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69-871: The United States Senate Librarian manages the Senate Library, which is under the supervision of the Office of the Secretary of the United States Senate . Meghan Dunn has been the Senate Librarian since 2022. The Library is located in the Russell Senate Office Building in SR-B15, and its website and catalog are restricted to Senate staff. The Senate Library was founded during the 2nd Congress (1791–1792) after

138-509: A resolution directing the Secretary to "procure and deposit in his office, the laws of several states " for use by senators. In the early years leading to the library officially becoming established, the library suffered two fires. The first fire occurred during the burning of Washington in 1814 when the British attacked Washington during the War of 1812 and sacked Capitol Hill . To replace

207-418: A compact solution to engineers' unwieldy but frequently consulted materials. He proposed that up to 150,000,000 words could be made to fit in a square inch, and that a one-foot cube could contain 1.5 million volumes. In 1906, Paul Otlet and Robert Goldschmidt proposed the livre microphotographique as a way to alleviate the cost and space limitations imposed by the codex format. Otlet's overarching goal

276-500: A computer to settle the returns for each bet once the details of the wager have been 'translated' into the system by an employee. The added efficiency of this digital system has ensured that there are now very few, if indeed any, betting offices continuing to use microfilm cameras in the UK. Visa and National City use microfilm (roll microfilm and fiche) to store financial, personal, and legal records. Source code for computer programs

345-476: A dispatch that was tightly rolled and tied with a thread, and then attached to a tail feather of the pigeon. The dispatch was protected by being inserted in the quill, which was then attached to the tail feather. The developments in microphotography continued through the next decades, but it was not until the turn of the century that its potential for practical usage was applied more broadly. In 1896, Canadian engineer Reginald A. Fessenden suggested microforms were

414-595: A drawing that is 2.00 × 2.80 metres, that is 79 × 110 in. These films are stored as microfiche. 16 mm or 35 mm film to motion picture standard is used, usually unperforated. Roll microfilm is stored on open reels or put into cassettes. The standard lengths for using roll film is 30.48 m (100 ft) for 35 mm rolls, and 100 ft, 130 ft and 215 feet for 16 mm rolls. One roll of 35 mm film may carry 600 images of large engineering drawings or 800 images of broadsheet newspaper pages. 16 mm film may carry 2,400 images of letter-sized images as

483-483: A light source; this is the negative of text on paper. COM is sometimes processed normally. Other applications require that image appears as a conventional negative; the film is then reversal processed. This outputs either 16 mm film or fiche pages on a 105 mm roll. Because listing characters are a simple design, a reduction ratio of 50 gives good quality and puts about 300 pages on a microfiche. A microfilm plotter, sometimes called an aperture card plotter, accepts

552-584: A matrix of microimages. All microfiche are read with their text parallel to the long side of the fiche . Frames may be landscape or portrait in orientation . Along the top of the fiche a title may be recorded for visual identification. The most commonly used format is a portrait image of about 10 × 14 mm. Office-size papers or magazine pages require a reduction of 24 or 25 in size. Microfiche are stored in open-top envelopes, which are put in drawers or boxes as file cards or fitted into pockets in purpose-made books. Ultrafiche (also "ultramicrofiche" )

621-452: A means of keeping compact records of bets taken. Betting shop customers would sometimes attempt to amend their betting slip receipt to attempt fraud, and so the microphotography camera (which also generally contained its own independent time-piece) found use as a definitive means of recording the exact details of each and every bet taken. The use of microphotography has now largely been replaced by digital 'bet capture' systems, which also allow

690-561: A method to microformat dissertations, and in 1934 the United States National Agriculture Library implemented the first microform print-on-demand service, which was quickly followed by a similar commercial concern, Science Service. In 1935, Kodak's Recordak division began filming and publishing The New York Times on reels of 35 millimeter microfilm, ushering in the era of newspaper preservation on film. This method of information storage received

759-426: A personal hobby and did not document his procedures. The idea that microphotography could be no more than a novelty was an opinion shared in the 1858 Dictionary of Photography , which called the process "somewhat trifling and childish". Microphotography was first suggested as a document preservation method in 1851 by the astronomer James Glaisher , and in 1853 by John Herschel , another astronomer. Both men attended

