RAILROADS TO THE CLOUDS.

If George Stephenson, when he placed the first locomotive on the track

and guaranteed it a speed of six miles an hour, could have foreseen that

in less than eighty years the successors of his rude machine would be

climbing the sides of mountain ranges, piercing gorges hitherto deemed

inaccessible, crossing ravines on bridges higher than the dome of St.

Paul's, and traversing the bowels of the earth by means of tunnels, no

doubt his big blue eyes would have stood out with wonder and amazement.

But he foresaw nothing of the kind; the only problem present in his mind

was how to get goods from the seaports in western England to London as

easily and cheaply as possible, and to do this he substituted for

horses, which had for 150 years been drawing cars along wooden or iron

tracks, the wonderful machine which has revolutionized the freight and

passenger traffic of the world.

It was, indeed, impossible for any one to foresee the triumphs of

engineering which have accompanied the advances in transportation. To

the engineer of the present day there are no impossibilities. The

engineer is a wizard at whose command space and matter are annihilated.

The highest mountain, the deepest valley, has no terrors for him. He can

bridge the latter and encircle or tunnel the former. The only requisites

which he demands are that something in his line be needed, and that the

money is forthcoming to defray the expense, and the thing will be done.

But the railroad he is asked to construct must be necessary, and the

necessity must be plainly shown, or no funds will be advanced; and

although the theory does not invariably hold good, especially when a

craze for railroad building is raging, as a rule no expense for the

construction of a road will be incurred without a prospect of

remuneration.

Hence the need of railroad communication has caused lines to be

constructed through districts where only a few years ago the thing would

have been deemed impossible. The Pacific roads of this country were a

necessity long before their construction, and in the face of

difficulties almost insuperable were carried to successful completion.

So, also, of the railroads in the Andes of South America. The famous

road from Callao through the heart of Peru is one of the highest

mountain roads in the world, as well as of the most difficult

construction. The grades are often of 300 feet and more to the mile, and

when the mountains were reached so great were the difficulties the

engineers were forced to confront that in some places laborers were

lowered from cliffs by ropes in order that, with toil and difficulty,

they might carve a foothold in order to begin the cutting for the

roadway.

In some sections tunnels are more numerous than open cuts, and so far as

the road has gone sixty-one tunnels, great and small, have been

constructed, aggregating over 20,000 feet in length. The road attains a

height of 15,000 feet above the level of the sea, and at the highest

point of the track is about as high as the topmost peak of Mont Blanc.

It pierces the range above it by a tunnel 3,847 feet long. The stern

necessities of business compelled the construction of this road,

otherwise it never would have been begun.

The tunnels of the Andes, however, do not bear comparison with the

tunnels, bridges, and snow sheds of the Union Pacific, nor do even these

compare with the vast undertakings in the Alps--three great tunnels of

nine to eleven miles in length, which have been prepared for the

transit of travelers and freight. The requirements of business

necessitated the piercing of the Alps, and as soon as the necessity was

shown, funds in abundance were forthcoming for the enterprise.

But tunneling a mountain is a different thing from climbing it. Many

years ago the attention of inventors was directed to the practicability

of constructing a railroad up the side of a mountain on grades which, to

an ordinary engine, were quite impossible. The improvements in

locomotives twenty-five and thirty years ago rendered them capable of

climbing grades which, in the early days of railroad engineering, were

deemed out of the question. The improvements proved a serious stumbling

block in the way of the inventors, who found that an ordinary locomotive

was able to climb a much steeper grade than was commonly supposed. The

first railroads were laid almost level, but it was soon discovered that

a grade of a few feet to the mile was no impediment to progress, and

gradually the grade was steepened.

The inventors of mountain railroad transportation might have been

discouraged by this discovery, but it is a characteristic of an inventor

that he is not set back by opposition, which, in fact, only serves to

stimulate his zeal. The projectors of inclined roads and mountain

engines kept steadily on, and in France, Germany, England, and the

United States many experimental roads were constructed, each of a few

hundred yards in length, and locomotive models were built and put in

motion to the amazement of the general public, who jeered alike at the

contrivances and the contrivers, deeming the former impracticable and

the latter crazy.

But the idea of building a road up the side of a hill was not to be

dismissed. There was money in it for the successful man, so the cranky

inventors kept on at work in spite of the jeers of the rabble and the

discouragements of capitalists loath to invest their money in an

uncertain scheme. To the energy and perseverance of railroad inventors

the success of the mountain railroad is due, as also is the construction

of the various mountain roads, of which the road up Mt. Washington,

finished in 1868, was the first, and the road up Pike's Peak, completed

the other day, was the latest.

