ul

The Western Union Telegraph Company: revised tariff and rules: January, 1898.

Archives, Room Use Only - HE7797.W53 W47 1898




ul

The Western Union Telegraph Company: revised tariff and rules: July, 1896.

Archives, Room Use Only - HE7797.W53 W47 1896




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The Western Union Telegraph Company: revised tariff and rules: July, 1898.

Archives, Room Use Only - HE7797.W53 W47 1898b




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Decision of Hon. Philip F. Thomas, commissioner of patents, on the application of Samuel F.B. Morse, for an extension of his patent for a new and useful improvement in electro-magnetic telegraphs: patented April 11, 1846: patent extended for seven years f

Archives, Room Use Only - KF228.M674 U55 1860




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An act to aid in the construction of a railroad & telegraph line from the Missouri River to the Pacific Ocean: approved July 1, 1862.

Archives, Room Use Only - HE2763.U55 1867




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A thrilling and truthful history of the pony express, or, Blazing the westward way: and other sketches and incidents of those stirring times / by William Lightfoot Visscher

Archives, Room Use Only - F594.V57 1946




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Roster of the Signal Corps, U.S.A., 1861-1865: 1. Members whose addresses are known; 2. Members who have died; 3. Members whose addresses are unknown / compiled by the Secretary, U.S. Veteran Signal Corps Association, July 1901

Archives, Room Use Only - UG573.U78 1901




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Great facts: a popular history and description of the most remarkable inventions during the present century / by Frederick C. Bakewell

Archives, Room Use Only - T19.B35 1860




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The secret corresponding vocabulary: adapted for use to Morse's electro-magnetic telegraph, and also in conducting written correspondence, transmitted by the mails, or otherwise / by Francis O.J. Smith, Esq

Archives, Room Use Only - HE7673.S65 1845




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Regulations for United States military telegraph lines, Alaskan cables, and wireless telegraph stations, U.S. Signal Corps / prepared under the direction of Brigadier General James Allen, Chief Signal Officer of the Army, 1911

Archives, Room Use Only - UG603.A76 1912




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The legacy of William R. Plum: Civil War telegrapher, lawyer, and horticulturist / by Gerry Rader Watts

Archives, Room Use Only - E608.P73 W38 1999




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Constitution of the Order of Railroad Telegraphers: revised and amended at the twenty-fifth regular and second triennial session of the Grand Division, held at St. Louis, Mo., May, 1927.

Archives, Room Use Only - HD6515.T252 O73 1927




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Telecommunications: economics and regulation / by James M. Herring and Gerald C. Gross

Archives, Room Use Only - HE206.H47 1974




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Duplex and quadruplex telegraphy, multiplex telegraphy, testing of circuits, printing and messenger-call systems, submarine telegraphy, high-speed telegraphy.

Archives, Room Use Only - TK5531.D87 1913




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Wireless telegraphy and telephony without wires: a popular account of the past and present of wireless telegraphy and telephony which assumes no previous knowledge of the subject on the part of the reader / by Charles R. Gibson

Archives, Room Use Only - TK5745.G53 1914




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Wonderful inventions: from the mariner's compass to the electric telegraph cable / by John Timbs

Archives, Room Use Only - T15.T56 1867




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Den elektriske telegraf: populært fremstillet / af Christian Selmer

Archives, Room Use Only - TK5745.S45 1864




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Signalling: Morse, semaphore station work, despatch riding, telephone cables, map reading / written by an officer of the Regular Army and edited by Captain E.J. Solano

Archives, Room Use Only - UG580.S65 1916




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The thorough cipher code for telegraphing and for written communications where secrecy is desirable: a carefully compiled arrangement of ciphers and commercial and general meanings: with easy methods for the largest possible use of condensed material and

Archives, Room Use Only - HE7669.B87 1891




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Kleine Telegraphen-Schule für jüngere Post- und Telegraphenbeamte: ein hilfsbuch zum Selbstunterricht behufs Erlangung der Befähigung zur selbständigen Wahrnehmung des technischen Telegraphendienstes und zur Vorbereitung auf die Postas

Archives, Room Use Only - TK5262.K54 1917




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Chapman's principia, or, Nature's first principles: theory of universal electro-magnetism, simplified: explaining the elements of the important discovery of the laws of nature, which regulate the changes of the elements: exposing the numerous disc

