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    Dark Light by Simon, Linda

    The modern world imagines that the invention of electricity was greeted with great enthusiasm. But in 1879, Americans reacted to the advent of electrification with suspicion and fear. Forty years after Thomas Edison invented the incandescent bulb, only 20 percent of American families had wired their homes. Meanwhile, electrotherapy emerged as a popular medical treatment for everything from depression to digestive problems. Why did Americans welcome electricity into their bodies even as they kept it from their homes? And what does their reaction to technological innovation then have to teach us about our reaction to it today? In Dark Light , Linda Simon offers the first cultural history that delves into those questions, using newspapers, novels, and other primary sources. Tracing fifty years of technological transformation, from Morse's invention of the telegraph to Roentgen's discovery of X rays, she has created a revealing portrait of an anxious age.



    Dark Light: Electricity and Anxiety from the Telegraph to the X-Ray by Simon, Linda

    First Edition - first printing - hardcover - autographed by author on Title page.  In great condition, text unmarked, bookplate inside front cover, light wear to dust jacket.



    Wonderful experiments! . . . Electricity . . . [Broadside]. by Electricity

    1850. Rare 19th Century American Electricity Broadside [Electricity] Wonderful experiments! At the [Liberty Hall (Groton)] this evening, [Feb. 19] inst. Dr. Fisk begs to inform the ladies and gentlemen of this place, that he will give one night of pleasing and instructive amusement . . . Broadside. Woodcut illustrations. N.p.: Samuel B. Hall, n.d. [ca. 1850]. 627 x 225 mm. Small portion of one corner torn (not affecting text), some creasing, minor stains, but very good. Rare nineteenth-century American broadside advertising Dr. Fisk's traveling show offering a "pleasing and instructive" demonstration of the many and varied uses of electricity. Among the marvels promised were "a splendid railway engine . . . driven by electricity, 200 miles per hour," "electro-magnetic engines, of immense power . . . driving a variety of useful machines," and "cannons and fireworks . . . fired by electricity." The broadside also proclaims that "a medical galvanizing machine will be at work for the benefit of all," which Dr. Fisk (whom we have not been able to identify) would use to make "chickens . . . fly without heads," and "sheep that have been dead some time . . . jump and run about." The broadside has blank spaces for inserting the place and date of Dr. Fisk's performance, which have been filled in with the words "Liberty Hall (Groton [Connecticut])" and "Feb. 19" in pencil in a nineteenth-century hand.



    Servicing Record Changers GERNSBACK LIBRARY NO. 59 by Mileaf, Harry

    New York: Gernsback Library Inc., 1956. First Edition . Hardcover. Very Good/No Jacket. 8vo - over 7¾ - 9¾" tall. GERNSBACK LIBRARY NO. 59, Very good green cloth. Light wear, soiling, clean interior, no jacket. (1956), 8vo, [4], 5-224pp. "This book deals with one of the technician's biggest mechanical problems, the automatic record changer.



    Practical Electrical Wiring: Residential, Farm, and Industrial by Richter, H. P.;Schwan, W. Creighton;National Fire Protection Association

    Blacklick, Ohio, U.S.A.: McGraw-Hill Book Co Ltd, 1982. 12th Edition . Hardcover. Near Fine/Very Good. 8vo - over 7¾" - 9¾" tall. ILLUSTRATED, Fine black hardcover. Very good black DJ. Some edge and cover wear. (1982), 8vo, 662pp.



