Heroes of the Telegraph

by John Munro

The first electric tramway run at Berlin in 1879 was followed by another at Dusseldorf in 1880, and a third at Paris in 1881. With all of these the name of Werner Siemens was chiefly associated; but William Siemens had also taken up the matter, and established at his country house of Sherwood, near Tunbridge Wells, an arrangement of dynamos and water-wheel, by which the power of a neighbouring stream was made to light the house, cut chaff turn washing-machines, and perform other household duties. More recently the construction of the electric railway from Portrush to Bushmills, at the Giant's Causeway, engaged his attention; and this, the first work of its kind in the United Kingdom, and to all appearance the pioneer of many similar lines, was one of his very last undertakings.

In the recent development of electric lighting, William Siemens, whose fame had been steadily growing, was a recognised leader, although he himself made no great discoveries therein. As a public man and a manufacturer of great resources his influence in assisting the introduction of the light has been immense. The number of Siemens machines and Siemens electric lamps, together with measuring instruments such as the Siemens electro-dynamometer, which has been supplied to different parts of the world by the firm of which he was the head, is very considerable, and probably exceeds that of any other manufacturer, at least in this country.

Employing a staff of skilful assistants to develop many of his ideas, Dr. Siemens was able to produce a great variety of electrical instruments for measuring and other auxiliary purposes, all of which bear the name of his firm, and have proved exceedingly useful in a practical sense.

Among the most interesting of Siemens's investigations were his experiments on the influence of the electric light in promoting the growth of plants, carried out during the winter of 1880 in the greenhouses of Sherwood. These experiments showed that plants do not require a period of rest, but continue to grow if light and other necessaries are supplied to them. Siemens enhanced the daylight, and, as it were, prolonged it through the night by means of arc lamps, with the result of forcing excellent fruit and flowers to their maturity before the natural time in this climate.

While Siemens was testing the chemical and life-promoting influence of the electric arc light, he was also occupied in trying its temperature and heating power with an 'electric furnace,' consisting of a plumbago crucible having two carbon electrodes entering it in such a manner that the voltaic arc could be produced within it. He succeeded in fusing a variety of refractory metals in a comparatively short time: thus, a pound of broken files was melted in a cold crucible in thirteen minutes, a result which is not surprising when we consider that the temperature of the voltaic arc, as measured by Siemens and Rosetti, is between 2,000 and 3,000 Deg. Centigrade, or about one-third that of the probable temperature of the sun. Sir Humphry Davy was the first to observe the extraordinary fusing power of the voltaic arc, but Siemens first applied it to a practical purpose in his electric furnace.

Always ready to turn his inventive genius in any direction, the introduction of the electric light, which had given an impetus to improvement in the methods of utilising gas, led him to design a regenerative gas lamp, which is now employed on a small scale in this country, either for street lighting or in class-rooms and public halls. In this burner, as in the regenerative furnace, the products of combustion are made to warm up the air and gas which go to feed the flame, and the effect is a full and brilliant light with some economy of fuel. The use of coal-gas for heating purposes was another subject which he took up with characteristic earnestness, and he advocated for a time the use of gas stoves and fires in preference to those which burn coal, not only on account of their cleanliness and convenience, but on the score of preventing fogs in great cities, by checking the discharge of smoke into the atmosphere. He designed a regenerative gas and coke fireplace, in which the ingoing air was warmed by heat conducted from the back part of the grate; and by practical trials in his own office, calculated the economy of the system. The interest in this question, however, died away after the close of the Smoke Abatement Exhibition; and the experiments of Mr. Aiken, of Edinburgh, showed how futile was the hope that gas fires would prevent fogs altogether. They might indeed ameliorate the noxious character of a fog by checking the discharge of soot into the atmosphere; but Mr. Aiken's experiments showed that particles of gas were in themselves capable of condensing the moisture of the air upon them. The great scheme of Siemens for making London a smokeless city, by manufacturing gas at the coal-pit and leading it in pipes from street to street, would not have rendered it altogether a fogless one, though the coke and gas fires would certainly have reduced the quantity of soot launched into the air. Siemens's scheme was rejected by a Committee of the House of Lords on the somewhat mistaken ground that if the plan were as profitable as Siemens supposed, it would have been put in practice long ago by private enterprise.

From the problem of heating a room, the mind of Siemens also passed to the maintenance of solar fires, and occupied itself with the supply of fuel to the sun. Some physicists have attributed the continuance of solar heat to the contraction of the solar mass, and others to the impact of cometary matter. Imbued with the idea of regeneration, and seeking in nature for that thrift of power which he, as an inventor, had always aimed at, Siemens suggested a hypothesis on which the sun conserves its heat by a circulation of its fuel in space. The elements dissociated in the intense heat of the glowing orb rush into the cooler regions of space, and recombine to stream again towards the sun, where the self-same process is renewed. The hypothesis was a daring one, and evoked a great deal of discussion, to which the author replied with interest, afterwards reprinting the controversy in a volume, ON THE CONSERVATION OF SOLAR ENERGY. Whether true or not—and time will probably decide—the solar hypothesis of Siemens revealed its author in a new light. Hitherto he had been the ingenious inventor, the enterprising man of business, the successful engineer; but now he took a prominent place in the ranks of pure science and speculative philosophy. The remarkable breadth of his mind and the abundance of his energies were also illustrated by the active part he played in public matters connected with the progress of science. His munificent gifts in the cause of education, as much as his achievements in science, had brought him a popular reputation of the best kind; and his public utterances in connection with smoke abatement, the electric light. Electric railways, and other topics of current interest, had rapidly brought him into a foremost place among English scientific men. During the last years of his life, Siemens advanced from the shade of mere professional celebrity into the strong light of public fame.

