It has been already said that the Bell Rock rises only a few feet out of
the sea at low tide. The foundation of the tower, sunk into the solid
rock, was just three feet three inches above low water of the lowest
spring-tides, so that the lighthouse may be said with propriety to be
founded beneath the waves.
One great point that had to be determined at the commencement of the
operations was the best method of landing the stones of the building,
this being a delicate and difficult process, in consequence of the
weight of the stones and their brittle nature, especially in those parts
which were worked to a delicate edge or formed into angular points. As
the loss of a single stone, too, would stop the progress of the work
until another should be prepared at the workyard in Arbroath and sent
off to the rock, it may easily be imagined that this matter of the
landing was of the utmost importance, and that much consultation was
held in regard to it.
It would seem that engineers, as well as doctors, are apt to differ.
Some suggested that each particular stone should be floated to the rock,
with a cork buoy attached to it; while others proposed an air-tank,
instead of the cork buoy. Others, again, proposed to sail over the rock
at high water in a flat-bottomed vessel, and drop the stones one after
another when over the spot they were intended to occupy. A few, still
more eccentric and daring in their views, suggested that a huge
cofferdam or vessel should be built on shore, and as much of the
lighthouse built in this as would suffice to raise the building above
the level of the highest tides; that then it should be floated off to
its station on the rock, which should be previously prepared for its
reception; that the cofferdam should be scuttled, and the ponderous mass
of masonry, weighing perhaps 1000 tons, allowed to sink at once into its
place!
All these plans, however, were rejected by Mr Stevenson, who resolved
to carry the stones to the rock in boats constructed for the purpose.
These were named praam boats. The stones were therefore cut in
conformity with exactly measured moulds in the workyard at Arbroath, and
conveyed thence in the sloops already mentioned to the rock, where the
vessels were anchored at a distance sufficient to enable them to clear
it in case of drifting. The cargoes were then unloaded at the moorings,
and laid on the decks of the praam boats, which conveyed them to the
rock, where they were laid on small trucks, run along the temporary
rails, to their positions, and built in at once.
Each stone of this building was treated with as much care and solicitude
as if it were a living creature. After being carefully cut and
curiously formed, and conveyed to the neighbourhood of the rock, it was
hoisted out of the hold and laid on the vessel's deck, when it was
handed over to the landing-master, whose duty it became to transfer it,
by means of a combination of ropes and blocks, to the deck of the praam
boat, and then deliver it at the rock.
As the sea was seldom calm during the building operations, and
frequently in a state of great agitation, lowering the stones on the
decks of the praam boats was a difficult matter.
In the act of working the apparatus, one man was placed at each of the
guy-tackles. This man assisted also at the purchase-tackles for raising
the stones; and one of the ablest and most active of the crew was
appointed to hold on the end of the fall-tackle, which often required
all his strength and his utmost agility in letting go, for the purpose
of lowering the stone at the instant the word "lower" was given. In a
rolling sea, much depended on the promptitude with which this part of
the operation was performed. For the purpose of securing this, the man
who held the tackle placed himself before the mast in a sitting, more
frequently in a lying posture, with his feet stretched under the winch
and abutting against the mast, as by this means he was enabled to exert
his greatest strength.
The signal being given in the hold that the tackle was hooked to the
stone and all ready, every man took his post, the stone was carefully,
we might almost say tenderly, raised, and gradually got into position
over the praam boat; the right moment was intently watched, and the word
"lower" given sternly and sharply. The order was obeyed with exact
promptitude, and the stone rested on the deck of the praam boat. Six
blocks of granite having been thus placed on the boat's deck, she was
rowed to a buoy, and moored near the rock until the proper time of the
tide for taking her into one of the landing creeks.
We are thus particular in describing the details of this part of the
work, in order that the reader may be enabled to form a correct estimate
of what may be termed the minor difficulties of the undertaking.
The same care was bestowed upon the landing of every stone of the
building; and it is worthy of record, that notwithstanding the
difficulty of this process in such peculiar circumstances, not a single
stone was lost, or even seriously damaged, during the whole course of
the erection of the tower, which occupied four years in building, or
rather, we should say, four _seasons_, for no work was or could be done
during winter.
A description of the first entire course of the lower part of the tower,
which was built solid, will be sufficient to give an idea of the general
nature of the whole work.
This course or layer consisted of 123 blocks of stone, those in the
interior being sandstone, while the outer casing was of granite. Each
stone was fastened to its neighbour above, below, and around by means of
dovetails, joggles, oaken trenails, and mortar. Each course was thus
built from its centre to its circumference, and as all the courses from
the foundation to a height of thirty feet were built in this way, the
tower, up to that height, became a mass of solid stone, as strong and
immovable as the Bell Rock itself. Above this, or thirty feet from the
foundation, the entrance-door was placed, and the hollow part of the
tower began.
Thus much, then, as to the tower itself, the upper part of which will be
found described in a future chapter. In regard to the subsidiary works,
the erection of the beacon house was in itself a work of considerable
difficulty, requiring no common effort of engineering skill. The
principal beams of this having been towed to the rock by the _Smeaton_,
all the stanchions and other material for setting them up were landed,
and the workmen set about erecting them as quickly as possible, for if a
single day of bad weather should occur before the necessary fixtures
could be made, the whole apparatus would be infallibly swept away.
The operation being, perhaps, the most important of the season, and one
requiring to be done with the utmost expedition, all hands were, on the
day in which its erection was begun, gathered on the rock, besides ten
additional men engaged for the purpose, and as many of the seamen from
the _Pharos_ and other vessels as could be spared. They amounted
altogether to fifty-two in number.