    Theory and Practice of Absolute Measurements in Electricity and Magnetism by Gray, Andrew

    London and New York: MacMillan and Co, 1893. First Edition. Cloth. Good. First Edition. The complete set, 2 volumes in 3. Publisher's original green cloth. Volume 1 (1888): xxiv, [1]-518, [1] pages. Additional errata sheet tipped in after page xxiv (page xxiv mis-printed as xiv). Volume 2, Part I (1893): xxiii, [5 errata followed by small tipped in errata], [1]-346 pages. Volume 2, Part II (1893): xx, [347]-868 pages. Additional errata sheet tipped in after page xx. 1888-1893. All volumes are ex-library with spine lettering, occasional embossed stamps, bookplate on front flyleafs, and pockets in rear. Volume 1 has cracked hinges , several worn areas to the rear joint, and the headband has a shallow chip extending to the level of the textblock. The last volume (in 2) shows little wear. Otherwise clean internally. Minor wear to bindings at corners. Volume 2 part 1 appears to be a later issue, with 5 pages of errata preceding the main text rather than one page as found in other copies. A nice clean set, not often used with gilt lettering on spine still bright. Cloth. This work is a significant extension of the author's earlier work titled "Absolute measurements in electricity and magnetism" published by MacMillan in 1884. Gray [02/07/1847-10/10/1925] was a Scottish physicist and mathematician who was Private Secretary to Sir William Thomson 1875-80; Professor 1884-99, Physics, University College, Bangor, North Wales; 1899-1924, Natural Philosophy, Glasgow University, and was elected to the Royal Society of Edinburgh in May 1883, and a Fellow of the Royal Society in June of 1896. He was also Councillor RSE from 1903-6, and Vice-President 1906-9. (Royal Society Edinburgh Biographical Index, p 379).



    Principles Of Electricity Applied to Telephone And Telegraph Work : a training course text prepared for employees of the Long Lines Dept., American Telephone and Telegraph Company, June, 1961. by American Telephone & Telegraph Company Staff

    USA: American Telephone & Telegraph Company, 1961. Reprint Edition . Hardcover. Very Good/No Jacket. 4to - over 9¾ - 12" tall. Very good green cloth. Light wear, previous owner name inside, no jacket. (1961), 4to, [14], 1-365pp. [1], "The rapid growth and development of the communication art over the years has necessitated the incorporation of numerous new or changed illustrative applications in each succeeding edition. This, of course, remains true from the present volume. In addition, the introduction of new technologies and new instrumentalities of first importance has made it desirable to include such new material in such fields as semi-conductor theory and the transmission of high-frequency electromagnetic waves.



    Autograph letter signed to Mr. Becker. by Everett, Joseph David

    1872. Good +. Everett, Joseph David (1831-1904). A.L.s. to Mr. Becker. Belfast, December 7, 1872. 1- pp. 178 x 113 mm. Tear in left margin affecting 1 word, remains of mounting present. Provenance: Latimer Clark. Everett served as secretary of the British Association's committee on electrical standards between 1871 and 1873. His letter concerns a piece of scientific equipment he had ordered: "a stand for putting the resistance coils in connection with each other . . . with metallic projections to fit the interior of the coils. . . ." Origins of Cyberspace 141.



    Handbook of Logic Circuits by Lenk, John D

    Reston, Virginia, USA: Reston Pub Co, 1972. Seventh Printing . Hardcover. Near Fine/Very Good. 8vo - over 7¾" - 9¾" tall. ILLUSTRATED, Fine green cloth. Very good green white DJ. Some wear and tear to DJ. (1972), 8vo, 307pp. [1], "The first chapter is an introduction to logic circuits...It summarizes the entire subject of logic design. The remaining chapters cover such subjects as basic logic networks, decoders, encoders, function generators, parity networks, comparators, data distributors and selectors, adders, subtracters, and miscellaneous combinational networks..."