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828-412: A simple, inexpensive ($ 2.00 in 1950), monocular microfilm viewing device, known as the "Seidell viewer", that was sold during the 1940s and 1950s. A microfilm printer contains a xerographic copying process, like a photocopier . The image to be printed is projected with synchronised movement on to the drum. These devices offer either small image preview for the operator or full size image preview, when it

897-414: A single film may be inserted into a dark slide or the camera may be fitted with a roll film holder which after an exposure advances the film into a box and cuts the frame off the roll for processing as a single film. For engineering drawings, a freestanding open steel structure is often provided. A camera may be moved vertically on a track. Drawings are placed on a large table for filming, with centres under

966-406: A single stream of microimages along the film set so that lines of text are parallel to the sides of the film or 10,000 small documents, perhaps cheques or betting slips, with both sides of the originals set side by side on the film. Aperture cards are Hollerith cards into which a hole has been cut. A 35 mm microfilm chip is mounted in the hole inside of a clear plastic sleeve or secured over

1035-470: A step and repeat mechanism to advance the film after each exposure. The simpler versions use a dark slide loaded by the operator in a dark room; after exposure the film is individually processed, which may be by hand or using a dental X-ray processor. Cameras for high output are loaded with a roll of 105 mm film. The exposed film is developed as a roll; this is sometimes cut to individual fiche after processing or kept in roll form for duplication. Equipment

1104-689: A storage medium than earlier methods of film information storage, such as the Photoscope, the Film-O-Graph, the Fiske-O-Scope, and filmslides. The year 1938 also saw another major event in the history of microfilm when University Microfilms International (UMI) was established by Eugene Power . For the next half century, UMI would dominate the field, filming and distributing microfilm editions of current and past publications and academic dissertations. After another short-lived name change, UMI

1173-411: A stream that might be sent to a computer pen plotter. It produces corresponding frames of microfilm. These produce microfilm as 35 or 16 mm film or aperture cards. Computer Output Microfiche was used to distribute massive amounts of frequently changed data to institutions or companies which could not afford computer terminals but already used microfiche readers for a variety of reasons. In some cases

1242-606: A vast collection, Hickey lobbied for a library to manage and preserve all of these documents for use by the Senate. Despite various attempts to establish a library, it was not until February 11, 1870, that the Senate designated three rooms (S-331, S-332, and S-333) in the Library of Congress for the Senate Library. In 1871, George S. Wagner was appointed the first Senate Librarian. Wagner had the task of organizing Hickey's collection for better access and for preservation purposes (many of

1311-658: Is 22 people, including the Librarian and 13 other professionals. 38°53′34″N 77°00′25″W  /  38.8928°N 77.0069°W  / 38.8928; -77.0069 United States Senate Librarian Chief librarian of the United States Senate Library This article is part of a series on the United States Senate [REDACTED] Great Seal of

1380-482: Is an exceptionally compact version of a microfiche or microfilm, storing analog data at much higher densities. Ultrafiche can be created directly from computers using appropriate peripherals. They are typically used for storing data gathered from extremely data-intensive operations such as remote sensing. Microcards are an opaque, non-reversed format, sometimes known as microopaques. They were invented in 1948 by Fremont Rider and described in his book, The Scholar and

1449-402: Is available that accepts a data stream from a mainframe computer. This exposes film to produce images as if the stream had been sent to a line printer and the listing had been microfilmed. Because of the source one run may represent many thousands of pages. The process is known as computer output microfilm or computer output microfiche (COM). Within the equipment character images are made by

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1518-581: Is built into a box. In some versions this is for bench top use, other versions are portable. The operator maintains a stack of material to be filmed in a tray, the camera automatically takes one document after another for advancement through the machine. The camera lens sees the documents as they pass a slot. Film behind the lens advances exactly with the image. Special purpose flow cameras film both sides of documents, putting both images side by side on 16 mm film. These cameras are used to record cheques and betting slips. All microfiche cameras are planetary with

1587-411: Is called a reader printer. Microform printers can accept positive or negative films and positive or negative images on paper. New machines allow the user to scan a microform image and save it as a digital file. 105 × 148 mm flat film is used for microimages of very large engineering drawings. These may carry a title photographed or written along one edge. Typical reduction is about 20, representing