Of all the mountain roads which have been constructed since the one up

Mt. Washington was finished, the best known is that which ascends the

world-famous Rigi. With the exception of Mont Blanc, Rigi is, perhaps,

the best known of any peak in the Alps, though it is by no means the

highest, its summit being but 5,905 feet above the level of the sea.

Although scarcely more than a third of the height of some other

mountains in the Alps, it seems much higher because of its isolated

position. Standing as it does between lakes Lucerne, Zug, and Lowertz,

it commands a series of fine views in every direction, and he who looks

from the summit of Rigi, if he does no other traveling in Switzerland,

can gain a fair idea of the Swiss mountain scenery. Many of the most

noted peaks are in sight, and from the Rigi can be seen the three lakes

beneath, the villages which here and there dot the shores, and, further

on, the mighty Alps, with their glaciers and eternal snows.

Many years ago a hotel was built on the summit of the Rigi for the

benefit of the tourists who daily flocked to this remarkable peak to

enjoy the benefit of its wonderful scenery. The mountain is densely

wooded save where the trees have been cut away to clear the land for

pastures. The ease of its ascent by the six or eight mule paths which

had been made, the gradual and almost regular slope, and the throngs of

travelers who resorted to it, made it a favorable place for an

experiment, and to Rigi went the engineers in order to ascertain the

practicability of such a road. The credit of the designs is due to a

German engineer named Regenbach, who, about the year 1861, designed the

idea of a mountain road, and drew up plans not only for the bed but also

for the engine and cars. The scheme dragged. Capitalists were slow to

invest their money in what they deemed a wild and impracticable

undertaking, and even the owners of the land on the Rigi were reluctant

for such an experiment to be tried. But Regenbach persevered, and toward

the close of the decade the inhabitants of Vitznau, at the base of the

Rigi, were astonished to see gangs of laborers begin the work of making

a clearing through the forests on the mountain slope. They inquired what

it meant, and were told that a road up the Rigi was to be made. The

Vitznauers were delighted, for they had no roads, and there was not a

wheeled vehicle in the town, nor a highway by which it could be brought

thither. The idea of a railroad in their desolate mountain region, and,

above all, a railroad up the Rigi, never entered their heads, and a

report which some time after obtained currency in the town, that the

laborers were beginning the construction of a railroad, was greeted with

a shout of derision.

Nevertheless, that was the beginning of the Rigi line, and in May, 1871,

the road was opened for traffic. It begins at Vitznau, on Lake Lucerne,

and extends to the border of the canton and almost to the top of the

mountain. It is 19,000 feet long, and during that distance rises 4,000

feet at an average grade of 1 foot in 4. Though steep, it is by no means

so much so as the Mt. Washington road, which rises 5,285 feet above the

sea, at an average of 1 foot in 3. There are, however, stretches of the

Rigi road at which the grade is about 1 foot in 2½, which is believed to

be the steepest in the world.

The Rigi road has several special features aside from its terrific

slopes which entitle it to be considered a triumph of the engineer's

skill. About midway up the mountains the builders came to a solid mass

of rock, which presented a barrier that to a surface road was

impassable. They determined to tunnel it, and, after an enormous

expenditure of labor, finished an inclined tunnel 225 feet in length, of

the same gradient as the road. A gorge in the side of the mountain where

a small stream, the Schnurtobel, had cut itself a passage also hindered

their way, and was crossed by a bridge of lattice girder work in three

spans, each 85 feet long. The entire roadbed, from beginning to end, was

cut in the solid rock. A channel was chiseled out to admit the central

beam, which contains the cogs fitting the driving wheel of the

locomotive. The engine is in the rear of the train, and presents the

exceedingly curious feature of a boiler greatly inclined, in order that

at the steeper gradients it may remain almost perpendicular. The coal

and water are contained in boxes over the driving wheels, so that all

the weight of the engine is really concentrated on the cogs--a

precaution to prevent their slipping. The cost of the road, including

three of these strangely constructed locomotives, three passenger

coaches, and three open wagons, was $260,000, and it is a good paying

investment. The fare demanded for the trip up the mountains is 5 francs,

while half that sum is required for the downward passage, and the road

is annually traversed by from 30,000 to 50,000 passengers.

