of the highway and the rich bounty imagined to be at its farther end. “Babylon is a ruin, a stately and solitary group of palms marks where Memphis stood, jackals slake their thirst in the waters of the sacred lake by the hall of a thousand columns at Thebes, but the road that formed the nexus between these vanished civilizations remains after the winds of four millenniums have sighed themselves to silence over the graves of its forgotten architects and engineers.”[10] But the Greater Greece, built up by the personality and sword of Alexander the Great, fell, largely, because of the lack of roads. The very name of Alexander was sufficient to subdue city after city, but as soon as his personal influence was at an end the cities fell apart. Here was a wonderful opportunity. With magnificent natural-made waterways, with innumerable safe harbors what a chance for commerce, for trade with the entire world. The islands of the Aegean Sea were stepping stones to Asia Minor; Macedonia furnished an open route for the Bosphorus and Dardanelles; Thrace led to those fertile lands surrounding the Black Sea and extending away to the Caspian and joining once more with empire already conquered. On the west there was close at hand the islands of, and land bordering, the Adriatic, the great Italian boot, and Sicily where new civilizations were ready to rise and take on Greek culture for the mere offering. It would seem as though Greece ought to have become the fostering mother of world colonization, but the different parts of Greece proper, where the real mental ability lay, were separated by lack of roads from each other. Athens was potentially nearer to the Black Sea than to Sparta; Corinth was nearer Sicily than to Macedonia. The many Grecian tribes were distinct, having different laws, customs and manners. Intercourse, which could have been brought about had there been interconnecting roads, was necessary to weld the people into a homogeneous mass. Sparta and Athens, less than an hour apart by modern air-plane, because of the mountains, roadless and almost pathless between them, barriers which they failed to surmount, developed different forms of civilization, different thought, habits, and tastes. To Athens the world owes an everlasting debt for masterpieces in poetry, oratory, architecture, and sculpture. “There was no Spartan sculpture, no Laconian painter, no Lacedaemonian poet.” The lack of intercommunication caused differences in language, in customs, in ideals, and in manners, making of Greece a heterogeneous conglomeration of tribes where internecine strife was ever present, and no strong centralized government could exist. Lucky for the best of the Greek civilization that it would be carried to the ends of the world by the roads of a young giant which was arising in the west. =Roman Roads.=--The roads in Rome bore such a prominent part in the civilization that they could not be entirely overlooked by contemporaneous writers. The roads are often described as military roads because they were primarily planned to transport soldiers quickly and easily to any desirable part of the empire. But no doubt the greatness of Rome was due more to the traffic in goods and people brought to and taken away from her precincts by these roads than to military prowess. Her roads were the arteries and veins through which the life blood of the nation pulsated; were the sensory and motive nerves which fetched and carried intelligence, which prompted action. She received and she disseminated. She was the hub of the universe, her roads the spokes radiating to and holding together the limits of her vast domain. [Illustration: © _Underwood and Underwood_ THE APPIAN WAY Showing the original Paving Stones laid 300 B.C.] How many roads Rome built it is difficult to state, for they were found in all parts of the empire. Some, as those in Italy, were very carefully and substantially built; others less so, grading down to mere trails in the hintermost districts. The Via Egnatia, which was one of the important provincial roads, is said by Strabo to have been regularly laid out and marked by milestones from Dyrrhacium, (Durazzo) on the coast of the Adriatic across from the heel of Italy’s boot through Thessalonica (Saloniki) and Philippi to Cypselus on the Hebnis and later to the Hellespont, for Cicero speaks of “that military way of ours which connects us with the Hellespont.” This road became historic as the scene of the conflict between the friends and enemies of the decaying Roman republic. Brutus and Cassius on the one hand here in 42 B.C., met the forces of Antony and Octavius. There tradition states the ghost of the dead Caesar met Brutus, and as a matter of fact, the “liberators” were cut to pieces in two engagements. Brutus and Cassius, believing the cause of the republic lost, both committed suicide, and the Roman world was soon thereafter in the hands of two masters--Antony in the East and Octavius in the West. Three centuries later this road became the leading highway to Byzantium (Constantinople), the great city founded by Constantine, impregnable in its rocky seclusion, dominating the waterway to the Black Sea and the rich agricultural land beyond. Some twenty of these roads, more if their branches be counted, concentrated at the Eternal City and passed through her several gates. Rome could sit on her