RPR40: (Alexanderson), Three Radio Communication Articles.
Articles contain some photos and many diagrams and schematics. They are as follows:

1. General Electric Review, Vol XVI, No 1, January 1913. Pages 16 to 22. Generating Apparatus for Wireless Telegraphy and Telephony by E. F. W. Alexanderson. Describes the design of an inductor alternator for producing current at 100,000 to 200,000 cycles direct and an alternator using telephone current for field excitation.

2. General Electric Review, Vol XXIII, No 10, October 1920. Pages 794 to 803. Transoceanic Radio Communication by E. F. W. Alexanderson Discusses his system of telegraphic and telephonic radio as installed at the Naval Radio Station at Brunswick NJ.

3. General Electric Review, Vol XXIII, No 10, October 1920. Pages 813 to 839. The Alexanderson System for Radio Communication by Elmer E. Bucher Describes the construction of Alexanderson's RF alternator and the 200 kw RCA New Brunswick transmitter using such an alternator. A detailed description of the system with details on its magnetic amplifier and antenna system and its tuning.

44 pages total. 2 to 1. (Pages reduced to 75% of original size) $4.50

RPR01: Baden, Anne, Radio and Radio Broadcasting: A Selected List of References.
Washington, Library of Congress, Division of Bibliography, Sept. 1941 109pp w/index. Bibliography lists (1) Bibliographies, (2) Books and Pamphlets, (3) Selected Periodical Writings. (4) Current Periodicals. No material prior to 1930 is listed. Entries for books vary from minimal to lengthy descriptions of chapter titles. 955 entries . 109 pp, 1 to 1. Quality of reproduction not perfect as original was typewritten and spirit duplicated. $15.00

RPR02: Baker, Ray Stannard, Telegraphing Without Wires.
From The Boys Book of Inventions, Doubleday, 1899. pages 78-117 Many photos of Marconi and equipment. A popular discussion, geared for young people. Detail poor in some photo reproductions. 40 pages, 2 to 1. $4.00

RPR03: Baker, Ray Stannard, Marconi's Great Achievements.
From The Boys Second Book of Inventions, McClure 1903. pages 206-253. Describes Marconi's trans-Atlantic transmission, tuning, etc. with several photos of Marconi, wireless stations etc. (Detail may be poor in some photo reproductions). 48 pages 2 to 1. $4.50.

RPR42: Baker, T. Thorne, The Telegraphy of Photographs, Wireless and by Wire.
From the Annual Report of the Smithsonian Institution, 1910. Reproduced from a lecture before the Royal Institution of Great Britain, April 1910. An interesting article describing various systems for wire transmission of pictures that have been used commercially and then describing how a wireless system would work. 18 pages 2 to 1. $2.50.

RPR04: Bureau of Standards, Current Radio Publications of the NBS
Letter Circular LC-40, March 1935. 21 page bibliography of NBS publications. Much material on propagation and aircraft radio applications. 21 pages, 2 to 1. $2.50

RPR05: Bureau of Standards, Sources of Elementary Radio Information
Letter Circular No. 122, Sept. 1923. 16 pp bibliography. of government pubs., books, other sources. 16 pages, 2 to 1. $2.00

RPR06: Bureau of Standards, Sources of Radio Information Letter Circular
No. 438, March 1935. Bibliography of government pubs., books, other sources. 11 pages, 1 to 1, 2 sided. $2.00

RPR35: Collins, A. Frederick, Metamorphosis of Wireless-Telegraph Apparatus.
From Engineering Magazine, June 1904. Pages 360 to 382. Compares the wireless equipment of 1896 with that of 1904 and discusses the advances within those 7 years. Many photos and diagrams, including several of Marconi's equipment. 23 pages, 2 to 1. $3.00

RPR22: Dunmore, F. W., A Unicontrol High-Frequency Radio Direction Finder and A Portable Direction Finder for 90 to 7,700 Kilocycles.
2 Articles in Scientific Papers of the Bureau of Standards Vol. 21, 1926-27. 11 and 22pp. 1st article describes loop antenna, installation and use. 2nd describes construction of D. F. calibration and use. both w/photos, diagrams. 33pp, 2 to 1. $3.00 (See also RPR-27 Below)

RPR24: Erskine-Murray, J., Wireless Communications Over Sea
Transactions of the Institution of Engineers and Shipbuilders in Scotland Vol. LI, 51st Session 1907-1908. Glasgow, 1908. pages 162 to 192. w/photos, diagrams. Discusses signaling in general, wireless theory. Chart of British Wireless Stations. w/discussion. 32 pages. 2 to 1. $3.00

RPR32: Farwell, Winston, Wireless Telephone Wizardry.
Technical World Magazine, Vol XIII, No 3, May 1910. Pages 257 to 264. Discusses the development of the wireless telephone, the equipment and the numerous advantages of Collins' invention. Some photos. 8 pages, 2 to 1. $2.00

