The breakwater in Plymouth Sound, which was designed by my father and commenced in 1815, had made considerable progress; in fact, the great mass of rubble stone had been deposited throughout its entire length, so that vessels of war as well as merchantmen could safely lie under its protection during the heaviest gales from the westward. When I was appointed engineer to the Admiralty, the late excellent Mr. Joseph Whidbey, who was distinguished for his scientific acquirements, and who had sailed round the world with Vancouver, was the superintendent of the breakwater, so that I had but little to do with it until the latter end of 1824, when, on the 22nd and 23rd of November of that year, a violent storm occurred from the south-south-west, the most dangerous wind, and its effect upon the breakwater above low water of spring tides was to disarrange nearly the whole of the superstructure, and to transfer a very large portion of the stone from the south to the north slope. The effects of this severe storm were considered to be so serious as to create considerable doubts as to the security of the breakwater, and even Mr. Whidbey was alarmed. I was accordingly sent by the Admiralty to make a detailed report as to what had occurred. I carefully examined the whole work, and had numerous transverse and longitudinal sections taken to show its exact state, and reported that the main body of the work remained as substantial as ever, but that the rubble from above low water to the top, on the south or sea slope, had only been laid at an angle of 3 to 1, and the waves during the storm above mentioned had in a great measure disturbed it, and had transferred a very large portion from the south to the north slope, increasing the south slope to 5 to 1. Now it is singular that my father, when it was decided to raise the breakwater from the level of half tide (which was the original intention) to above high water of spring tides, always said that the outer slope should be laid at 5 to 1. After his death, however, Mr. Whidbey, with an idea of economy, reduced the south slope to 3 to 1, so that the effects of the storm had been to confirm my father’s views; and not only had no real damage been done, but it had consolidated and strengthened the breakwater materially, and had given a practical example as to the best mode of completing it, and I recommended that the outer slope should be finished at 5 to 1, and the inner at 2 to 1. The Admiralty, however, feeling their responsibility, thought it advisable, in addition to myself, to consult three other experienced engineers, and the late Mr. Telford, Mr. Josias Jessop, and my eldest brother, George, were appointed for that purpose.
We proceeded to Plymouth in the month of March, 1825, and spent several days in examining the breakwater. We finally recommended that the outer slope should be finished at 5 to 1 and the inner at 2 to 1 (as I had previously suggested to the Admiralty), that the outer slope and top should be paved with rough square blocks set closely together, and that the inside slope should be paved with rubble. Mr. Whidbey was, unfortunately, of a different opinion, and recommended a nearly vertical wall of solid masonry on the top, of which the Admiralty did not approve, and adopted our plan, which was ordered to be carried into effect. Mr. Whidbey was so much annoyed that he resigned his situation and retired into private life near Taunton. This was much regretted, as he was a most able and honest public servant, and beloved and respected by everybody who knew him. I was then appointed chief engineer, and upon considering the subject again, I thought that, as the base or toe of the outer slope was the most exposed part of the work, it would be better to strengthen it by benching, which would effectually break the force of the waves before they could reach the main body of the work. This was approved by the Admiralty, and has since been carried into effect with complete success.