    Autograph letter signed to Latimer Clark by Jenkin, Henry Charles Fleeming

    1866. Very Good. Jenkin, Henry Charles Fleeming (1833-85). A.L.s. to Latimer Clark. St. Adelphi, January[?] 23, 1866. 2pp. 204 x 127 mm. Holes punched in upper margin. Provenance: Latimer Clark. Jenkin, a British engineer, served as secretary of the British Association's Electric Standards Committee (formed in 1861), which was responsible for setting and naming the standard units of electrical quantity and resistance. Between 1858 and 1872 Jenkin worked in the design and manufacture of submarine cables, performing the first accurate measurements of the specific inductive capacity of gutta-percha (used in submarine cable insulation) in 1862. His letter requests information on the comparative qualities of two different types of submarine cable: "Can you give me the exact gain which you derived in the Persian Gulf cable in the use of the segmented wire, i.e. what the discharge was with the common strand and 225 [illeg.] 275 S.P. and what the discharge with the segmented wire same weights? If not with those exact weights can you give me the exact ratio of the discharges in any two cases where the same weights of materials were used-of the exact weights of materials required to produce the same discharge?" Origins of Cyberspace 167.



    Experimental researches in electricity - twenty-eight series. On the Lines of Magnetic Force; their definitive character; and their distribution within a Magnet and through Space. [With:] Ibid. - twenty-ninth series. On the employment of the Induced Magneto-electric Current as a test and measure of Magnetic Forces by FARADAY, MICHAEL

