the life of thomas telford-第45节
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Craig…Ellachie a light cast…iron arch of 150 feet span; with a rise
of 20 feet; the arch being composed of four ribs; each consisting
of two concentric arcs forming panels; which are filled in with
diagonal bars。
The roadway is 15 feet wide; and is formed of another arc of
greater radius; attached to which is the iron railing; the
spandrels being filled by diagonal ties; forming trelliswork。
Mr。 Robert Stephenson took objection to the two dissimilar arches;
as liable to subject the structure; from variations of temperature;
to very unequal strains。 Nevertheless this bridge; as well as many
others constructed by Mr。 Telford after a similar plan; has stood
perfectly well; and to this day remains a very serviceable
structure。
'Image' Craig…Ellachie Bridge。
Its appearance is highly picturesque。 The scattered pines and beech
trees on the side of the impending mountain; the meadows along the
valley of the Spey; and the western approach road to the bridge cut
deeply into the face of the rock; combine; with the slender
appearance of the iron arch; in rendering this spot one of the most
remarkable in Scotland。*'13' An iron bridge of a similar span to that
at Craig…Ellachie had previously been constructed across the head
of the Dornoch Frith at Bonar; near the point where the waters of
the Shin join the sea。 The very severe trial which this structure
sustained from the tremendous blow of an irregular mass of fir…tree
logs; consolidated by ice; as well as; shortly after; from the blow
of a schooner which drifted against it on the opposite side; and
had her two masts knocked off by the collision; gave him every
confidence in the strength of this form of construction; and he
accordingly repeated it in several of his subsequent bridges;
though none of them are comparable in beauty with that of
Craig…Ellachie。
Thus; in the course of eighteen years; 920 miles of capital roads;
connected together by no fewer than 1200 bridges; were added to the
road communications of the Highlands; at an expense defrayed partly
by the localities immediately benefited; and partly by the nation。
The effects of these twenty years' operations were such as follow
the making of roads everywheredevelopment of industry and
increase of civilization。 In no districts were the benefits
derived from them more marked than in the remote northern counties
of Sutherland and Caithness。 The first stage…coaches that ran
northward from Perth to Inverness were tried in 1806; and became
regularly established in 1811; and by the year 1820 no fewer than
forty arrived at the latter town in the course of every week; and
the same number departed from it。 Others were established in
various directions through the highlands; which were rendered as
accessible as any English county。
Agriculture made rapid progress。 The use of carts became
practicable; and manure was no longer carried to the field on
women's backs。 Sloth and idleness gradually disappeared before the
energy; activity; and industry which were called into life by the
improved communications。 Better built cottages took the place of
the old mud biggins with holes in their roofs to let out the smoke。
The pigs and cattle were treated to a separate table。 The dunghill
was turned to the outside of the house。 Tartan tatters gave place
to the produce of Manchester and Glasgow looms; and very soon few
young persons were to be found who could not both read and write
English。
But not less remarkable were the effects of the road…making upon
the industrial habits of the people。 Before Telford went into the
Highlands; they did not know how to work; having never been
accustomed to labour continuously and systematically。 Let our
engineer himself describe the moral influences of his Highland
contracts:〃In these works;〃 says he; 〃and in the Caledonian
Canal; about three thousand two hundred men have been annually
employed。 At first; they could scarcely work at all: they were
totally unacquainted with labour; they could not use the tools。
They have since become excellent labourers; and of the above number
we consider about one…fourth left us annually; taught to work。
These undertakings may; indeed; be regarded in the light of a
working academy; from which eight hundred men have annually gone
forth improved workmen。 They have either returned to their native
districts with the advantage of having used the most perfect sort
of tools and utensils (which alone cannot be estimated at less than
ten per cent。 on any sort of labour); or they have been usefully
distributed through the other parts of the country。 Since these
roads were made accessible; wheelwrights and cartwrights have been
established; the plough has been introduced; and improved tools and
utensils are generally used。 The plough was not previously
employed; in the interior and mountainous parts they used crooked
sticks; with iron on them; drawn or pushed along。 The moral habits
of the great masses of the working classes are changed; they see
that they may depend on their own exertions for support: this goes
on silently; and is scarcely perceived until apparent by the
results。 I consider these improvements among the greatest
blessings ever conferred on any country。 About two hundred thousand
pounds has been granted in fifteen years。 It has been the means of
advancing the country at least a century。〃
The progress made in the Lowland districts of Scotland since the
same period has been no less remarkable。 If the state of the
country; as we have above described it from authentic documents;
be compared with what it is now; it will be found that there are few
countries which have accomplished so much within so short a period。
It is usual to cite the United States as furnishing the most
extraordinary instance of social progress in modem times。 But
America has had the advantage of importing its civilization for the
most part ready made; whereas that of Scotland has been entirely
her own creation。 By nature America is rich; and of boundless
extent; whereas Scotland is by nature poor; the greater part of her
limited area consisting of sterile heath and mountain。 Little more
than a century ago Scotland was considerably in the rear of Ireland。
It was a country almost without agriculture; without mines; without
fisheries; without shipping; without money; without roads。
The people were ill…fed; half barbarous; and habitually indolent。
The colliers and salters were veritable slaves; and were subject to
be sold together with the estates to which they belonged。
What do we find now? Praedial slavery completely abolished;
heritable jurisdictions at an end; the face of the country entirely
changed; its agriculture acknowledged to be the first in the world;
its mines and fisheries productive in the highest degree; its
banking a model of efficiency and public usefulness; its roads
equal to the best roads in England or in Europe。 The people are
active and energetic; alike in education; in trade; in manufactures;
in construction; in invention。 Watt's invention of the steam
engine; and Symington's invention of the steam…boat; proved a
source of wealth and power; not only to their own country; but to
the world at large; while Telford; by his roads; bound England and
Scotland; before separated; firmly into one; and rendered the union
a source of wealth and strength to both。
At the same time; active and powerful minds were occupied in
extending the domain of knowledge;Adam Smith in Political
Economy; Reid and Dugald Stewart in Moral Philosophy; and Black and
Robison in Physical Science。 And thus Scotland; instead of being
one of the idlest and most backward countries in Europe; has;
within the compass of little more than a lifetime; issued in one of
the most active; contented; and prosperous;exercising an amount
of influence upon the literature; science; political economy; and
industry of modern times; out of all proportion to the natural
resources of its soil or the amount of its population。
If we look for the causes of this extraordinary social progress;
we shall probably find the principal to consist in the fact that
Scotland; though originally poor as a country; was rich in Parish
schools; founded under the provisions of an Act passed by the
Scottish Parliament in the year 1696。 It was there ordained
〃that there be a school settled and established; and a schoolmaster
appointed; in every parish not already provided; by advice of the
heritors and minister of the parish。〃 Common day…schools were
accordingly provided and maintained throughout the country for the
education of children of all ranks and conditions。 The consequence
was; that in the course of a few generations; these schools;
working steadily upon the minds of the young; all of whom passed
under the hands of the teachers; educated the population into a
state of intelligence and a