seven hills and by means of these roads rule the world. Among the most important of these were the Via Appia, Via Flaminia and Via Aemilia, Via Aurelia, Via Ostiensis, and Via Latina. One peculiarity of these Roman roads was their straightness, passing almost in a direct line between determining points. Another, to which is due their durability, was their massiveness. Their general construction may be described as follows: The line of direction having been laid out trenches were made along each side defining the width, which was from 13 to 17 feet. The loose earth between was excavated to secure a firm foundation and the road was then filled or graded up to the required height with good material, sometimes as high as 20 feet. The pavement usually consisted of a layer of small stones; then a layer of broken stones cemented with lime mortar; then a layer of broken fragments of brick and pottery incorporated with clay and lime; and finally a mixture of gravel and lime or a floor of hard flat stones cut into rectangular slabs or irregular polygons fitted nicely together. The whole was frequently 4 feet thick. Along the road milestones were erected, some of them quite elaborate with carved names and dates. Near the arch of Septimus Severus in the Roman Forum still remains a portion of the “Golden Milestone,” a gilded pillar erected by Augustus, on which were carved the names of roads and lengths similar to a modern guide post. Some of these roads were used hundreds of years until they fell into neglect after Rome had been invaded by the northern barbarians. From a statement of Procopinus, the Appian Way, construction begun 312 B.C., was in good condition 800 years later, and he describes it as broad enough for two carriages to pass each other. It was made of stones brought from some distant quarry and so fitted to each other (over some 2 feet of gravel) that they seemed to be thus formed by nature, rather than cemented by art. He adds that notwithstanding the traffic of so many ages the stones were not displaced, nor had they lost their original smoothness. The papal government excavated, repaired, and reopened that road as far as Albano and it is still being used as a highway. [Illustration: MAP OF ITALY Showing some of the twenty or more roads that radiated from Rome] The Flaminian Way extended from Rome to Ariminum and thence was carried under the name Via Aemilia through Parma, and Placentia across to Spain. While not so much traffic passed over it, because the West was sparsely settled, as over the Appian Way, it nevertheless was a worthy rival. The Aurelian Way followed up the coast through Etruria and furnished another highway to Spain and Gaul. The Ostien highway connected Rome with a splendid harbor at the mouth of the Tiber. But the Appian Way was rightly the most famous of all; it was the earliest made, it was perhaps the longest paved road, and it carried the greatest amount of traffic. The road was built by Appius Claudius Caecus--then a Roman Censor, afterwards a Consul, from whom it takes its name--to Capua, a distance of 142 miles. Later it was extended across the Apennine Mountains through Beneventum, Venusia, and Tarentum, to Brundisium, a port on the Adriatic Sea, in the heel of the boot, a total distance of 350 miles. The improvements of Appius were begun in the year 312 B.C., and carried out at least as far as Capua. Livy speaks of a road over part of this way some thirty-five years earlier. A portion outside the walls was paved with lava (silex) in 189 B.C., and during the reign of Trajan (A.D. 98-117) the Via Appia was paved from Capua to Brundisium (Niebuhr). From Brundisium (Brindis) traffic could be carried by ship to Dyrrhacium and thence over the Via Egnatio to Macedonia and the Bosphorus; or along the coast to the Grecian towns, to the cities of the Far East and to Egypt. Many are the references to the noted highway in literature; Milton, in “Paradise Regained,” book four, bids us to watch flocking to the city, enriched with spoils, proconsuls, embassies, legions, in “various habits on the Appian road.” “What a cosmopolitan throng must have graced that highway in the first century,” says Dr. Carroll.[11] “Thick-lipped Ethiopians with rings in noses and ears, swarthy-browed turbaned Mesopotamians, haughty Parthians, burnoosed Arabs still worshiping their polygods, hook-nosed Hebrews, carven with the humility of the despised rich, Greek Pedagogues and Rhetors and Tutors, togaed senators, white-clad vestals with modest faces, and painted harlots with amber hair. Lictors clearing the way with rods for some purple clad dignitary of Nero’s court and carrying the fasces and the ax; street merchants and hawkers of small wares, slaves scantily clad, stark bemuscled gladiators, _Cives_ and _Peregrini_, citizens and strangers, displaying, in varying degree, arrogance and curiosity; long yellow-haired Germans, their faces smeared with ocher and their yellow hair with oil; kilted soldiers with long spears and short broad swords; beggars (the lazzaroni of that bygone age), pathetically sullen or volubly mendicant in the sunshine lecticae; couches carried by bearers containing pampered nobles or high-born ladies; the cisium and the _rhoda meritoria_; the carriage and the hack of that time crossing each other’s path in the narrow road; children naked and joyous; merchants