1656-423: Is in use. They may offer a choice of magnifications. They usually have motors to advance and rewind film. When coding blips are recorded on the film a reader is used that can read the blips to find any required image. Portable readers are plastic devices that fold for carrying; when open they project an image from microfiche on to a reflective screen. For example, with M. de Saint Rat , Atherton Seidell developed

1725-501: Is provided 16, 35 and 105 mm wide in lengths of 30 metres (100 ft) and longer, and is usually unperforated. Roll film is developed, fixed and washed by continuous processors. Sheet film is supplied in ISO A6 size. This is either processed by hand or using a dental X-ray processor. Camera film is supplied ready mounted in aperture cards. Aperture cards are developed, fixed and washed immediately after exposure by equipment fitted to

1794-1411: Is the chief librarian of the United States Senate Library . The Senate librarian reports to the secretary of the United States Senate . The current librarian is Meghan Dunn. [REDACTED] This list is incomplete ; you can help by adding missing items . ( August 2008 ) George S. Wagner , 1871—1875 George F. Dawson , 1875—1879 P. J. Pierce , 1879—1884 George M. Weston , 1884—1887 Alonzo W. Church , 1887—1901 James M. Baker , 1898—1901 ( acting librarian ) Cliff Warden , 1901—1904 ( acting librarian ) James M. Baker , 1904 ( acting librarian ) Edward C. Goodwin , 1904—1906 ( acting librarian ) Edward C. Goodwin , 1906—1921 Walter P. Scott , 1921—1923 Edward C. Goodwin , 1923—1930 James D. Preston , 1931—1935 Ruskin McArdle , 1935—1947 George W. Straubinger , 1947—1951 Richard D. Hupman , 1951—1953 Sterling Dean , 1953—1954 Richard D. Hupman , 1954 ( acting librarian ) Gus J. Miller , 1954—1955 Richard D. Hupman , 1955—1973 Roger K. Haley , 1973—1997 Greg Harness , 1997—2008 Mary E. Cornaby , 2008—2009 Leona I. Faust , 2009—2022 Meghan Dunn , 2022—present References [ edit ] ^ "U.S. Senate: About

1863-526: The Capitol for the Senate Library. The Senate decided to procure and install steel shelving to replace wooden shelving to fireproof their collection from future damage. Secretaries oversaw the early collection of the library which included printed bills and resolutions, committee reports and other Senate documents. William Hickey, Chief Clerk of the Senate (1855–1866), had been collecting 10 copies of every Senate document since 1824. Starting to accumulate

1932-484: The Government of National Defense surrendered, Dagron had delivered 115,000 messages to Paris by carrier pigeon. The chemist Charles-Louis Barreswil proposed the application of photographic methods with prints of a reduced size. The prints were on photographic paper and did not exceed 40 mm, to permit insertion in a goose-quill or thin metal tube, which protected against the elements. The pigeons each carried

2001-748: The Library of Congress microfilmed more than three million pages of books and manuscripts in the British Library ; in 1929 the Social Science Research Council and the American Council of Learned Societies joined to create a Joint Committee on Materials for Research, chaired for most of its existence by Robert C. Binkley , which looked closely at microform's potential to serve small print runs of academic or technical materials. In 1933, Charles C. Peters developed

2070-570: The 1851 Great Exhibition in London, where the exhibit on photography greatly influenced Glaisher. He called it "the most remarkable discovery of modern times", and argued in his official report for using microphotography to preserve documents. A pigeon post was in operation during the Siege of Paris (1870-1871). René Dagron photographed pages of newspapers in their entirety which he then converted into miniature photographs. He subsequently removed

2139-505: The 1920s, microfilm began to be used in a commercial setting. New York City banker George McCarthy was issued a patent in 1925 for his "Checkograph" machine, designed to make micrographic copies of cancelled checks for permanent storage by financial institutions. In 1928, the Eastman Kodak Company bought McCarthy's invention and began marketing check microfilming devices under its "Recordak" division. Between 1927 and 1935,