    London: Taylor and Francis, 1852. First edition. Original Wrappers. Very Good. FIRST EDITION IN ORIGINAL WRAPPERS of two papers containing Faraday's detailed investigations of the nature of the 'lines of force'; an extension of work he had begun in his first paper (1821) on electromagnetism. These investigations laid the foundations of field theory. "Faraday's work on electromagnetic rotations led him to take a view of electromagnetism different from that of most of his contemporaries. Where they focused on the electrical fluids and the peculiar forces engendered by their motion (Ampère's position), he was forced to consider the line of force. He did not know what it was in 1821, but he suspected that it was a state of strain in the molecules of the current carrying wire and the surrounding medium produced by the passage of an electrical 'current' (whatever that was) through the wire … It was the line of force which tied all his researches on electricity and magnetism together" (DSB). "It was not until July of 1851 that Faraday was able to turn his attention fully to the investigation of the intimate nature of lines of force... His purpose was nothing less than to supply a general view of the modes of action of force. Central to this view was the physical reality of the lines of force. "The basic question to which Faraday turned in the summer of 1851 concerned the interpretation of the pattern made by iron filings sprinkled on a card over a magnet. The filings arranged themselves in lines; were these lines 'real' or were they merely the result of the interaction of the magnet and the iron filings? Faraday had long viewed them as strains of some sort but it was now time to discover their true nature. If strains, to what were they connected so that the strain could be imposed along the line of force? The electrostatic line of force was firmly anchored in electrically excited matter and the strain, transmitted along the curves of the intervening polarized particles, ended in positively and negatively charged surfaces. An electrostatic line of force could start in a charged sphere and leap across a room to the wall. If the sphere were positively charged, the part of the wall where the line of force ended would be negative. The line, and the particles in between were all polar having 'positive' and 'negative' ends. Magnetic lines were peculiar in that they always returned to the body from which they emanated. It was impossible to hold up a sphere 'charged' with north magnetism and trace a line of magnetic force across a room to a south pole on the wall. Wherever a north pole existed, a south was also to be found, nearby, in the same body. The ends of the line of force, then, had to be the poles of the magnet. This was where the strain originated; here must be where the original tension was applied. "When examined critically this explanation made little sense. An iron magnet was, after all, relatively homogeneous. Why, then, should two particular spots, indistinguishable from other places, become poles? Why, to put it another way, should the lines of force terminate at all? From 1845 to 1850 Faraday had gradually convinced himself that the actual particles of magnetic or diamagnetic substances counted for very little in magnetic phenomena. Why, then, call in particles merely to have an anchor for the lines of force? Could not poles be dispensed with altogether? "The first thing that had to be done was to make certain that the lines of force really existed independently of the iron filings that illustrated their forms so beautifully. Since iron itself was magnetic, it was possible that the magnetic curves might be the result of placing iron filings over a magnet and that when the filings were not present, the curves vanished. The use of a compass needle was open to the same objections. If the lines of force were created by the interaction of the needle and the magnet, the needle would still trace them out as if the lines existed independently of the needle. One method alone appeared free from fault. A conducting wire in the presence of a magnet showed no effect; when the wire was moved across the lines of force, a current was generated. The moving wire involved no attraction, repulsion, or other polar effects. The lines of force detected by this method would, therefore, not appear to be created by the presence of the wire. 'So,' Faraday concluded, 'a moving wire may be accepted as a correct philosophical indication of the presence of magnetic force' (3083). "The existence of the lines of force gave no hints about their essential properties. Were they continuous curves, or were they actually attached to points in the magnet called poles? If they were continuous curves, then the lines of force ought to pass through the magnet as well as around it in the external medium. Could these lines be detected inside the magnet? Faraday devised a very simple apparatus for this purpose. Two bar magnets were placed side by side with similar poles next to one another. The two magnets were separated by a thin piece of wood, reaching from the middle of the magnets to one end. The two magnets were then placed in a wooden axle so that they could be rotated about their mutual axis. A copper collar was then placed around the magnets at their middle. A loop of wire could now be arranged so as to make contact with the collar at one end and with a galvanometer at the other. Another wire ran from the galvanometer, down the groove left between the two magnets, and then up to the collar. Each element in the apparatus could be rotated separately; the two magnets around their mutual axis, the wire running down the centre on its axis, and the loop of copper wire around an axis more or less coincident with the extension of the magnetic axis. With this apparatus, Faraday could hope to detect lines of force if they ran through the magnet as well as through the medium in which the magnet was immersed. He first repeated the experiments he had done in 1832 with the rotating magnet to be certain that the lines of force did not rotate with the magnet. 'No mere rotation of a bar magnet on its axis, produces any induction effect on circuits exterior to it', he reported. 'The system of power about the magnet must not be considered as necessarily revolving with the magnet, any more than the rays of light which emanate from the sun are supposed to revolve with the sun' (3090). The conclusion that the lines of force did not move with the magnet reinforced the idea that they were, in a sense, independent of the magnet. This independence must also exist within the magnet. Such independence now could easily be shown. The power of a magnet could be measured precisely in terms of the current generated in a wire cutting the lines of force. Faraday clearly showed that the current (or, better, in modern terms, the electromotive force) directly proportional to the number of lines cut. When all the lines of force were cut, no matter whether the cut was perpendicular or oblique to the lines, the current in the detecting wire was the same (3109-3114). 