About half-past eight o'clock in the morning a derrick, or mast, thirty
feet high, was erected, and properly supported with guy-ropes for
suspending the block for raising the first principal beam of the beacon,
and a winch-machine was bolted down to the rock for working the
purchase-tackle. The necessary blocks and tackle were likewise laid to
hand and properly arranged. The men were severally allotted in squads
to different stations; some were to bring the principal beams to hand,
others were to work the tackles, while a third set had the charge of the
iron stanchions, bolts, and wedges, so that the whole operation of
raising the beams and fixing them to the rock might go forward in such a
mariner that some provision might be made, in any stage of the work, for
securing what had been accomplished, in case of an adverse change of
weather.
The raising of the derrick was the signal for three hearty cheers, for
this was a new era in the operations. Even that single spar, could it
be preserved, would have been sufficient to have saved the workmen on
that day when the _Smeaton_ broke adrift and left them in such peril.
This was all, however, that could be accomplished that tide. Next day,
the great beams, each fifty feet long, and about sixteen inches square,
were towed to the rock about seven in the morning, and the work
immediately commenced, although they had gone there so much too early in
the tide that the men had to work a considerable time up to their middle
in water. Each beam was raised by the tackle affixed to the derrick,
until the end of it could be placed or "stepped" into the hole which had
been previously prepared for its reception; then two of the great iron
stanchions or supports were set into their respective holes on each side
of the beam, and a rope passed round them to keep it from slipping,
until it could be more permanently fixed.
This having been accomplished, the first beam became the means of
raising the second, and when the first and second were fastened at the
top, they formed a pair of shears by which the rest were more easily
raised to their places. The heads of the beams were then fitted
together and secured with ropes in a temporary manner, until the falling
of the tide would permit the operations to be resumed.
Thus the work went on, each man labouring with all his might, until this
important erection was completed.
The raising of the first beams took place on a Sunday. Indeed, during
the progress of the works at the Bell Rock, the men were accustomed to
work regularly on Sundays when possible; but it is right to say that it
was not done in defiance of, or disregard to, God's command to cease
from labour on the Sabbath day, but because of the urgent need of a
lighthouse on a rock which, unlighted, would be certain to wreck
numerous vessels and destroy many lives in time to come, as it had done
in time past. Delay in this matter might cause death and disaster,
therefore it was deemed right to carry on the work on Sundays. [See
note 1.]
An accident happened during the raising of the last large beam of the
beacon, which, although alarming, fortunately caused no damage.
Considering the nature of the work, it is amazing, and greatly to the
credit of all engaged, that so few accidents occurred during the
building of the lighthouse.
When they were in the act of hoisting the sixth and last log, and just
about to cant it into its place, the iron hook of the principal
purchase-block gave way, and the great beam, measuring fifty feet in
length, fell upon the rock with a terrible crash; but although there
were fifty-two men around the beacon at the time, not one was touched,
and the beam itself received no damage worth mentioning.
Soon after the beacon had been set up, and partially secured to the
rock, a severe gale sprang up, as if Ocean were impatient to test the
handiwork of human engineers. Gales set in from the eastward,
compelling the attending sloops to slip from their moorings, and run for
the shelter of Arbroath and Saint Andrews, and raising a sea on the Bell
Rock which was described as terrific, the spray rising more than thirty
feet in the air above it.
In the midst of all this turmoil the beacon stood securely, and after
the weather moderated, permitting the workmen once more to land, it was
found that no damage had been done by the tremendous breaches of the sea
over the rock.
That the power of the waves had indeed been very great, was evident from
the effects observed on the rock itself, and on materials left there.
Masses of rock upwards of a ton in weight had been cast up by the sea,
and then, in their passage over the Bell Rock, had made deep and
indelible ruts. An anchor of a ton weight, which had been lost on one
side of the rock, was found to have been washed up and _over_ it to the
other side. Several large blocks of granite that had been landed and
left on a ledge, were found to have been swept away like pebbles, and
hurled into a hole at some distance; and the heavy hearth of the smith's
forge, with the ponderous anvil, had been washed from their places of
supposed security.
From the time of the setting up of the beacon a new era in the work
began. Some of the men were now enabled to remain on the rock all day,
working at the lighthouse when the tide was low, and betaking themselves
to the beacon when it rose, and leaving it at night; for there was much
to do before this beacon could be made the habitable abode which it
finally became; but it required the strictest attention to the state of
the weather, in case of their being overtaken with a gale, which might
prevent the possibility of their being taken off the rock.
At last the beacon was so far advanced and secured that it was deemed
capable of withstanding any gale that might blow. As yet it was a great
ungainly pile of logs, iron stanchions, and bracing-chains, without
anything that could afford shelter to man from winds or waves, but with
a platform laid from its cross-beams at a considerable height above
high-water mark.
The works on the rock were in this state, when two memorable
circumstances occurred in the Bell Rock annals, to which we shall devote
a separate chapter.
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Note 1. It was always arranged, however, to have public worship on
Sundays when practicable. And this arrangement was held to during the
continuance of the work. Indeed, the manner in which Mr Stevenson
writes in regard to the conclusion of the day's work at the beacon,
which we have described, shows clearly that he felt himself to be acting
in this matter in accordance with the spirit of our Saviour, who wrought
many of His works of mercy on the Sabbath day. Mr Stevenson writes
thus:--
"All hands having returned to their respective ships, they got a shift
of dry clothes, and some refreshment. Being Sunday, they were
afterwards convened by signal on board of the lighthouse yacht, when
prayers were read, for every heart upon this occasion felt gladness,
and every mind was disposed to be thankful for the happy and
successful termination of the operations of this day."
It is right to add that the men, although requested, were not
constrained to work on Sundays. They were at liberty to decline if they
chose. A few conscientiously refused at first, but were afterwards
convinced of the necessity of working on all opportunities that offered,
and agreed to do so.