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2208-1939: The Capitol Cap. Police Board Cap. Guide Service Congr. Budget Office (CBO) Congr. Workplace Rights (OCWR) Library of Congress Gov. Publishing Office (GPO) Technology Assessment Offices Senate Curator Historical Library House Congr. Ethics Emergency Planning, Preparedness, and Operations Interparliamentary Affairs Law Revision Counsel Legislative Counsel Library Employees Senate Secretary Chaplain Curator Historian Librarian Pages Parliamentarian Sergeant at Arms and Doorkeeper House Chaplain Chief Administrative Officer Clerk Doorkeeper Floor Operations Floor Services Chief Historian Pages Board Parliamentarian Postmaster Reading Clerk Sergeant at Arms Library of Congress Congressional Research Service reports Copyright Office Register of Copyrights Law Library Poet Laureate THOMAS Adams Building Jefferson Building Madison Building Gov. Publishing Office Public Printer Congressional Pictorial Directory Congressional Record Official Congressional Directory U.S. Gov. Manual Serial Set Statutes at Large United States Code Capitol Building List of artwork at

2277-926: The Course of Empire Takes Its Way VP's Room VP Bust Collection Office buildings Senate Dirksen Hart Mountains and Clouds Russell House Building Commission office lottery Cannon Ford Longworth O'Neill Rayburn Other facilities Botanic Garden Health and Fitness Facility House Recording Studio Senate chamber Old Senate Chamber Old Supreme Court Chamber Power Plant Webster Page Residence Subway Related Capitol Hill United States Capitol cornerstone laying Retrieved from " https://en.wikipedia.org/w/index.php?title=United_States_Senate_Librarian&oldid=1159675750 " Categories : Lists of librarians Lists of office-holders in

2346-701: The Future of the Research Library . To create microform media, a planetary camera is mounted with the vertical axis above a copy that is stationary during exposure. High volume output is possible with a rotary camera which moves the copy smoothly through the camera to expose film which moves with the reduced image. Alternatively, it may be produced by computers, i.e. COM (computer output microfilm). Normally microfilming uses high resolution panchromatic monochrome stock. Positive color film giving good reproduction and high resolution can also be used. Roll film

2415-929: The Secretary of the Senate" . www.senate.gov . Retrieved 2023-05-11 . ^ "U.S. Senate Library -- United States Senate" . librarytechnology.org . Retrieved 2023-05-11 . ^ "THE 125TH ANNIVERSARY OF THE SENATE LIBRARY; Congressional Record Vol. 142, No. 130" . Congress.gov . Retrieved May 11, 2023 . v t e United States Congress House of Representatives Senate Joint session ( 117th  ←  118th  →  119th ) Lists of United States Congress Members and leaders Membership Members By length of service By shortness of service Youngest members Non-voting members Unseated members Senate Members seniority Dean Former Expelled or censured Classes Born outside

2484-839: The Signing of the Constitution of the United States Apotheosis of Democracy Progress of Civilization Pediment First Reading of the Emancipation Proclamation of President Lincoln Surrender of General Burgoyne Surrender of Lord Cornwallis George Washington and the Revolutionary War Door Revolutionary War Door Columbus Doors Washington at Princeton Westward

2553-1410: The U.S. Resigned Appointed Switched parties House Members seniority Dean Former Expelled, censured, and reprimanded Served a single term Lost re-election in a primary Switched parties Elected but did not serve New members 90th (1967) 91st (1969) 92nd (1971) 93rd (1973) 94th (1975) 95th (1977) 96th (1979) 97th (1981) 98th (1983) 99th (1985) 100th (1987) 101st (1989) 102nd (1991) 103rd (1993) 104th (1995) 105th (1997) 106th (1999) 107th (2001) 108th (2003) 109th (2005) 110th (2007) 111th (2009) 112th (2011) 113th (2013) 114th (2015) 115th (2017) 116th (2019) 117th (2021) 118th (2023) Leaders Senate President list President pro tempore list Leaders Democratic Caucus Chair Secretary Policy Committee Chair Republican Conference Chair Vice-Chair Policy Committee Chair House Speaker list Leaders Bipartisan Legal Advisory Group Democratic Caucus Republican Conference Districts List Apportionment Gerrymandering Groups Congressional caucus Caucuses of

2622-631: The United States Employees of the United States Senate Hidden categories: Articles with short description Short description matches Wikidata Incomplete lists from August 2008 Microform A microform is a scaled-down reproduction of a document, typically either photographic film or paper, made for the purposes of transmission, storage, reading, and printing. Microform images are commonly reduced to about 4% or 1 ⁄ 25 of