'The quantity of electricity thrown into a current is directly as the amount of curves intersected' (3113). Knowing this, the existence of the lines of force within the magnet could be determined with great precision. 'there exists lines of force within the magnet, of the same nature as those without. What is more, they are exactly equal in amount to those without. They have a relation in direction to those without; and in fact are continuations of them, absolutely unchanged in their nature, so far as the experimental test can be applied to them. Every line of force therefore, at whatever distance it may be taken from the magnet, must be considered as a closed circuit, passing in some part of its course through the magnet, and having an equal amount of force in every part of its course' (3116-7). "The implications … were literally revolutionary. If Faraday were correct and the lines of force did actually exist with the properties he attributed to them, then the whole structure of orthodox electric and magnetic science must come tumbling down. The orthodox theories were founded upon central forces acting inversely as the square of the distance; Faraday's new theory rejected central forces. The polarity that was the necessary complement of central forces had been banished. There was no polarity exclusive of the line of force and even this polarity was an odd one … polarity was the direction of the line of force, and as such, it was a polarity without poles. Since attraction and repulsion must be attraction to or a repulsion from some point (which then could be considered a pole) Faraday explicitly rejected attraction and repulsion as real magnetic phenomena. Not only did his work on magnetic conduction contradict the older forms of attraction and repulsion, but these older ideas were now capable of preventing further progress by blinding men to new approaches. 'To assume that pointing is always the direct effect of attractive and repulsive forces acting in couples (as in the cases in question, or as in bismuth crystals), is to shut out ideas, in relation to magnetism, which are already applied in the theories of the nature of light and electricity; and the shutting out of such ideas may be an obstruction to the advancement of truth and a defence of wrong assumptions and error' (3156). "There is no doubt that Faraday knew exactly how unorthodox he was and that his ideas were bound to meet with opposition. He knew, too, from which quarter the opposition would come. Hence his insistence upon the experimental aspect of his theory. 'I keep working away at Magnetism,' he wrote to Schoenbein, 'whether well or not I will not say. It is at all events to my own satisfaction. Experiments are beautiful things and I quite revel in the making of them. Besides they give one such confidence and, as I suspect that a good many think me somewhat heretical in magnetics or perhaps rather fantastical, I am very glad to have them to fall back upon.' The mathematical physicist was unlikely to reject the simplicity of the inverse square law for anything so distinctly unmathematical as the lines of force. It was to this point that Faraday addressed himself in what may well be called the credo of the experimentalist. 'As an experimentalist', he wrote, 'I feel bound to let experiment guide me into any train of thought which it may justify; being satisfied that experiment, like analysis, must lead to strict truth if rightly interpreted; and believing also, that it is in its nature far more suggestive of new trains of thought and new conditions of natural power (3159). Experiment and his own theories had led him to the physical reality of the lines of force. It was with considerable hesitancy, however, that he presented his new conclusions on the nature of the lines of force at the end of the Twenty-eighth Series: Whilst writing this paper I perceive, that, in the late Series of these Researches, Nos. XXV, XXVI, XXVII, I have sometimes used the term lines of force so vaguely, as to leave the reader doubtful whether I intended it as a merely representative idea of the forces, or as the description of the path along which the power was continuously exerted. What I have said in the beginning of this paper … will render that matter clear. I have as yet found no reason to wish any part of those papers altered, except these doubtful expressions; but that will be rectified if it be understood, that, wherever the expression line of force is taken simply to represent the disposition of the forces, it shall have the fullness of that meaning; but that wherever it may seem to represent the idea of the physical mode of transmission of the force, it expresses in that respect the opinion to which I incline at present. The opinion may be erroneous, and yet all that relates or refers to the disposition of the force will remain the same (3175). "It was not until 1852 that Faraday insisted upon the reality of the lines of force. In his paper 'On the Physical Character of the Lines of Force', he informed the reader that 'I am now about to leave the strict line of reasoning for a time, and enter upon a few speculations respecting the physical character of the lines of force, and the manner in which they may be supposed to be continued through space' (3243). There can be no doubt that Faraday was firmly convinced that the lines of force were real. The fact that the magnetic force was transmitted along curves, and that these curves were continuous was evidence enough for him. 'I cannot conceive curved lines of force without the conditions of a physical existence in that immediate space' (3258). The reality of the physical lines of force was thus established. But this reality immediately raised a new question. How was the magnetic force transmitted through the lines of force? The search for an answer to this question led Faraday to the foundations of field theory" (Pierce Williams, Michael Faraday, pp. 444-450). This volume contains the 28th and 29th series of Faraday's remarkable Experimental Researches in Electricity, comprising sections 3070-3176 and 3177-3242, respectively. In: Philosophical Transactions, Vol. 142, Part I. London: Taylor and Francis, 1852. Quarto (301 x 231 mm), original wrappers; custom cloth box. A little wear to spine and 7cm closed tear to lower part of front hinge. Rare in original wrappers.