RPR07: Fleming, J. A., Hertzian Wave Wireless Telegraphy.
Popular Science Monthly, 1903, 125 pages. Starting in June 1903, Popular Science ran 7 articles by Fleming on Wireless. Theory is covered in detail as is the history of wireless transmitters and detectors. Illus. with small sketches of equipment and schematics. 125 pages, 2 to 1. $7.50

RPR08: Fleming, J. A., On the Electric Conductivity of a Vacuum
Technics (Magazine), April 1905. pp 316-322. Fundamental paper on vacuum tube and its use as a radio detector. 7 pages, 1 to 1. $2.00

RPR19: Fleming, J. A., Researches in Radiotelegraphy
Washington 1910 GPO. From Smithsonian Annual Report 1909 Pages 157-183. A survey of research into wireless propagation and equipment including use of "valves". w/diagrams and 2 photos of equipment. From a Lecture before the Royal Institution of Great Britain 6/4/09. 27 pages. 2 to 1. $3.00

RPR17: Helmholtz , On Later Views of the Connection of Electricity and Magnetism and Maxwell, Clerk, Action at a Distance.
Washington 1874 GPO. From Smithsonian Annual Report 1873. Pages 247-264. Two early non mathematical lectures on electromagnetic theory. The first is from the London Academy, the 2nd from the Proceedings of the London Institution. 19 pages. 2 to 1. $2.50

RPR37: (Hertz) Articles on Hertz's Experiments
Washington 1889 GPO. From Annual Report of the Smithsonian Institution, 1889. Pages 145 to 197. Three articles. They are as follows:

1. de Tunzelmann, B., Hertz's Researches on Electrical Oscillations 45 pages. This is a detailed account of Hertz's experiments and results in investigating electrical oscillations. Reprinted in the Annual Report from various 1888 issues of The Electrician.

2. Trouton, F., Repetition of Hertz's Experiments 7 pages. Discusses his repetition of Hertz's work, and the determination of the direction of vibration of light. From Nature, Feb 21, 1889.

3. Trouton, F., Experiments on Electro-Magnetic Radiation 3 pages. Continuation of 2nd article above including some experiments on the phase of secondary waves. From Nature, Aug. 22, 1889.

53 pages, 2 to 1. $5.50

RPR27: Kolster, F. A.., and Dunmore F. W.., The Radio Direction Finder and Its Application to Navigation
Scientific Papers of the Bureau of Standards. No. 428 1922 in Vol. 17 1922 GPO. pp 529 to 568. Describes a D. F. system using xmitters at light stations and shipboard receivers. Describes results of tests using this equipment. w/diagrams and photos. 40pages. $5.00 (See also RPR 22 above)

RPR21: (Loomis) Casdorph, Paul, Mahlon Loomis and the "Aerial Telegraph"
Charleston WV 1980 Copy of article from West Virginia History Spring 1980. Biography of Loomis with emphasis on his Aerial Telegraph experiments. w/illus. of Loomis sketches. 21 pages. 2 to 1. $2.50

RPR23: Marconi, G., Wireless Telegraphy
Washington 1902 GPO. From Annual Report of the Smithsonian Institution 1901. pp 287-298. Reprint of Proc. of Royal Institution of G.B., Vol. XVI read at meeting Feb. 2, 1900. Plus excerpts from newspaper accounts on receipt of trans-oceanic signals in Dec. 1901. 12 pages. 2 to 1. $2.00

RPR09: Marconi, G., Recent Advances in Wireless Telegraph
Washington 1907 GPO. From Annual Report of the Smithsonian Institution, 1906 pp 131-145. Abstract of paper read before the Royal Institution of Great Britain, March 3, 1905. Reprint from transactions of the Royal Instit.. Interesting history of the development of wireless including transatlantic communications. 15 pages, 2 to 1. $2.00

RPR20: Marconi, G., Radiotelegraphy
Washington 1912 GPO From Annual Report of The Smithsonian Institution. pp 117-131. From Proceedings. of Royal Institution of GB from presentation at same of 6/2/11. Much discussion of Clifden (Ireland) station and various propagation effects. w/diagrams. 15 pages. 2 to 1. $2.00

RPR34: Marconi, G., Syntonic Wireless Telegraphy.
From Electrical Review, June 15, 1901, June 22, 1901, and June 29, 1901. Pages 754-756, 781-786, 820. Three articles. The first two are by Marconi and are a published version of a presentation before the Society of Arts, London, May 15, 1901, dealing with the tuning, or syntonizing of wireless systems. The third is a review and discussion on the importance of Marconi's paper by several notable members of the Society of Arts. 10 pages, 1 to 1. $2.50

RPR10: Maver, William, Jr., Wireless Telegraph, Its Past and Present Status and Its Prospects.
Washington 1903 GPO. From Annual Report of the Smithsonian Institution 1902, pp 261-274. Reprinted from Cassiers Magazine, January 1902. Describes early history, Hertz's and Lodge's experiments, and Marconi's work. With photos and diagrams of equipment. 14 pages, 2 to 1. $2.00 (Order RPR10 and RPR41 together for $3.)