I may here relate a curious anecdote in connection with the death of Mr. Perceval. Messrs. Fox, Williams, and Co., the great mining contractors in Cornwall, took the first contract for blasting the rock and depositing the stones on the breakwater. In 1815 Mr. John Fox, a Quaker, having come to town on business, breakfasted with my father and several others, including myself. The conversation happened to turn on the death of Mr. Perceval. Mr. Fox said in a simple, unaffected manner, “I remember it very well; it is a curious story, and now I will tell it you. I was then visiting my friend Williams at Redruth. I went to bed as usual, and awoke in a most restless state, having had an extraordinary dream. I dreamed that I went to the House of Commons, where I had never been before, and having no admission into the interior of the House, I sat down quietly on one of the benches in the lobby, expecting a Cornish member who had promised when I came to London to give me a ticket of admission to hear the debates. Beside me on the bench sat a tall, muscular man (describing Bellingham most exactly), who appeared to be very restless, and continually asking whether Mr. Perceval had come to the House, and every now and then putting his right hand into his left breast pocket. At length, after waiting some minutes, there was a bustle, and several persons near me said that Mr. Perceval was coming; and shortly after Mr. Perceval made his appearance (Mr. Fox describing the exact dress he wore, namely, a blue coat with gilt metal buttons, white cravat and waistcoat, with nankeen shorts, white stockings, and shoes, according to his usual attire in the summer). Immediately after Mr. Perceval made his appearance, the man who sat next to me got up, and, advancing close to Mr. Perceval, drew a pistol from his left breast pocket, fired, and Mr. Perceval fell at his feet. This occasioned great commotion. The man who fired the pistol was at once seized, and I rushed out and asked what had happened, and the bystanders told me that Mr. Perceval had been shot by a man named Bellingham, who was the identical individual who had been a few minutes before sitting by my side. When my dream had come to this point I awoke in the greatest agitation. I could not account for it. I had never seen Mr. Perceval, nor his murderer, Bellingham; I had never been in the lobby of the House, and I had been in no way connected with Mr. Perceval, either by correspondence or otherwise, still I was so much affected by the dream that I felt convinced that Mr. Perceval had been murdered. I passed the remainder of the night in great restlessness. I could not sleep, but was always thinking of the dream, being thoroughly convinced that it was true. I came down to breakfast at the usual hour, in the most anxious and nervous state, which I in vain endeavoured to conceal as much as possible; but my friend and partner Williams and his whole family observed it, and said that I looked very ill, and kindly asked me to explain the cause. After much pressing, I told my story. Friend Williams and the whole of his amiable family said that it was nonsense; that I had been unwell, and still was so, and said that they would send for their family doctor. I said no; I felt perfectly convinced that my dream would, unfortunately, prove but too true, and that the mail, which would arrive in the evening, would bring a confirmation of it. They tried to laugh me out of it, but nothing would do; I therefore went about with my friend Williams, transacting our mining business, being convinced that the arrival of the mail in the evening would confirm the truth of my dream in all particulars. We returned to dinner at five o’clock; at nine the mail arrived, and confirmed every particular of my dream. I was afterwards taken to the House of Commons, where I had never been before, and I correctly pointed out the whole particulars of the melancholy transaction exactly as they occurred, to the astonishment of my friends and the bystanders. The whole story seems so strange that I cannot account for it. I relate it to you just as it occurred to me.”[2]
This is certainly one of those marvellous instances of foresight which baffles all comprehension. John Fox was generally considered by his numerous friends and acquaintance to be a most honest, plain, straightforward, business man, and incapable of stating anything but what he believed to be true. I heard him relate the dream, and my father and all present believed it. The curious part of the story is how he should have dreamed such a thing, being in no way connected with it.
About this time (1825) the several victualling departments of the navy at Plymouth were very inefficient, and divided into three or four establishments—one at Southdown, opposite to Devonport, another at Cremill Point, near Stonehouse, a third at Plymouth, and the fourth in Plymouth town—being several miles from each other, so that the extra expense and delay in provisioning vessels of war was considerable. Upon this being represented to the Admiralty by the Victualling Board, of which the late General Stapleton was the chairman, they determined to make an entirely new victualling establishment, concentrating the whole of the several departments into one, upon a well-organized plan, so that every operation should be carried out with the greatest dispatch and economy.
After much discussion Cremill Point, being nearest to the dockyard at Devonport, and being in other respects, as to depth of water, &c., possessed of peculiar advantages, was finally selected as the best place for the new establishment, and I was ordered by the Victualling Board to prepare the necessary plans, specifications, and estimates, and to see them carried into effect.