    THE ARTIST'S GUIDE AND MECHANIC'S OWN BOOK,; embracing the portion of chemistry applicable to the mechanic arts, with abstracts on elctricity, galvanism, magnetism, [neumatics, optics, astronomy, and mechanical philosophy and mechanical exercises in iron, steel, lead, zinc, copper, and tin soldering and a variety of useful receipts, extending to every prosion and occupation of life: particularly dyeing, silk, woolen, cotton, and leather by PILKINGTON, James

    Portland: Sanborn & Carter, 1847. 8vo, pp. viii, 490. Engraved frontispiece, Some water stain and little foxing, rebound in modern cloth, stamped in gilt. Good copy.



    Compedium d'Électricité Médicale... Troisième édition, Revue, corrigée et augmentée d'un Aperçu des progrès faits en ëlectro-therapie jusqu'en 1868 by VAN HOLSBEEK, Henri (1829-1879)

    Bruxelles,: Henri Manceaux,, 1868.. xiii, [i, blank], 680 pp. Small 8vo (12 x 18 cm.). Contemporary half dark green morocco, spine gilt lettered (partly slightly rubbed); marbled end-papers. With 15 text figures. ¶ Last and best edition of this comprehensive compendium on all aspects of the medical application of electricity up to that date. The first 165 pages comprising an important "Revue historique et Bibliographique de l'électricité médicale". --(A few pages slightly browned or foxed).



    Basic Electricity by Marcus, Abraham

    Englewood Cliffs, New Jersey: Prentice-Hall, Inc., 1969. Third Edition . Hardcover. Very Good/No Jacket. 8vo - over 7¾" - 9¾" tall. ILLUSTRATED, Very good orange color illustrated cloth. Light wear, previous owner name inside, no jacket. (1969), 8vo, xii, [2], 514pp. "This book is a text on the fundamentals of electricity... The first, and introductory, section deals with the question of What is Electricity?...The second section deals with direct-current phenomena...Alternating current is discussed in the third section. The fourth section concerns itself with the sources of electrical energy...Section V deals with the transmission and control of electric power. Practical applications of electricity are discussed in section VI. No book on electricity would be complete without mention of electronics. Section VII deals with this subject..."



    Electric Light Fitting A Handbook For Working Electrical Engineers Embodying Practical Notes On Installation Management by Urquhart, John W

    London : Crosby Lockwood And Son, 1893. Second Edition Revised . Hardcover. Good/No Jacket. 8vo - over 7¾ - 9¾" tall. 95 figure illustrations. Good green cloth. Gilt titles. Some wear, soiling, lacking ffep frontis and half-title page. 1893, 8vo, [3], vi-xiii, [1], 1-288pp. [2] pages averts. 48 page Crosby Lockwood catalogue of books. 16 page Weale's Series catalogue bound in.



    Letter signed to Latimer Clark by Laming, Richard

    1877. Very Good. Laming, Richard. L.s. to Latimer Clark. Arundel, February 14, 1877. 1- pp. 179 x 110 mm. Provenance: Latimer Clark. Laming published several memoirs on electricity; see Wheeler Gift. His letter to Clark asks for Clark's help in getting his son, Walter Cecil Laming, a job in the telegraph industry. Origins of Cyberspace 172.



    Flying the Omnirange A Pilot s Guide to the Omnidirectional Radio Range, Distance Measuring Equipment, and the Victor Airways by Zweng, Charles A.;Dohm, John

    North Hollywood, California, U.S.A.: Pan American Navigation Service, 1966. Fifth Edition . Hardcover. Very Good/No Jacket. 8vo - over 7¾" - 9¾" tall. Very good blue cloth. Map Endpapers. Light wear, (September 1966), (1950), 8vo, 9, 8-153pp. [1], "The foundation of the system is very high frequency radio (VHF) operating in the spectrum between 108 and 144 megacycles (mc), Aeronautical VHF embraces the Instrument Landing System (ILS), air-to-ground and ground-to-ground communications, and the omni directional radio ranges that replaced the old four-course ranges."



