"Map Shewing Routes of Thos. Wilson, Sons, and Cos. Steamers."

]> ms. 6 Rowland (Henry Augustus) 1848-1901 Papers 1793-1970 Ms. 6 Margaret N. Burri Special Collections, The Milton S. Eisenhower Library, The Johns Hopkins University

3400 N. Charles Street Baltimore, MD 21218 USA Phone: (410) 516-8323

Machine-readable finding aid encoded by Marius Stan Finding aid written in English Rowland (Henry Augustus) 1848-1901 Papers 1793-1970 Ms. 6 Special CollectionsThe Milton S. Eisenhower Library The Johns Hopkins University Contact Information Special Collections The Milton S. Eisenhower Library The Johns Hopkins University 3400 North Charles Street Baltimore, MD 21218 (410) 516-8323 Processed by: Margaret N. Burri Date completed: September 1988 Encoded by: Marius Stan

Descriptive Summary Ms. 6 Rowland (Henry Augustus) 1848-1901 Papers 1793-1970 Rowland, Henry Augustus, 1848-1901 Johns Hopkins University. Special Collections 50 document boxes, 2 flat boxes; 56 volumes (30 linear ft.) English The collection spans the years 1793 to 1970, but the bulk of the material is that created by Rowland and dates from 1868 to 1901. The papers consist of correspondence, diaries, research notebooks, lab notes and calculations, patents and agreements, lectures, writings, bills and receipts, reprints, and newspaper clippings. The collection is particularly strong in documenting Rowland's contributions to the history of technology. His student notebooks, writings and lab notes reveal much about the experimental processes of physics in the late nineteenth century.The notebook series (Series 4) covers both Rowland's days as a student at RPI and his years as a professor at Hopkins. The RPI notebooks (Boxes 20-22) are useful for the information they provide about physics and engineering training in the late nineteenth century. Of particular interest are Rowland's notes on lectures he attended in mechanics and astronomy, and his technical drawing notebooks.Three items in the writing series (Series 5) also illustrate Rowland's earliest work. They are "The Work Done on Unequal Masses by Equal Froces in Equal Times" (1868), "The Magnetic Electric Machine. Hints on the Improvement. September 1868," and his senior thesis, "Steam Engine with Variable Cut-off" (1870)Before beginning his appointment at Hopkins, Rowland, at Daniel Coit Gilman's suggestion, took an extended trip to Europe. His aim was to study both experimental and teaching methods in university physics departments. He visited Kings College, Cambridge; University College, London; University of Edinburgh; University Glasgow; College of France; Leipzig and Gratz. Rowland kept a notebook with his impressions (Box 22). This, along with his letters to Gilman (Ms. 1, Series 1) document the state of European science in the late nineteenth century.Rowland depended on his graduate students to help him in his research. Two of the notebooks from the Hopkins period contain lab data collected by graduate fellows. An 1882 notebook (Box 25) contains experimental data on diffraction gratings compiled by Charles Herschel Koyl; "Experiments upon Roentgen's X-Rays" contains results obtained by other students. The Johns Hopkins University series (Series 2) documents the codification of scientific research in the late nineteenth century. Rowland's reports on the work of the Physical Laboratory, lists of lab supplies and books purchased, and proposed floor plans indicate his desire to properly train a new generation of physicists. Additional information about Rowland's work in the University may be found in his letters to Daniel Coit Gilman (Ms. 1, Series 1). Rowland was interested in two significant scientific developments of the nineteenth century: the telegraph and hydroelectric power. He parlayed his expertise with electrical circuits into a business venture when he founded the Rowland Multiplex Printing Telegraph Company in 1898. Much of its success was due to the work of Joseph Penniman and Henry Wiegand. Former students of Rowland, the two set up and displayed the telegraph to the public. Letters from them to Rowland in the Rowland Multiplex Printing Telegraph Company series describe their efforts. The bulk of the correspondence covers public trials in Jersey City (1898-1899) and at the Paris Exhibition of 1900. Wiegand's own student and research notebooks are in Ms. 127.In 1892, the Cataract Construction Company of New York undertook a study to determine the best type of dynamo to use in the proposed hydroelectric power plant at Niagara Falls. They retained Henry Rowland as a consultant. Rowland reviewed proposals by competing companies: General Electric, Westinghouse, Atelier Oerlikon and Cie. l'Industrie; and evaluated the recommendations presented by another consulting engineer, George Forbes. When the company refused to pay Rowland's final bill, he sued. Correspondence, research notes, proposals and court transcripts form the Cataract Construction series.Although both the Cataract Construction Company and the Rowland Multiplex Telegraphic Company series contain most of the correspondence relevent to their contents, additional material may be found in the general correspondence series. For example, Louis de Goll's (president of the Printing Telegraph Company) letters to Rowland and correspondence from William Marbury, who represented Rowland in the Cataract case, are filed alphabetically in the correspondence series. De Goll's letters illustrate the legal issues and increasing bureaucratization of the patent process.The letters in the correspondence series comment mostly on scientific developments. John Brashear, the manufacturer in charge of the production of plates for Rowland's diffraction gratings, wrote extensively to Rowland. Colleagues and former students updated him on the status of their work.The correspondence series also contains Rowland's letters to his family. Begun when he was a student at Rensselaer Polytechnic (1874), and continuing through his tenure at Hopkins, they illustrate academic and family life in the late nineteenth century.Rowland kept informed of other scientific research through several collections of reprints. Among his papers were the first of three reprint collections. This was Rowland's personal reprint collection and is Series 8 of Rowland's papers. Rowland also owned a separate reprint collection which had been gathered by George G. Stokes of the Royal Society. These reprints were bound topically as were Rowland's and were cataloged in the Eisenhower general stacks. The largest number of the Stokes Collection volumes have the call number QC 3 S87 vol. 1-52. There are other volumes of Stokes reprints under other call numbers. The third collection of reprints formed the Henry A. Rowland Memorial Library. These too were bound topically and have various call numbers beginning QC 3 in the Eisenhower general stacks. There are 128 volumes on topics such as absorption, metallic reflection, electrical discharges in gases, ionization, magneto-optics, spectra of the elements, spectrum memoirs, physics of the stars, and the papers of William Wallace Campbell, A. Crova, Elster, Julius Geitel, Julius Fenyi, George Hale, W.N. Hartley, Angelo Secchi, Samuel Pierpont Langley, Eugen Cornelius Joseph von Lommel, Ch. Montigny, Henri Poincare, Charles Piazzi Smyth, George G. Stokes, Peter Guthrie Tait, Emilio Villari, H.C. Vogel, F.L.O. Wadsworth, Weidemann and Schmidt, R. Wolf, and R.W. Wood. Administrative Information Provenance