Whilst these works were proceeding, a proposal was made to the Admiralty to apply the Cornish system of engines to the Admiralty steam-vessels. Up to this time steam, according to the principle of Watt, not exceeding 5 lb. pressure upon the square inch, was only used, whereas in the Cornish condensing engines steam of the pressure of 37 lb. per square inch was then usual, with much greater effect and economy. I was accordingly sent by the Admiralty to Cornwall to investigate their scheme. I took with me my principal assistant, the late Mr. William Lewin, a very zealous, able, practical engineer. We examined the whole system very carefully at different mines, measured the actual work done and the quantity of fuel consumed, and came to the conclusion that the Cornish system of high-pressure condensing might be applied to the navy with the greatest advantage, and reported the same to the Admiralty. It was not adopted at the time, although high-pressure condensing engines have since been introduced into the navy; at the present time the pressure has advanced to 27 and 28 lb. per square inch, and in the non-condensing engines to 100 and 120 lb. Watt, although he had tried steam at every temperature, yet generally preferred low pressure; his reason for this must have been the imperfect means then at command for controlling it, and perhaps he was right at the time, for the manufacture of wrought iron had not then made sufficient progress to render it capable of resisting with safety the great power of high-pressure steam. He pointed out the way, and others, through the improvements in the manufacture of iron, have profited by his discoveries. I must not omit, in justice to the very talented Mr. Perkins, his views as to the value of high-pressure steam, upon which he made numerous experiments; amongst other things, he proposed to use it as a destructive power in war, by means of his celebrated steam gun, which created much sensation at the time; and it is rather singular that this has not been taken up in modern times, when every invention which can add to the methods of destruction is most greedily adopted. There can be no doubt that the “steam gun” may be used with the most terrible effect in fixed batteries either for musketry or artillery, and probably the day will come when we shall see batteries worked by steam, with a great diminution of manual agency; and the men employed to work them will be so protected as to render the destruction of human life comparatively trifling.
Amongst the other legacies which my dear father had left to me, was that of building London Bridge. He had shown, to the satisfaction of the Committee of the House of Commons, the impracticability of keeping up the old bridge by any amount of repair or alteration; that it could not be rendered fit for the improvement of the river Thames, nor for the continually increasing traffic which must pass over it, at any reasonable expense, and that therefore an entirely new bridge would be by far the most satisfactory. The House of Commons was so fully convinced by his arguments that it unanimously condemned the old bridge, and refused to comply with the recommendation of the City of London that it should be altered, but resolved that a new bridge should be built according to the design made by my father. An Act of Parliament was accordingly passed to this effect, the late talented and energetic Mr. Holme Sumner being the leading member of the Committee. The Corporation demurred to this, saying that there were other engineers equal to Mr. Rennie, and demanding a public competition. The advertisement for designs was accordingly issued, and a great number were sent in and referred to the Committee of the House of Commons and the Government, according to the previous Act. After considering the various rival plans, it was finally decided that that of my father was the only one which complied with all the required conditions, and it was therefore adopted. At this resolution great discontent was manifested by the different competitors. The Corporation of London also objected to this decision, as they considered that they ought to have been the sole judges. But finding that the Government adhered to its decision, they submitted, at the same time urging that they, who were to pay the expense of the new bridge, ought to select the engineer that was to execute the work. The Government agreed to this, subject to their approval; and finally the Committee appointed by the Corporation to carry into effect my father’s design, fixed upon me as the engineer-in-chief; Mr. Richard Lambert Jones was appointed the chairman of the executive committee of the Corporation. A very able and efficient chairman he was, and conducted the whole to a conclusion, to the great satisfaction of the Corporation and of the Government.
The design, as I have already observed, was made by my father, but no detailed working drawings, specification, or estimate, had been prepared by him; it fell to my lot, therefore, to do this. As I had acted under my father during the construction of the Waterloo and Southwark bridges, I had become so thoroughly acquainted with his system, that I had no very great difficulty about it.