    On the conversion of electric oscillations into continuous currents by means of a vacuum valve. by Fleming, John Ambrose

    London, 1905. First edition. The Beginning of Electronics Fleming, John Ambrose (1849-1945). On the conversion of electric oscillations into continuous currents by means of a vacuum valve. In Proceedings of the Royal Society. 74 (1905): 476-487. Whole volume, 8vo. [66, variously paginated], 580pp. Plates, text illustrations. Later library buckram, very minor rubbing and wear. Book-label and stamps of the Liverpool Athenaeum. First Edition. Fleming’s paper introducing the basic principle of the two-electrode vacuum tube or diode marked the beginning of electronics. Before the development of the transistor the vacuum tube became the first switch used in the earliest electronic computers. Using vacuum tubes as switches, the first general purpose electronic computer, the ENIAC, operated 10,000 times the speed of a human computer. By comparison, the Harvard Mark 1, which used electromechnical relays as switches, computed 100 times the speed of a human computer. An electrical engineer and physicist who had worked with Thomas Edison's company in London, and a consultant to Guglielmo Marconi, Fleming invented and patented the two-electrode vacuum-tube rectifier, which he called the oscillation valve. This was called a thermionic valve, vacuum diode, kenotron, thermionic tube, or Fleming valve. Fleming' diode was an essential step in the development of radio, In 1906 Lee de Forest introduced a third electrode called the grid into the vacuum tube. The resulting triode could be used both as an amplifier and a switch. In this form the vacuum tube was used in radio receivers and radar until it was superseded by solid state electronics more than 50 years later. The first electronic computer, the ENIAC, used 18,000 vacuum tubes as switches. Vacuum tubes were used in electronic computers until the late 1950s, and they are still manufactured today for specialty analogue Hi-Fi equipment. Printing and the Mind of Man 396 .



    Archer Transistor Substitution Guide Substitution for Up to 15,000 Types by Radio Shack

    Fort Worth, Texas, USA: Radio Shack, 1972. First Edition . Paperback. Very Good/No Jacket. 8vo - over 7¾" - 9¾" tall. ILLUSTRATED, RADIO SHACK 276-2000, Very good white blue card covers. Some wear, one cover nick. (1972), 8vo, 96pp.


    AUD $22.00

    Arithmetic of Alternating Currents containing 50 worked examples and 182 exrercises by Crapper, Ellis H

    London: Sir Isaac Pitman & Sons Ltd. 1946. Octavo Size [approx 15.5 x 22.8cm]. Very Good condition. No dustjacket. Some marking to lboards. Black & white illustrations. Printed on War Economy paper. 208 pages . 1st Edition. Hardback.



    Autograph letter signed to Charles Vincent Walker by Quetelet, Lambert Adolphe Jacques

    1850. Very Good. Quetelet, Lambert Adolphe Jacques (1796-1874). A.L.s. to Charles Vincent Walker (1812-82). Brussels, July 14, 1850. 2pp. 207 x 132 mm. Pin-holes in upper margin, small inkstain in lower corner. Provenance: Latimer Clark. Discusses the construction of telegraph lines in Belgium, and some packages of books on electricity and other subjects that Quetelet was sending to Wheatstone and Faraday. Quetelet, an astronomer at the Brussels Royal Observatory, published several memoirs on atmospheric electricity, terrestrial magnetism, meteorology, and related subjects; however, he is best known as one of the founders of social science. His correspondent, Charles V. Walker, had been involved in telegraphy since the 1840s; in 1848 he sent the first submarine telegraph message from a ship connected by two miles of cable to London Bridge, and in 1876 he served as president of the Society of Telegraph Engineers and Electricians. Origins of Cyberspace 182.



    Galvanism and Sine Current Technique by Morse, Frederick H

    Boston, MA: The Tudor Press, Inc, 1930. First Edition. Hard Cover. Good. First Edition. 254 pages. Publishers' red cloth binding with gold lettering to the spine and front board. Fraying to the head and tail of spine, minor corner wear, and boards bowed away from textblock. Still fundamentally sound. Laid in is "Testimonial Dinner in Honor of Frederic H. Morse, MD., Hotel Sherman, Chicago Ill October 9 1930". Copyright page and opposite page foxed, no doubt where this pamphlet was for many years. INSCRIBED by the author: "To my Friend Julian Vose, I present this little volume founded on the experince of over 40 years in a special work for the relief of suffering and prolongation of exhistance (sic), hoping some of its precepts may apply to your self and family. With best regards, Fred H Morse, Boston March 29th, 37" Hard Cover. INSCRIBED BY THE AUTHOR.