The papers were donated at different times: approximately 100 items by Mrs. Henry A. Rowland in 1943; the notebooks by Dr. John Whitehead in 1943; and the bulk of the manuscripts by Rowland's children, Harriet and Davidge Rowland, in about 1950. In July 1991, Mrs. Elizabeth Rowland Mayor, Henry Rowland's granddaughter, donated approximately 100 items including correspondence, awards, reprints, and a diary. The accession number for this material is 91-92.1.

Use Restrictions

Permission to publish material from this collection must be requested in writing from the Manuscripts Librarian, Milton S. Eisenhower Library, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Md. 21218.

Preferred Citation

Henry Augustus Rowland Papers Ms. 6 Special Collections Milton S. Eisenhower Library The Johns Hopkins University

Biographical Note

Henry Augustus Rowland was born in Honesdale, Pennsylvania on November 27, l848, the son of a Presbyterian clergyman. He graduated from Rensselaer Polytechnic Institute (Troy, New York) in 1870 as a civil engineer and was engaged during 1871 in the surveying of a railroad in western New York state. For a time he taught at Wooster University, but in 1872 he returned to Rensselaer as instructor in physics, becoming Assistant Professor in 1874. Rowland spent a year abroad studying with Helmholtz in Berlin, and examining physical laboratories in Europe. In 1876 he accepted the Chair of Physics, with charge of the laboratory, in the newly founded Johns Hopkins University. He held this post until his death in 1901. He married Henrietta Harrison in 1890. They had three children, Harriet, Henry and Davidge.