on caparisoned asses; the swinging columns of the legionaries; brown, straight-featured Egyptians. For part of the distance a canal runs parallel and travelers have their choice to take the pavement or to ride in state on painted barges dragged by mules; on the pavement a Pontifex in his robes of office and Augurs exchanging cynical smiles; the rattle of chariot wheels and some haggard-eyed noble, redolent from the warm and scented bath, with flower-crowned brow, drives in furious guise along the Appian Way, while barbarian and Scythian, bond and free, yield the way before him.” [Illustration: MAP OF ROMAN ROADS IN ENGLAND (After Jackman: “Development of Transportation in Modern England.”)] Davis[12] tells us that the Roman road system after it had become a network over Italy began to spread over the whole Empire. That admirable highways were built by peaceful legionaries for commercial purposes--and that even to-day in North Africa and in the wilds of Asia Minor where travelers seldom penetrate may be found the Roman road with its hard stones laid on a solid foundation. He further states that as a consequence of these roads commerce expanded by leaps and bounds. A great trade passing down the Red Sea sprang up with India, reaching to the coast of Ceylon, returning with pearls, rare tapestries, and spices. Another set penetrated Arabia for much-desired incense, or unto the heart of Africa for ivory. Also with such merchandising there came a money system with banks, checks and bonds rivaling those of the present day. The bridges are an important part of any road. Those across the Tiber in Rome were regarded as sacred. They were cared for by a special body of Priests called _pontifaces_ (bridge-makers). The name Pontifex Maximus was borne by the High Priest and became a designation for the emperor; it is now applied to the Pope as the highest authority in the papal or pontifical state. =Pre-historic American Roads.=--When America was discovered it was sparsely settled with tribes of semi-civilized peoples. The ordinary aborigine was in the hunting and fishing stage, just beginning to cultivate crops. True, tribes claimed regions and attempted by force to keep other tribes from trespassing thereon. They had no literature save perhaps a few rough diagrams or drawings. There was no trade or commerce and consequently no roads except mere trails. Their methods of transportation consisted in walking or in paddling canoes. In the making and operating of canoes and of weapons of warfare and of the chase they were most advanced. In many parts of the country there had been a civilization, but so long ago no very authentic knowledge of its character can be predicated upon the mounds, utensils, and other evidence now remaining. The Mound Builders and the Cliff Dwellers are as yet to us unknown peoples. In Mexico, Central America,[13] and Peru a much higher civilization prevailed. Especially in Peru where a very high state of agriculture was in vogue. There is even evidence of a considerable degree of Art and Literature.[14] Many of the remains remind one of early Egyptian and Persian temples and roads, but perhaps no more lucid description of the ancient Peruvian roads and transportation exists than that given in Prescott’s justly celebrated classic, “The Conquest of Peru.” Slightly abridged it reads thus: Those who may distrust the accounts of Peruvian industry will find their doubts removed on a visit to the country. The traveler still meets, especially in the central regions of the tableland, with memorials of the past, remains of temples, palaces, fortresses, terraced mountains, great military roads, aqueducts, and other public works, which, whatever degree of science they may display in their execution, astonish him by their number, the massive character of the materials, and the grandeur of the design. Among them, perhaps the most remarkable are the great roads, the broken remains of which are still in sufficient preservation to attest their former magnificence. There were many of these roads, traversing different parts of the kingdom: but the most considerable were the two which extended from Quito to Cuzco, and, again diverging from the capital, continued in a southerly direction toward Chili. One of these roads passed over the great plateau, and the other along the lowlands on the borders of the ocean. The former was much the more difficult achievement, from the character of the country. It was conducted over pathless sierras buried in snow; galleries were cut for leagues through the living rock; rivers were crossed by means of bridges that swung suspended in the air; precipices were scaled by stairways hewn out of the native bed; ravines of hideous depths were filled up with solid masonry; in short, all the difficulties that beset a wild and mountainous region, and which might appall the most courageous engineer of modern times, were encountered and successfully overcome. The length of the road, of which scattered fragments only remain, is variously estimated at from fifteen hundred to two thousand miles; and stone pillars, in the manner of European milestones, were erected at stated intervals of somewhat more than a league, all along the route. Its breadth scarcely exceeded twenty feet. It was built of heavy flags of freestone, and, in some parts at least, covered with