President of the British Association in 1882, and knighted in 1883, Siemens was a member of numerous learned societies both at home and abroad. In 1854 he became a Member of the Institution of Civil Engineers; and in 1862 he was elected a Fellow of the Royal Society. He was twice President of the Society of Telegraph Engineers and the Institution of Mechanical Engineers, besides being a Member of Council of the Institution of Civil Engineers, and a Vice-President of the Royal Institution. The Society of Arts, as we have already seen, was the first to honour him in the country of his adoption, by awarding him a gold medal for his regenerative condenser in 1850; and in 1883 he became its chairman. Many honours were conferred upon him in the course of his career—the Telford prize in 1853, gold medals at the various great Exhibitions, including that of Paris in 1881, and a GRAND PRIX at the earlier Paris Exhibition of 1867 for his regenerative furnace. In 1874 he received the Royal Albert Medal for his researches on heat, and in 1875 the Bessemer medal of the Iron and Steel Institute. Moreover, a few days before his death, the Council of the Institution of Civil Engineers awarded him the Howard Quinquennial prize for his improvements in the manufacture of iron and steel. At the request of his widow, it took the form of a bronze copy of the 'Mourners,' a piece of statuary by J. G. Lough, originally exhibited at the Great Exhibition of 1851, in the Crystal Palace. In 1869 the University of Oxford conferred upon him the high distinction of D.C.L. (Doctor of Civil Law); and besides being a member of several foreign societies, he was a Dignitario of the Brazilian Order of the Rose, and Chevalier of the Legion of Honour.

Rich in honours and the appreciation of his contemporaries, in the prime of his working power and influence for good, and at the very climax of his career, Sir William Siemens was called away. The news of his death came with a shock of surprise, for hardly any one knew he had been ill. He died on the evening of Monday, November 19, 1883, at nine o'clock. A fortnight before, while returning from a managers' meeting of the Royal Institution, in company with his friend Sir Frederick Bramwell, he tripped upon the kerbstone of the pavement, after crossing Hamilton Place, Piccadilly, and fell heavily to the ground, with his left arm under him. Though a good deal shaken by the fall, he attended at his office in Queen Anne's Gate, Westminster, the next and for several following days; but the exertion proved too much for him, and almost for the first time in his busy life he was compelled to lay up. On his last visit to the office he was engaged most of the time in dictating to his private secretary a large portion of the address which he intended to deliver as Chairman of the Council of the Society of Arts. This was on Thursday, November 8, and the following Saturday he awoke early in the morning with an acute pain about the heart and a sense of coldness in the lower limbs. Hot baths and friction removed the pain, from which he did not suffer much afterwards. A slight congestion of the left lung was also relieved; and Sir William had so far recovered that he could leave his room. On Saturday, the 17th, he was to have gone for a change of air to his country seat at Sherwood; but on Wednesday, the 14th, he appears to have caught a chill which affected his lungs, for that night he was seized with a shortness of breath and a difficulty in breathing. Though not actually confined to bed, he never left his room again. On the last day, and within four hours of his death, we are told, his two medical attendants, after consultation, spoke so hopefully of the future, that no one was prepared for the sudden end which was then so near. In the evening, while he was sitting in an arm-chair, very quiet and calm, a change suddenly came over his face, and he died like one who falls asleep. Heart disease of long standing, aggravated by the fall, was the immediate cause; but the opinion has been expressed by one who knew him well, that Siemens 'literally immolated himself on the shrine of labour.' At any rate he did not spare himself, and his intense devotion to his work proved fatal.

Every day was a busy one with Siemens. His secretary was with him in his residence by nine o'clock nearly every morning, except on Sundays, assisting him in work for one society or another, the correction of proofs, or the dictation of letters giving official or scientific advice, and the preparation of lectures or patent specifications. Later on, he hurried across the Park 'almost at racing speed,' to his offices at Westminster, where the business of the Landore-Siemens Steel Company and the Electrical Works of Messrs. Siemens Brothers and Company was transacted. As chairman of these large undertakings, and principal inventor of the processes and systems carried out by them, he had a hundred things to attend to in connection with them, visitors to see, and inquiries to answer. In the afternoon and evenings he was generally engaged at council meetings of the learned societies, or directory meetings of the companies in which he was interested. He was a man who took little or no leisure, and though he never appeared to over-exert himself, few men could have withstood the strain so long.