2691-559: The United States Capitol complex List of portraits in the United States House of Representatives collection (A-J) Brumidi Corridors Congressional Prayer Room Crypt Dome Statue of Freedom Rotunda Hall of Columns Statuary Hall Visitor Center The Apotheosis of Washington Statue of Freedom Declaration of Independence painting Scene at

2760-2010: The United States Congress Ethnic and racial African-American members Senate House Black Caucus Arab and Middle Eastern members Asian Pacific American members Asian Pacific American Caucus Hispanic and Latino members list Hispanic Caucus Hispanic Conference Jewish members Congressional Jewish Caucus Native American members Gender and sexual identity LGBT members Equality Caucus Women Senate House Issues Caucus current House Occupation Physicians Religion Buddhist members Hindu members Jewish members Mormon (LDS) members Muslim members Quaker members Sikh members Related By length of service historically Current members by wealth From multiple states Died in office 1790–1899 1900–1949 1950–1999 2000–present Killed or wounded in office Party switchers Slave owners Powers, privileges, procedure, committees, history, media Powers Article I Copyright Commerce (Dormant) Contempt of Congress Declaration of war Impeachment Inquiries Trial Naturalization "Necessary and Proper" Power of enforcement Taxing/spending Privileges Salaries Franking Immunity Procedure Act of Congress list Appropriation bill Bill Budget process Censure Closed sessions House Senate Cloture Concurrent resolution Continuing resolution Dear Colleague letter Discharge petition Enrolled bill Expulsion Joint resolution Joint session list Lame-duck session Magic minute Majority of

2829-669: The United States Senate History of the United States Senate Members Current members ( by seniority by class ) Former members Hill committees ( DSCC NRSC ) Women in the Senate United States Vice President ( list ) President pro tempore ( list ) Presiding officer Party leaders Party leadership of

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2898-1013: The United States Senate Democratic Caucus Republican Conference Politics and procedure Advice and consent Blue slip Closed session ( list ) Cloture Committees ( list ) Executive session Morning business Filibuster Journal Nuclear option Recess appointment Quorum Quorum call Salaries Saxbe fix Seal Holds Senatorial courtesy Standing Rules Traditions Unanimous consent Vice presidential tie-breaking votes Places United States Capitol Senate chamber Old Senate Chamber Senate Reception Room Senate office buildings ( Dirksen Hart Russell ) v t e The United States Senate librarian

2967-1168: The Whole Conference Discharge petition Hearings Markup Oversight List (Joint) List (House) List (Senate) Select and special Standing Subcommittees Items Gavels Mace of the House Seal of the Senate History House history memoirs speaker elections Senate history election disputes memoirs Continental Congress Federal Hall (1789–1790) Congress Hall (1790–1800) Old Brick Capitol (1815–1819) Biographical Directory Divided government Party divisions Media C-SPAN Congressional Quarterly The Hill Politico Roll Call Capitol Complex ( Capitol Hill ) Legislative offices Congressional staff Gov. Accountability Office (GAO) Comptroller General Architect of

3036-405: The aperture with adhesive tape. They are used for engineering drawings in all engineering disciplines. There are libraries of these containing over 3 million cards. Aperture cards may be stored in drawers or in freestanding rotary units. A microfiche is a sheet of flat film, 105 × 148 mm in size, the same size as the international standard for paper size ISO A6 . It carries

3105-608: The camera. Early cut sheet microforms and microfilms (to the 1930s) were printed on nitrate film , which poses high risks to their holding institutions, as nitrate film is chemically unstable and a fire hazard. From the late 1930s to the 1980s, microfilms were usually printed on a cellulose acetate base, which is prone to tears, vinegar syndrome , and redox blemishes. Vinegar syndrome is the result of chemical decay and produces "buckling and shrinking, embrittlement, and bubbling". Redox blemishes are yellow, orange or red spots 15–150 micrometres in diameter created by oxidative attacks on

3174-499: The card. This permits automated reproduction, as well as permitting mechanical card-sorting equipment to sort and select microfilm drawings. Aperture card mounted microfilm is roughly 3% of the size and space of conventional paper or vellum engineering drawings. Some military contracts around 1980 began to specify digital storage of engineering and maintenance data because the expenses were even lower than microfilm, but these programs are now finding it difficult to purchase new readers for