a bituminous cement, which time has made harder than the stone itself. In some places where the ravines had been filled up with masonry, the mountain torrents, wearing on it for ages, have gradually eaten away through the base, and left the superincumbent mass--such is the cohesion of the materials--still spanning the valley like an arch. Over some of the boldest streams it was necessary to construct suspension bridges, as they are termed, made of the tough fibers of the maguey, or of the osier of the country, which has an extraordinary degree of tenacity and strength. These osiers were woven into cables of the thickness of a man’s body. The huge ropes, then stretched across the water, were conducted through rings or holes cut in immense buttresses of stone raised on the opposite banks of the river and then secured to heavy pieces of timber. Several of these enormous cables bound together formed a bridge which, covered with planks, well secured and defended by a railing of the same osier materials on the sides, afforded a safe passage for the traveler. The length of this aerial bridge, sometimes exceeding two hundred feet, caused it, confined as it was only at the extremities, to dip with an alarming inclination towards the center, while the motion given to it by the passenger occasioned an oscillation still more frightful, as his eye wandered over the dark abyss of waters that foamed and tumbled many fathoms beneath. Yet these light and fragile fabrics were crossed without fear by the Peruvians, and are still retained by the Spaniards over those streams which, from the depth or impetuosity of the current, would seem impracticable for the usual modes of conveyance. The wider and more tranquil waters were crossed on balsas--a kind of raft still much used by the natives--to which sails were attached, furnishing the only instance of this higher kind of navigation among the American Indians. The other great road of the Incas lay through the level country between the Andes and the ocean. It was constructed in a different manner, as demanded by the nature of the ground, which was for the most part low, and much of it sandy. The causeway was raised on a high embankment of earth, and defended on either side by a parapet or wall of clay; and trees and odoriferous shrubs were planted along the margin, regaling the senses of the traveler with their perfumes, and refreshing him by their shades, so grateful under the burning sky of the tropics. In the strips of sandy waste which occasionally intervened, where the light and volatile soil was incapable of sustaining a road, huge piles, many of them to be seen at this day, were driven into the ground to indicate the route to the traveler. All along these highways, caravansaries, or tambos, as they were called, were erected, at the distance of ten or twelve miles from each other, for the accommodation, more particularly of the Inca and his suite and those who journeyed on the public business. There were few other travelers in Peru. Some of these buildings were on an extensive scale, consisting of a fortress, barracks, and other military works, surrounded by a parapet of stone and covering a large tract of ground. These were evidently destined for the accommodation of the imperial armies when on their march across the country. The care of the great roads was committed to the districts through which they passed, and under the Incas a large number of hands was constantly employed to keep them in repair. This was the more easily done in the country where the mode of traveling was altogether on foot; though the roads are said to be so nicely constructed that a carriage might have rolled over them as securely as on any of the great roads of Europe. Still in a region where the elements of fire and water are both actively at work in the business of destruction, they must, without constant supervision, have gradually gone to decay. Such has been their fate under the Spanish conquerors, who took no care to enforce the admirable system for their preservation adopted by the Incas. Yet the broken portions that still survive here and there, like the fragments of the great Roman roads scattered over Europe, bear evidence to their primitive grandeur, and have drawn forth the eulogium from a discriminating traveler, usually not too profuse in his panegyric, that “the roads of the Incas were among the most useful and stupendous works ever executed by man.” The system of communication through their dominions was still further improved by the Peruvian sovereigns by the introduction of posts, in the same manner as was done by the Aztecs. The Peruvian posts, however, established on all the great routes that conducted to the capital, were on a much more extended plan than those in Mexico. All along these routes, small buildings were erected, at the distance of less than five miles asunder, in each of which a number of runners, or chasquis, as they were called, were stationed to carry forward the dispatches of government. These dispatches were either verbal, or conveyed by means of quipus, and sometimes accompanied by a thread of the crimson fringe worn round the temples of the Inca, which was regarded with the same implicit deference as the signet-ring of an Oriental despot. The chasquis were dressed in a peculiar livery, intimating their profession. They were all