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The Electro-Magnetic Practical System of Units. - [WITH AUTHOR'S PRESENTATION INSCRIPTION]
London, William Clowes and Sons, 1882. 8vo. In the original printed sown wrappers. With author's inscription to top of front wrapper: ""from the Author"". A few occassional brown spots. Has been bended vertically. Otherwise a fine copy. 7 pp.
First printing, with author's presentation inscription, of Siemens' proposal to create an universal unit of measurement of resistance. ""Siemens' outstanding contribution to scientific technology was his discovery of the dynamo principle, announced to the Berlin Academy of Sciences in January 1867. Having already introduced the double-T armature, the electromagnetic field, and the external load of an electrical generator in a single circuit, thereby avoiding the costly permanent magnets previously used in the field. Other inventors and scientists discovered the dynamo principle at about the same time"" but Siemens foresaw the consequences of his ""dynamo"" for heavy-current, or power, uses and developed practical applications. His company pioneered in using electricity for streetcars and mine locomotives, in electrolysis, and in central generating stations."" (DSB)
On the Application of the Dynamo-Electric Current to the Fusion of Refractory Materials in Considerable Quantities.
London, WM. Clowes and Sons, 1881. 8vo. In the original blue printed wrappers. Offprint from ""The Journal of the Society of Telegraph Engineers"" Read June 3, 1880. Wrapper loose, otherwise a fine copy. 8 pp. + a folded plate. Two contemporary photos of an engine laid in.
Offprint issue of Siemens's paper on the application of his Dynamo-Electric machine.
The Bakerian Lecture - On the Increase of Electrical Resistance in Conductors with Rise of Temperature, and Its Application to the Measure of Ordinary and Furnace Temperatures" Also on a Simple Method of Measuring Electrical Resistances.
[London, The Royal Society], 1871. 8vo. Without wrappers. Offprint from: ""Proceedings of the Royal Society"", No. 128, 1871. Soiling to extremities. Pp. 443-445.
Offprint of Siemens's lecture on the question of the ratio of increase of resistance in metallic conductors with increase of temperature.
The Malta and Alexandria Telegraph: Comprising of the following papers, [Forde:] I: The Malta and Alexandria Submarine Telegraph Cable. [Siemens:] II: On the Electricfal Tests. - [THE MALTA-ALEXANDRIA CABLE]
London, William CLowes and Sons, 1863. 8vo. In the original printed wrappers with Siemens's inscription to front wrapper: ""to Mr. A. L. Ternant / from Author"". With previous owner's stamp to lower part of front wrapper: ""A. L. Ternant"". Lacking upper part of spine, a few marginal annotations in pencil throughout. 50, (5) pp. + 3 large folded plates.
First printing of this important publication in the history of telegraphs cables with a most interesting presentation inscription: It was given by Siemens to A. L. Ternant, author to several early paper on submarine cables. The Malta-Alexandria cable was ordered by the British government, manufactured by John Pender, and constitute one of the very first submarine telegraph cables. ""The making and laying of the Malta to Alexandria cable gave rise to researches on the resistance and electrification of insulating materials under pressure, which formed the subject of a paper read before the British association in 1863. The effect of pressure up to 300 atmospheres was observed, and the fact elicited that the inductive capacity of gutta-percha is not affected by increased pressure, whereas that of india-rubber is diminished. The electrical tests employed during the construction of the Malta and Alexandria cable, and the insulation and protection of submarine cables, also formed the subject of a paper [the present]."" (Munro, Heros of the Telegraph, P. 72). The Malta-Alexandria cable was the first Siemens was involved in and the experience made him in 1874: ""design the cable ship Faraday and assisted in the laying of the first of several transatlantic cables that it completed. During the last fifteen years of his life he actively supported the development of the engineering profession and its societies and stimulated public interest in the conservation of fuel, the reduction of air pollution and the potential value of electric power in a wide variety of engineering applications.(DSB).In 1859 Glass, Elliot and Company received an order from the British Government to manufacture and lay a cable from Falmouth, England to Gibraltar. The government then changed the route to Rangoon - Singapore and finally to Malta - Alexandria, Egypt.