3243-440: The collection, Thomas Jefferson offered his private library at whatever price they were able to pay, installments welcome. Jefferson's 6,487 volumes formed the heart of the new Library of Congress collection. The second fire occurred in 1851 and destroyed all but 20,000 volumes in the Library of Congress collection. The damage to the Library of Congress collections prompted the Senate to preserve its records by designating space in

3312-431: The collodion film from the glass base and rolled it tightly into a cylindrical shape which he then inserted into miniature tubes that were transported fastened to the tail feathers of the pigeons. Upon receipt the microphotograph was reattached to a glass frame and was then projected by magic lantern on the wall. The message contained in the microfilm could then be transcribed or copied. By 28 January 1871, when Paris and

3381-525: The dispatches onto paper. Additionally, the US Victory Mail , and the British "Airgraph" system it was based on, were used for delivering mail between those at home and troops serving overseas during World War II . The systems worked by photographing large amounts of censored mail reduced to thumb-nail size onto reels of microfilm, which weighed much less than the originals would have. The film reels were shipped by priority air freight to and from

3450-567: The early 19th century. Many were signed by the author or previous owner. The Senate Library receives the United States Congressional Serial Set , which contains over 15,000 congressional reports and documents since 1817. The Library added a legislative status database in 1975. Calls for this service have peaked at 80,000 per year. Today, the library serves as many people in one day as it did in one month in 1964, nearly 60,000 inquiries per year, based primarily on

3519-409: The film, and are largely due to poor storage conditions. The simplest microfilm camera that is still in use is a rail mounted structure at the top of which is a bellows camera for 105 x 148 mm film. A frame or copy board holds the original drawing vertical. The camera has a horizontal axis which passes through the center of the copy. The structure may be moved horizontally on rails. In a darkroom

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3588-492: The growth in Senate staff from 2,000 in 1964 to more than 7,000 today. The Senate Library has a reading room , study carrels , computers, and a scanning and microform center. The Library's microfilm collection includes over one million microform and over 6,000 microfilm reels. Library tours and scheduled throughout the year and personalized tours can be made by request. The Library makes deliveries twice daily to offices with requested information. The authorized library staff

3657-431: The home fronts, sent to their prescribed destinations for enlarging at receiving stations near the recipients, and printed out on lightweight photo paper. These facsimiles of the letter-sheets were reproduced about one-quarter the original size and the miniature mails were then delivered to the addressee. Use of these microfilm systems saved significant volumes of cargo capacity needed for war supplies. An additional benefit

3726-414: The lens. Fixed lights illuminate the copy. These cameras are often over 4 metres (13 ft) high. These cameras accept roll film stock of 35 or 16 mm. For office documents a similar design may be used but bench standing. This is a smaller version of the camera described above. These are provided either with the choice of 16 or 35 mm film or accepting 16 mm film only. Non adjustable versions of

3795-811: The majority (Hastert Rule) Multiple referral House procedures Quorum call Reconciliation Rider Saxbe fix Sponsorship Suspension of the rules Unanimous consent Veto Line-item veto Pocket veto Senate-specific Advice and consent Blue slip (U.S. Senate) Classes Executive communication Executive session Filibuster Jefferson's Manual Senate Journal Morning business Nuclear option Presiding Officer Recess appointment Reconciliation Riddick's Senate Procedure Senate hold Senatorial courtesy Seniority Standing Rules Tie-breaking votes Traditions Treaty Clause Committees Chairman and ranking member Of

3864-413: The materials were in fragile condition). By 1890, the collection was exceeding 98,000 volumes and was outgrowing the space in the library. Many rare documents and manuscripts were in a basement storage under poor conditions. Some of the materials in this suffering storage place were signed by George Washington . In 1902, the library was appropriated funds to build steel storage shelves. The new storage space

3933-400: The office camera are provided. These have a rigid frame or an enveloping box that holds a camera at a fixed position over a copy board. If this is to work at more than one reduction ratio there are a choice of lenses. Some cameras expose a pattern of light, referred to as blips, to digitally identify each adjacent frame. This pattern is copied whenever the film is copied for searching. A camera

4002-745: The old formats. Microfilm first saw military use during the Franco-Prussian War of 1870–71. During the Siege of Paris , the only way for the provisional government in Tours to communicate with Paris was by pigeon post . As the pigeons could not carry paper dispatches, the Tours government turned to microfilm. Using a microphotography unit evacuated from Paris before the siege, clerks in Tours photographed paper dispatches and compressed them to microfilm, which were carried by homing pigeons into Paris and projected by magic lantern while clerks copied