Archives, Room Use Only - QC670.C43 1855




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Extrait des règlements généraux applicable sur les réseaux Est, Êtat, P.L.M., P.O.: extract from general regulations in effect on the Est, Etat, P.L.M., P.O. railways: for the use of members of the Transportation Department engag

Archives, Room Use Only - TF559.E98 1918




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Popular lectures and addresses / by Sir William Thomson

Archives, Room Use Only - Q171.K29 1891




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On the application of the principle of the galvanic multiplier to electro-magnetic apparatus: and also to the development of great magnetic power in soft iron with a small galvanic element / by Prof. Joseph Henry ..

Archives, Room Use Only - QC611.H46 1831




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Mit Spulen, Draht und Morsetaste / Martin Selber ; Zeichnungen von Editha Rosenthal und Heinz-Karl Bogdanski

Archives, Room Use Only - TK5265.S45 1953




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Rules and regulations for the government of employees of the Philadelphia & Reading Railroad Co.: to take effect January 1st, 1876: approved by the President.

Archives, Room Use Only - HE2791.P55 P55 1875




ul

Kleine Telegraphen-Schule für Postanwärter und Postgehülfen: ein Hülfsbuch zum Selbstunterricht behufs Erlangung des Befähigungs-Zeugnisses für den technischen Telegraphendienst bei vereinigten Verkehrsämtern: mit 100 er

Archives, Room Use Only - TK5262.K54 1897




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Centenary of the Netherlands Telegraph Service: exhibition at The Hague, July 19th through September 28th, 1952: bulletin of the Organizing Committee.

Archives, Room Use Only - HE7045.C46 1952




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London international telephone exchange: reproduced from the Post Office Electrical Engineers' Journal of July, 1934 / by S. Birch and C.H. Hartwell

Archives, Room Use Only - TK6211.B57 1934




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Newly invented portable field telegraph: with an illustration of the principle of its construction and directions for use: also containing the vocabulary of the several characters formed / invented and arranged by A.W. Sleigh

Archives, Room Use Only - UG590.S54 1838




ul

Library of useful knowledge / published under the superintendence of the Society for the Diffusion of Useful Knowledge

Archives, Room Use Only - QC21.L53 1827b




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How to make and use electricity: a description of the wonderful uses of electricity and electro-magnetism, together with full instructions for making electric toys, batteries, etc., etc. / by George Trebel, A.M., M.D. ; containing over fifty illustrations

Archives, Room Use Only - QC527.T73 1895




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Rules and regulations to be observed by telegraph clerks, and all persons sending railway messages, or engaged in working the telegraphs on the London and North Western Railway.

Archives, Room Use Only - TK5263.L66 1906




ul

Scientific tracts, for the diffusion of useful knowledge ...: complete in one volume.

Archives, Room Use Only - Q171.S42 1836




ul

Rules and regulations for the guidance of the officers and servants employed in the Telegraph Department, and also of such officers and servants in the Traffic Department as are required to possess a knowledge of, or to assist those working the telegraph

Archives, Room Use Only - TK5263.R85 1878




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The Western Union Telegraph Company: rules.

Archives, Room Use Only - HE7797.W53 W47 1884




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Optisk telegraf: förhistoria och uppkomst samt utveckling i Sverige i relation till postverket / av Paul Gerhard Heurgren

Archives, Room Use Only - HE9723.H48 1932




ul

[Collection of Atlantic, Lake and Mississippi Telegraph circulars].

Archives, Room Use Only - TK5123.6.C665 1847




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Relevant π-hole tetrel bonding interactions in ethyl 2-triazolyl-2-oxoacetate derivatives: Hirshfeld surface analysis and DFT calculations

CrystEngComm, 2020, Advance Article
DOI: 10.1039/D0CE00335B, Paper
Muhammad Naeem Ahmed, Khawaja Ansar Yasin, Shahid Aziz, Saba Urooge Khan, Muhammad Nawaz Tahir, Diego Mauricio Gil, Antonio Frontera
We report the synthesis and X-ray characterization of four triazole derivatives that include an α-ketoester functionality and two phenyl substituents. The compounds form self-assembled dimers in the solid state establishing two symmetrically equivalent O⋯π-hole interactions.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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