Rowland's original work was extensive and his findings drew on numerous researches made under his supervision at Johns Hopkins. Among his many notable achievements were his discoveries in the determination of the mechanical equivalent of heat, and his determination of the standard Ohm. He gained a world-wide reputation by his large diffraction gratings. These were exhibited at the National Academy of Sciences in 1883 and subsequently at various international exhibitions. He served as an engineering consultant for the harnessing of the water power of Niagara Falls to create electricity. The last years of his life were devoted to refining and marketing his version of the multiplex telegraph.

Numerous degrees and honors were conferred upon Rowland for his scientific work. He received the degree of Ph.D. from Johns Hopkins in 1880 and that of the LLD from Yale in 1895 and from Princeton in 1896. He became a Chevalier of the Legion of Honor in 1881 for service on the jury of the electrical exhibition at the Electrical Congress in Paris that year, and in 1896 he was made an Officer of the Legion of Honor.

Description of Series/Container List Series 1: Correspondence. Series 1: Correspondence, 1868-1901 15 boxes

There is some correspondence relating to honors and awards in the Personal Series Box 16. Correspondence regarding the Multiplex Telegraphic Company and the Cataract Construction Company are in Series 5 and 6.

There are also family letters in this series. Rowland wrote to his mother and sisters while at school and during his tenure at Hopkins. The letters span 1865-1901. Correspondence of Rowland's wife, Henrietta Harrison Rowland, and his daughter, Harriette Rowland, are included here. Most of the letters are incoming, with a few drafts of outgoing letters by Mrs. Rowland. There is a selection of Henry Rowland's letters written to Mrs. Rowland from the World's Columbian Exposition in 1893. Other of Mrs. Rowland's letters were received after Henry's death, and focus on various legal problems she encountered over royalties on Rowland's patents. There are also folders of invitations filed with Henrietta's correspondence.

Rowland's incoming letters, some with copies of his replies, have been arranged alphabetically by writer. A complete list of correspondents is in the container list.