trained to the employment and selected for their speed and fidelity. As the distance each courier had to perform was small, and as he had ample time to refresh himself at the stations, they ran over the ground with great swiftness, and messages were carried through the whole extent of the long routes, at the rate of one hundred and fifty miles a day. The office of the chasquis was not limited to carrying dispatches. They frequently brought various articles for the use of the court and in this way fish from the distant ocean, fruits, game, and different commodities from the hot regions on the coast, were taken to the capital in good condition, and served fresh at the royal table. It is remarkable that this important institution should have been known to both the Mexicans and the Peruvians without any correspondence with one another and that it should have been found among two barbarian nations of the New World long before it was introduced among the civilized nations of Europe. By these wise contrivances of the Incas, the most distant parts of the long extended empire of Peru were brought into intimate relations with each other. The while the capitals of Christendom, but a few hundred miles apart, remained as far asunder as if seas had rolled between them, the great capitals Cuzco and Quito were placed by the high roads of the Incas in immediate correspondence. Intelligence from the numerous provinces was transmitted on the wings of the wind to the Peruvian metropolis, the great focus to which all the lines of communication converged. Not an insurrectionary movement could occur, not an invasion on the remotest frontier, before the tidings were conveyed to the capital and the imperial armies were on their march across the magnificent roads of the country to suppress it. So admirable was the machinery contrived by the American despots for maintaining tranquillity throughout their dominions! It may remind us of the similar institutions of ancient Rome, when, under the Caesars, she was mistress of half the world. Hiram Bingham, Director of the Geographic Society-Yale Peruvian Expedition[15] gives an interesting description of the tracing out of two of these old roads. Evidently the trail was mostly used by foot passengers, or possibly llamas, for there were frequently steep grades and flights of steps and open ravines which had more than likely been crossed by the osier suspension bridges. No doubt much commerce beside fertilizer from the great nitrate beds was carried on over these roads. =Conclusion.=--If the story, very briefly given, of these old roads does not verify the thesis that transportation is a measure of civilization, a view might be taken of the tribes and peoples now living in the various parts of the earth. If the character of the transportation of the tribes of Africa and of Asia, of the Arctic and Antarctic regions, the least civilized now known, be compared with that of those nations considered most civilized, the same general conclusion would be drawn. Compare the railways, canals, highways, cars, automobiles, ships, and aircraft of the present-day United States with the pack animals and ox-carts of many less favored nations and the further evidence of amount of traffic and travel per person, will be unnecessary to establish the relative states of civilization. It is not necessary even to go beyond the confines of the great American Republic. Writers who traveled through it in the ’forties, ’fifties and ’sixties are wont to call attention to the uncouthness of the inhabitants, to the lack of the refinements of speech and manners characterizing those who dwelt in the more populous communities. But the honesty, integrity, generosity, willingness, and ability of the American pioneers to dare and to do, were unquestioned. It is a pity that many of the best traits of humanity disappear when people are crowded into cities, when their wants and desires are increased, when the refinements of civilization have replaced the ruggedness of pioneer life. Then, as now, upon the action of a bare majority, which in a republic is called “the will of the people,” often hung the political, social and financial destiny of the nation. A slight change would have changed the course of civilizing evolution; who knows whether for good or ill. As the _trivium_ and _quadrivium_ were the roads, believed by the ancients to lead to a liberal education, so the government and the civilization of this now great nation has rested consecutively in its upward progress, upon the slender path of the aborigine, swelled to the well defined trail of the pack-train, broadened into the cart and wagon road, cast up into a turnpike; and upon the rippling trace of the light canoe, the dugout, the keel-boat, the pole-boat, the flat-boat, the canal-boat and the steam-boat; all to be supplanted by the thunder of the locomotive. What in the process of evolution will follow it? The automobile, the truck, the flying machine? Time alone can tell. SELECTED REFERENCES DAVIS, WILLIAM STEARNS, “The Influence of Wealth on Imperial Rome,” pp. 85-105. The Macmillan Company, New York. ELY, RICHARD T., “Outlines of Economics,” The Macmillan Co., New York. Chapter III. Encyclopaedia Britannica. Articles on the “Steam Engine,” “Yarn,” “Weaving,” and “Railway.” GREEN, JOHN RICHARD, “History of the English People,” Book IX,