RPR41: Maver, William, Jr., Progress in Wireless Telegraph
Washington 1905 GPO. From Annual Report of the Smithsonian Institution 1904, pp 275-280. Reprinted from Cassiers Magazine, June 1903. Gives short historical review then discusses both new detectors and other recent progress. With small diagrams of equipment. 6 pages, 2 to 1. $2.00 (Order RPR10 and RPR41 together for $3.)

RPR11: Maver, W. Jr., Observations on the Operation of Wireless Telegraphy on La Grande Duchesse.
From Electrical World and Engineer, Oct. 14, 1899, Page 568. Describes the use of wireless in reporting the international yacht races between Columbia and Shamrock. 1 page, 1 to 1. Free with any order. (Be sure to specify if wanted)

RPR43: McCormick, W. H., Wireless Telegraphy and Telephony: Principles and Apparatus and Wireless Telegraphy: Practical Applications.
2 chapters from Electricity by W. H. McCormick. London: T. C. & E. C. Jack, Ltd. pages 179-212. Describes the basics of wireless telegraphy with much on various detectors and transmitters. The current status and problems with wireless telephony are also covered. The Practical Applications chapter discusses current worldwide wireless stations and communication with ships at sea. A short section discusses possible wireless systems for railroads. 34 pages 2 to 1. $3.50.

RPR29: Moffett, Cleveland, Marconi’s Wireless Telegraph
From McClure’s Magazine, June 1899 (Vol XIII No. 2) Pages 99 to 112. Gives short history and then describes Marconi stations in England with long interviews with engineers. w/photos. 14 pages. 2 to 1. $2.00

RPR38: Nasmyth, G.W., Experiments in Impact Excitation.
From Electrician & Mechanic, October 1911, abstracted from Physical Review. Pages 215 to 225. Briefly reviews the history of impact excitation, then looks at the author's experiments using the Lepel generator. Basically, this is a study of the nature of arcs used in radio transmission. 11 pages, 2 to 1. $2.00

RPR36: National Radio Institute, Technical Development of Commercial Radio.
Washington, 1932. 1938 edition. Reference booklet from the NRI. Discusses early transmitters, early receivers, the Alexanderson and Goldschmidt alternators, signalling transformers, multiple tuned antennas, and tube transmitters. 28 pages, reproduction of original booklet. $3.50

RPR16: Poulsen, V., System for Producing Continuous Electric Oscillations
From Vol. II, Transactions of International Electrical Congress St. Louis, 1904. Describes experiments with the arc oscillator. With diagrams and photo. 10 pages. 1 to 1. $2.00

RPR18: Slaughter, N. H., Wireless Telephony
Washington 1920 GPO. From Smithsonian Annual Report 1919 Pages 177-192. Discusses general design of wireless telephony then much detail on aircraft equipment. Then short discussion of future of telephony. w/photos of equipment. Orig. presented at meeting of Electrical and Philadelphia Sections of the AIEE. 16 pages. 2 to 1. $2.00

RPR28: Thomson, Elihu, Wireless Transmission of Energy
Washington 1914 GPO. From Smithsonian Annual Report 1913 Pages 243-260. Discusses general nature of wireless transmission and relationship to transmission by wire. From lecture by author to national Electric Light Assoc. w/small diagrams. 18 pages. 2 to 1. $2.00

RPR13: Two Early Wireless Articles
Washington 1899 GPO. From Annual Report of the Smithsonian Institution 1898. (1) Thompson, Silvanus, Telegraphing Across Space pages 235-247 Reprint from Journal of the Society of Arts, Vol. XLVI, London 1898. Discusses Conduction, Induction and Wave methods of signaling. Discusses Marconi and Slaby experiments. No diagrams or illustrations. (2) Preece, W. H., Signaling Through Space Without Wires pp 249-257. Reprint from Proc. of Royal Inst. of G.B. April 1898. Describes Preece's and Marconi's equipment and experiments. W/diagrams. 22 pages. 2 to 1. $2.50.

RPR14: Trowbridge, John, Wireless Telegraphy
From Popular Science, Nov. 1899 pages 59-73. Discusses Marconi's wireless. A popular and easy to read account. Some speculation on the future of wireless telegraphy and telephony. With photographs of apparatus, electrical pulses etc. 15 pages, 2 to 1. $2.00

RPR39: Walter, M. A., Magnetic Detectors of Electric Waves.
Article form July 1905 Technics Magazine. Pages 127 to 131. Describes various magnetic detectors including Marconi's, Shoemaker's, Wilson's. This is the 1st part only of a 2 part article. With small drawings of various detectors. 4 1/3 pages. 2 to 1. $2.

RPR15: Articles from "The World's Work"
Articles from The World's Work magazine as follows: "The Advance of Wireless", by Eugene Lyle Jr., WW 1905 covers commercial and military uses. "Wireless Telegraphy" WW 1911 (illus.) covers Marconi's work to date. WW 1911(illus.) "Wireless Telephone" describes Natan Stubblefield's system (in the ground). 1 to 1. 21pp total. $4.00