Box Contents 1 Stenographer's notebook, October 23, 1899. 1 Abbe, Cleveland 1 Abbey, A. M. 1 Abbot, Henry L. 1 Abel, E. W. 1 Abney, W. de W. 1 Academie Royale des Sciences de Suede 1 Academy of Music 1 Achard, Ferdinand A. 1 Adams, A. Wellington 1 Adams, B. B. 1 Adee, Alvey A. 1 Agassiz, A. 1 Ahlerman, L. B. 1 Albany Institute 1 Alexander, J. P. 1 Alpha Delta Phi 1 American Association for the Advancement of Science 1 American Book Company 1 American Journal of Mathematics 1 American Institute of Electrical Engineers 1 American Meterological Society 1 American Patent Society 1 American Physical Society 1 Ames, Joseph S. 1 Anderson, Andrew 1 Anderson, F. A. 1 Anderson, G. G. 1 Anderson, W. E. 1 Anderson, William A. 1 Anthony, James S. 1 Aquilar, R. 1 Arbol, Emilio B. 1 Armstrong, E. A. 1 Ashworth, James 1 Associated News Bureau 1 Associated Literary Press 1 Athenaeum (Club), London 1 Atkinson, Edward 1 Austin, B. W. 1 Austin, H. L. 1 Auto-Ignitor 1 Ayras, Brown 1 Ayrton, W. E. 1 Bachmetjew, P. 1 Baird, S. F. 1 Baker, B. N. 1 Baker, E. B. 1 Baker, T. W. 1 Baldwin & Pennington 1 Baltimore Liederkrantz 1 Bannister, Lemuel 1 Barker, George F. 1 Barnes, Howard T. 1 Barns, Carl 1 Barnssen, Carl 1 Barrett, J. P. 1 Barrett, W. F. 1 Basquin, Olin H. 1 Bassnett, Thomas 1 Baudin Institute 1 Bayard, Thomas F. 1 Bazley, Thomas S. 1 Beach, F. C. 1 Becquerel, Henri 1 Bedell, Frederick 1 Beethoven Chorus Class 1 Beidler, H. M. (Patent) 1 Bell, Alexander Graham 1 Bell, Louis 1 Bell, Mabel Gardener 1 Bell, Robert 1 Bemrose, Joseph 1 Benjamin, E. B. 1 Benjamin, Marcus 1 Bennett, O. W. 1 Bentley, Edward M. 1 Berkerich, Karl 1 Berliner, E. 1 Bernard, A. W. 1 Bernstein, B. 1 Bertholet, Alfred 1 Bertoli, Adolpho 1 Besose, Adolfo E. 1 Bevier, Louis Jr. 2 Biddle, James G. 2 Bidwell, Benson 2 Bigelow, Frank H. 2 Biggs, C. H. W. 2 Bigio, Giovanni 2 Billings, John S. 2 Bischoffsheim, R. 2 Bissing, Gustav 2 Black, Charles N. 2 Black, A. S. C. 2 Black, B. and B. 2 Blaine, James G. 2 Blanchard, A. Bailly 2 Blaserna, Pietro 2 Bliss, William J. A. 2 Bliss, L. D. 2 Blum, Emile 2 Bolles, Frederick J. 2 Bonaparte, Charles J. 2 Bonney, J. G. 2 Boernstein, R. 2 Bourbouze 2 Bouty, E. S. 2 Bowen, Edward H. 2 Boys, C. V. 2 Brach, F. C. 2 Brackett, Byron B. 2 Bradford, Kyle & Co. 2 Bradford Machine Tool 2 Bradford Mill Company 2 Brandenburg, H. V. & Co. 2 Brandon and Sons 2 Bramwell, Frederick 2 Brashear, J. A. 2 Briggs, Lyman J. 2 British Association for Advancement of Science 2 Brooks, (David) 2 Brooks, William R. 2 Brown, Alexander 2 Brown and Eberhardt 2 Brown and Sharp Manufacturing Company 2 Brown, Boverie & Company 2 Brown Brothers & Company 2 Brown, G. W. 2 Brown, S. A. 2 Brown, W. J. 2 Brown, Shipley & Company 2 Brathaupt, W. H. 2 Bryan, Samuel M. 2 Buckingham, C. L. 2 Burandell, F. E. 2 Burckhardt, M. 2 Burmeister, Estelle 2 Burr, William H. 2 Butterworth, Benjamin 2 Byers, Tennie 2 Cadwallader, Bassett 2 Canadian Pacific Time Table 2 Capehart, A. S. 2 Capital City Club 2 Carbonell, C. 2 Carichoff, E. 2 Case, Isaac L. 2 Cattell, J. McK. 2 Caziasc, Louis V. 2 Canadian Patent Office 2 Capron, J. Rand 2 Carhart, Henry S. 2 