    Autograph letter signed (carbon copy) to Charles Tilston Bright by Jenkin, Henry Charles Fleeming

    1862. Very Good. Jenkin, Henry Charles Fleeming (1833-85). A.L.s. (carbon copy) to Charles Tilston Bright. [London], January 9, 1862. 2pp. 254 x 202 mm. Small holes punched in left margin, traces of mounting present. Provenance: Latimer Clark. Jenkin, a British engineer, served as secretary of the British Association's Electric Standards Committee (formed in 1861), which was responsible for setting and naming the standard units of electrical quantity and resistance. His correspondent, Charles Bright, was co-author with Latimer Clark of "On the formation of standards of electrical quantity and resistance" (1861), which led directly to the formation of the committee. Jenkin here informs Bright that "the Committee of the British Association on Standards of Electrical Resistance are anxious to have the benefit of your valuable advice and propose from time to time to take the liberty of consulting you. "What the National Standard should be and of what metal it should be made are questions which will be brought before you at a later date when the Committee are able to acquaint you with the results of experiments now in progress. Meanwhile, the Committe would be glad tolearn what formof Standar Resistance you could reoommend. The committee wish to compare coils of copper wire wound in various ways, in order to determine the merits of each plan and would be happy to send you a length of copper wire to be wound under your care if you feel disposed to to the trouble and expense of preparing a coil. The Committe are anxious to obtain a coil which shall combine good insulation, convenience of form and permanence of electrical conditions, with the property of rapidity [?], assuming the temperature of the surrounding medium. Copper has been chosen because it is a metal which will bring out clear the possible defects of any of the prosed forms. . . ." Origins of Cyberspace 166.



    Review of the Year 1952 by Sir George E. Bailey, C.B.E. by Associated Electrical Industries Ltd

    London: Mather & Crowther, 1952. Book. Very Good. Card Covers. 1st Edition. 4to - over 9¾ - 12" tall. 48pp, photos, staples sl rusty. With Sir George Bailey's compliments slip..



    Autograph letter signed to Charles Vincent Walker by Page, Charles Grafton

    1845. Very Good. Page, Charles Grafton (1812-68). A.L.s. to Charles Vincent Walker (1812-82). Washington, D.C., June 2, 1845. 1 page. 252 x 200 mm. Remains of mounting present. Provenance: Latimer Clark. Page performed experimental researches in electricity during the middle part of the nineteenth century, inventing a forerunner of the induction coil, the self-acting circuit breaker and a reciprocating electromagnetic engine. He served as one of the US Patent Office's two chief examiners between 1841 to 1852, resigning in the latter year to establish the American Polytechnic Journal, which he cofounded with J. J. Greenough and the manufacturer and capitalist Charles Fleischmann (1834-97). The present letter introduces Fleischmann, who was traveling to "his native country [Hungary] and various parts of Europe." Page's correspondent, Charles V. Walker, had been involved in telegraphy since the 1840s; in 1848 he sent the first submarine telegraph message from a ship connected by two miles of cable to London Bridge, and in 1876 he served as president of the Society of Telegraph Engineers and Electricians. Origins of Cyberspace 179.



    Buchsbaum's Complete Handbook of Practical Electronic Reference Data by Buchsbaum, Walter H

    Englewood Cliffs, New Jersey: Prentice-Hall Canada, Inc., 1973. Fourth Printing . Hardcover. Very Good/Very Good. 4to - over 9¾" - 12" tall. ILLUSTRATIONS, Very good green cloth. Very good green DJ. Light wear. 1973, 4to, xxviii, 529pp. [1],

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