4071-451: The original document size. For special purposes, greater optical reductions may be used. Three formats are common: microfilm (reels), microfiche (flat sheets), and aperture cards . Microcards, also known as "micro-opaques", a format no longer produced, were similar to microfiche, but printed on cardboard rather than photographic film. Equipment is available that accepts a data stream from a computer; this exposes film to produce images as if

4140-421: The quantities involved justified getting a microfiche reader just to read COM fiche. The first COM devices date back to around 1955 and were used in scientific programming as substitutes for paper-based plotters . Then during the 1960s, business applications sought to use COM. This was part of the effort to find alternatives to paper-based reports in dealing with the information explosion . By 1969, some of

4209-776: The sanction of the American Library Association at its annual meeting in 1936, when it officially endorsed microforms. In 1937 Herman H. Fussler of the University of Chicago set up an exhibition of microform at the World Congress of Universal Documentation . Harvard University Library was the first major institution to realize the potential of microfilm to preserve broadsheets printed on high-acid newsprint and it launched its "Foreign Newspaper Project" to preserve such ephemeral publications in 1938. Roll microfilm proved far more satisfactory as

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4278-563: The stream had been sent to a line printer and the listing had been microfilmed. The process is known as computer output microfilm or computer output microfiche (COM). Using the daguerreotype process, John Benjamin Dancer was one of the first to produce microphotographs , in 1839. He achieved a reduction ratio of 160:1. Dancer refined his reduction procedures with Frederick Scott Archer 's wet collodion process , developed in 1850–51, but he dismissed his decades-long work on microphotographs as

4347-459: Was also a space-saving measure. In his 1945 book, The Scholar and the Future of the Research Library , Fremont Rider calculated that research libraries were doubling in space every sixteen years. His suggested solution was microfilming, specifically with his invention, the microcard. Once items were put onto film, they could be removed from circulation and additional shelf space would be made available for rapidly expanding collections. The microcard

4416-906: Was housed in the Senate attic (S-410 and S-419). In 1999, the Senate Library moved from the Capitol to the Russell Senate Office Building. The library now resides in SR-B15. The Library serves present and former senators, member and committee staff, Senate leadership, and Senate officers. The mission of the Senate Library has changed over time, as a focus has changed from the collection and storage of Senate documents to providing legislative, historic, legal, business and general reference materials. The Senate Library aims to carry out its mission in an accurate, prompt, and nonpartisan manner. The Library's book collection comprises hundreds of thousands of volumes on history, geography, biography, politics and law and has material dating back to

4485-452: Was made a part of ProQuest Information and Learning in 2001. Systems that mount microfilm images in punched cards have been widely used for archival storage of engineering information. For example, when airlines demand archival engineering drawings to support purchased equipment (in case the vendor goes out of business, for example), they normally specify punch-card-mounted microfilm with an industry-standard indexing system punched into

4554-413: Was printed to microfiche during the 1970s and distributed to customers in this form. Additionally, microfiche was used to write out long casework for some proofs such as the four color theorem . The medium has numerous characteristics: Desktop readers are boxes with a translucent screen at the front on to which is projected an image from a microform. They have suitable fittings for whatever microform

4623-631: Was superseded by microfiche. By the 1960s, microfilming had become standard policy. In 1948, the Australian Joint Copying Project started; the intention to film records and archives from the United Kingdom relating to Australia and the Pacific. Over 10,000 reels were produced, making it one of the largest projects of its kind. Around the same time, Licensed Betting Offices in the UK began using microphotography as

4692-455: Was that the small, lightweight reels of microfilm were almost always transported by air, and as such were delivered much more quickly than any surface mail service could have managed. Libraries began using microfilm in the mid-20th century as a preservation strategy for deteriorating newspaper collections. Books and newspapers that were deemed in danger of decay could be preserved on film and thus access and use could be increased. Microfilming

4761-406: Was to create a World Center Library of Juridical, Social and Cultural Documentation, and he saw microfiche as a way to offer a stable and durable format that was inexpensive, easy to use, easy to reproduce, and extremely compact. In 1925, the team spoke of a massive library where each volume existed as master negatives and positives, and where items were printed on demand for interested patrons. In

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