Chamberlin, R. 2 Chandler, C. F. 2 Chandler, John R. 2 Chandler, S. C. 2 Chardonnet, Comte de 2 Charlesworth, Edward 2 Chase, F. A. 2 Chase, M. 2 Chessni, Alexander S. 2 Chester, Charles T. 2 Cheston, H. C. 2 Chicago World's Congress of Electricians 2 Childs, Arthur E. 2 Christiansen, C. 2 Civil Engineers Exploration Syndicate 2 Clark, A. C. & Sons 2 Clark, Frank P. 2 Clark University 2 Clarke, C. M. 2 Clarke, Eliot C. 2 Clarke, F. W. 2 Clay, C. J. & Sons 2 Clifton, R. B. 3 Cochery, Georges 3 Cochran, James 3 Coffin, J. H. C. 3 Coles, Stephen L. 3 Collerdon, Loris 3 Collier, Charles A. 3 Collier Charles B. 3 Collingwood, C. 3 Collins, W. H. 3 Colomba, G. 3 Comstock, C. B. 3 Corrington, W. 3 Conkey, W. B. G. 3 Conover, P. V. 3 Contemporary Club 3 Cook, J. Glenn 3 Cooper, William A. 3 Copeland, Ralph 3 Cornu, Alfred 3 Cowee, James F. 3 Cowles, Eugene H. 3 Cox, Jacob D. 3 Cox, John 3 Crafts, J. M. 3 Crapski, Siegfried 3 Crauford 3 Crew, Henry 3 Crocker, Curtis and Wheeler 3 Crocker Wheeler Company 3 Crockett, C. W. 3 Cronin, John S. 3 Crosby, O. J. 3 Cross, Charles R. 3 Cuenod, J. 3 Currie, Stanley C. 3 Daft, Leo 3 Damiens 3 Dana, Charles A. 3 Dana, E. S. 3 Dana, James D. 3 Dana, Paul 3 Dana & Stillman 3 Danchell, Frederick K. 3 Daniel, John 3 Darlington, Frederick 3 Darmstaedter, L. 3 Darwin, L. H. 3 Davies, John E. 3 Davis, George R. 3 Davis, Harry P. 3 Davis, John 3 Davis, Turner & Company 3 Dawson, G. William 3 Day, W. S. 3 Deering, W. H. 3 De Ferranti, Sebastian Z. 3 DeGoll, Louis 3 Delman, Marcel 3 Dennis, L. M. 3 Dequi, S. M. 3 Derby, George 3 Deslandres, H. 3 Dewar, James 3 Dexter, Franklin B. 3 Dickerson, Edward N. 3 Dickson, A. W. 3 Diets Boutique 3 Dimon & Dixon 3 Dirkinbine, James 3 Dodd, Meade & Company 3 Dodge, Richard E. 3 Dorn, Friedrich Ernst 3 Dorsey, N. Ernst 3 Dolivo, M. von 3 Dobrowolsky, M. 3 Draper, Anna 3 Draper, Henry 3 Drew, Samuel 3 Drown, J. M. 3 Drowne, Charles 3 Dudley, P. H. 3 Duell, C. H. 3 Duncan, Louis 3 Duncanbe, Cecil 3 Duner, N. C. 3 Duvall, A. Leslie 3 Duvelius, A. L. 3 Dyer, Richard N. 4 Ebert, H. 4 Eckert, Thomas T. 4 Eder, Josef M. 4 Edison, Thomas A. (Letters and Patents) 4 Egoroff, N. 4 Eichelberger, H. L. 4 Eichhorn, Charles F. 4 Eimer and Amend 4 Elder, Robert W. 4 Electrical Standards Committee 4 Electrical Trades Directory 4 "Electrical World" 4 Eliot, W. G. 4 Elkridge Fox Hunting Club 4 Elliott Brothers 4 Ellis, Frederick W. 4 Elphinstone, G. B. 4 Emery, E. 4 Empire City Electric Company 4 Engle, Horace M. 4 Ettinghousen, Albert 4 Everett, T. D. 4 Ewing, J. A. 4 Exner, F. 4 Faraday, Michael 4 Fara, Count 4 Farrand, S. A. 4 Fauque de Ionquieres 4 Ferry, Erwin S. 4 Fessender, Reginald A. 4 Fewsmith, J. 4 Field, Stephen D. 4 Fine, H. B. 4 Finley, John P. 4 Finney, Joseph K. 4 Fisher, D. K. 4 Fisher, S. T. 4 Fisher, William A. 4 Fitzgerald, George F. 4 Fleischer, Richard 4 Flower, W. H. 4 Ford, S. W. 4 Forman, Allan 4 Forsyth, John 4 Foster, G. Carey 4 Foster, I. S. 4 Foster, M. E. 4 Fowler, Frank R. 4 Fox, William L. 4 Francis, William Jr. 4 Franco, Eugenio de Lacerda 4 Freeman, H. H. 4 Frelinghuysen, Frederick T. 4 French, John C. 4 Fromme, Carl F. F. 