Curious sensations are produced by a ride up this remarkable line. The

seats of the cars are inclined like the boiler of the locomotive, and so

long as the cars are on a level the seats tilt at an angle which renders

it almost impossible to use them. But when the start is made the

frightful tilt places the body in an upright position, and, with the

engine in the rear, the train starts up the hill with an easy, gliding

motion, passing up the ascent, somewhat steeper than the roof of a

house, without the slightest apparent effort. But if the going up

excites tremor, much more peculiar are the feelings aroused on the down

grade. The trip begins with a gentle descent, and all at once the

traveler looking ahead sees the road apparently come an end. On a nearer

approach he is undeceived and observes before him a long decline which

appears too steep even to walk down. Involuntarily he catches at the

seats, expecting a great acceleration of speed. Very nervous are his

feelings as the train approaches this terrible slope, but on coming to

the incline the engine dips and goes on not a whit faster than before

and not more rapidly on the down than on the up grade. Many people are

made sick by the sensation of falling experienced on the down run. Some

faint, and a few years ago one traveler, supposed to be afflicted with

heart disease, died of fright when the train was going over the

Schnurtobel bridge. The danger is really very slight, there not having

been a serious accident since the road was opened. The attendants are

watchful, the brakes are strong, but even with all these safeguards, men

of the steadiest nerves cannot help wondering what would become of them

in case anything went wrong.

Bold as was the project of a railroad on the Rigi, a still bolder scheme

was broached ten years later, when a daring genius proposed a railroad

up Mt. Vesuvius. A railroad up the side of an ordinary mountain seemed

hazardous enough, but to build a line on the slope of a volcano, which

in its eruption had buried cities, and every few years was subject to a

violent spasm, seemed as hazardous as to trust the rails of an ordinary

line to the rotten river ice in spring time. The proposal was not,

however, so impracticable as it looked. While the summit of Vesuvius

changes from time to time from the frequent eruptions, and varies in

height and in the size of the crater, the general slope and contour of

the mountain are about the same to-day as when Vesuvius, a wooded hill,

with a valley and lake in the center of its quiescent crater, served as

the stronghold of Spartacus and his rebel gladiators. There have been

scores of eruptions since that in which Herculaneum and Pompeii were

overthrown, but the sides of the mountain have never been seriously

disturbed.

A road on Vesuvius gave promise of being a good speculation. Naples and

the other resorts of the neighborhood annually attracted many thousands

of visitors, and a considerable number of these every year ascended the

volcano, even when forced to contend with all the difficulties of the

way. Many, however, desiring to ascend, but being unable or unwilling to

walk up, a chair service was established--a peculiar chair being slung

on poles and borne by porters. In course of time the chair service

proved to be inadequate for the numbers who desired to make the ascent,

and the time was deemed fit for the establishment of more speedy

communication.

Notwithstanding the necessity, the proposal to establish a railroad met

with general derision, but the scheme was soon shown to be perfectly

practicable, and a beginning was made in 1879. The road is what is known

as a cable road, there being a single sleeper with three rails, one on

the top which really bore the weight, and one on each side near the

bottom, which supported the wheels, which coming out from the axle at a

sharp angle, prevented the vehicle from being overturned. The road

covers the last 4,000 feet of the ascent, and the power house is at the

bottom, a steel cable running up, passing round a wheel at the top and

returning to the engine in the power house. The ascent to the lower

terminus of the road is made on mules or donkeys; then, in a comfortable

car, the traveler is carried to a point not far from the crater. The car

is a combined grip and a passenger car, similar in some points to the

grip car of the present day, while the seats of the passenger portion

are inclined as in the cars on the Rigi road. But the angle of the road

being from thirty-three to forty-five degrees, makes both ascent and

descent seem fearfully perilous. Every precaution, however, is taken to

insure the safety of passengers; each car is provided with several

strong and independent brakes, and thus far no accident worth recording

has occurred. The road was opened in June, 1880. Although there have

been several considerable eruptions since that date, none of them did

any damage to the line but what was repaired in a few hours.

The fashion thus set will, no doubt, be followed in many other quarters.

Wherever there is sufficient travel to pay working expenses and a profit

on a steep grade mountain road it will probably be built. Already there

is talk of a road on Mont Blanc, of another up the Yungfrau, and several

have been projected in the Schwartz and Hartz mountains. A route on Ben

Nevis, in Scotland, is already surveyed, and it is said surveys have

also been made up Snowden, with a view to the establishment of a road to

the summit of the highest Welsh peak. Sufficient travel is all that is

necessary, and when that is guaranteed, whenever a mountain possesses

sufficient interest to induce people to make its ascent in considerable

numbers, means of transportation, safe and speedy, will soon be

provided. The modern engineer is able, willing and ready to build a road

to the top of Mt. Everest in the Himalayas if he is paid for doing

so.--_St. Louis Globe-Democrat._

* * * * *

To clean hair brushes, wash with weak solution of washing soda, rinse

out all the soda, and expose to sun.

* * * * *

Scientific American Supplement, No. 821, September 26, 1891 · 第 15 / 55 题