4 Frost, Francis R. 4 Frothingham, Arthur L. 4 Fuller, Arthur G. 4 Fulton, R. B. 4 Gage, L. T. 4 Gardiner, Caroline 4 Gardner, H. 4 Garnett, William 4 Garrett, Allan V. 4 Garrett, Mary E. 4 Gauss & Weber 4 Gawtry, H. W. 4 Geddes, Patrick 4 Gibbs, J.W. 4 Gibbs, Walcott 4 Giddings, Franklin H. 4 Gilliams Press Syndicate 4 Gill, John of R. 4 Glover, Charles 4 Gminder, Jacob 6 Iles, M. W. 6 Institut de France 6 International Electric Congress 6 Instituto Fisico 6 Italian General Exhibition, 1898 6 Jackson, Andrew 6 Jackson, Charles L. 6 Jacobson, John 6 Jacques, William W. 6 Jenkin, Fleming 6 Jencks, Francis 6 Jewell, Lewis E. 6 Johnson, Edward H. 6 Johnson, Reverdy 6 Johnson, S. W. 6 Johnson, W. C. 6 Jones, F. W. 6 Jones, James P. 6 Jones, Levin T. 6 Joule, James P. 6 Junar, Charles 6 Justice, Philip M. 6 Keyser, Heinrich 6 Kahle, K. 6 Kaiserlichen Patentamtes 6 Kampfe, Richard 6 Kann, L. 6 Kedzie, J. H. 6 Keeler, J. F. 6 Keep, W. T. 6 Keim, E. T. 6 Kellogg, Milo T. 6 Kelvin, William Thompson 6 Kennedy, Rankin 6 Kennelly, A. E. 6 Kent, Norton A. 6 Kieckhoefer, H. T. 6 Kikuechi, D. 6 Kilbourn, G. C. 6 Kimball, Arthur L. 6 Kinkead, George B. 6 Kirker, Harry L. 6 Kite, Henry F. 6 Klemencic, T. 6 Knauer, E. 6 Knight, Walter H. 6 Knolbaum, F. 6 Knott, C. G. 6 Knowles, Edward R. 6 Kohlrausch, Friedrich 6 Koenig, Rudolph 6 Kontz, A. L. 6 Koyl, C. Herschel 6 Kunz, George F. 6 Lamme, Benjamin G. 6 Landretti, Oliver H. 6 Langley, S. P. 6 Lange, Philip 6 Latham, L. H. 6 Lathood Company 6 Lay, H. A. Jr. 6 Lebon, M. E. 6 Lee, Columbus O'Donnell 6 Lee, Henry 6 Leeds, Morris E. 6 Leidy, Joseph 6 Lettsom, W. G. 6 Leurstrom, J. 6 de Lepinay, J. M. 6 Lewis, J. R. 7 Lindemann, A. F. 7 Lintner, George A. 7 Lippincott, J. B. & Company 7 Litton, A. 7 Livingston, Henry Co. 7 Lockyer, J. Norman 7 Lodge, Oliver J. 7 Lohse, O. 7 Longsman, Green, & Company 7 Loumis E. H. 7 Lord, H. C. 7 Lord, Willis 7 Love, James L. 7 Love, John C. 7 Lummer, O. 7 Lungren, C. M. 7 Lunt, Alexander D. 7 Lurz, John & Brothers 7 Luxton, E. Denning 7 Lyons, Joseph 7 Macallum, A. B. 7 Mach, Ludwig 7 Machado, Jose A. 7 Machen, Arthur B. 7 MacLeod, F. N. 7 Mackenzie, A. S. 7 Maclure, Frank 7 MacMillan & Company 7 Macpherson, P. T. 7 Mali, Charles 7 Marburg, Theodore 7 Marbury, William L. 7 Marey, E. F. 7 Marks, William D. 7 Marquis, A. N. & Co. 7 Marsh, O. C. 7 Marshall, Henry R. 7 Marshall, Martin 7 Martin, Henry Newell 7 Martin, T. C. 7 Mascart, E. F. N. 7 Mashoff, J. 7 Masser, W. H. 7 Matthews, Samuel 7 Mayer and Mueller 7 Maxwell, James Clerk 7 Mayer, Alfred M. 7 Mayer, Louis H. 7 McCarty, Richard J. 7 McClure, S. S. 7 McConnell, James C. 7 McCormick, G. A. 7 McCulloch, R. S. 7 McGregor, John 7 McJenkin, Paul 7 McKay, John S. 7 McKay, T. C. 7 McKeen, Frank 7 McLaughlin, James F. 7 McMillan, Charles 7 McMillan, W. G. 7 Mee, Robert 7 Megear, Alter 7 Meigs, M. C. 7 Mendenhall, T. C. 7 Mengarini, B. 7 Merritt, Ernest 7 Meyer, B. 7 Meyer, O. E. 7 Meyersteins 7 Meysenburg 7 Michaelis, O. F. 7 Michelson, Albert A. 7 Michie, Peter S. 7 Middleton, Hugh C. 7 Miller, B. J. 7 Miller, Fred J. 7 Miller, W. D. 7 Milligan and Wheeler 7 Millis, John 7 Mills, E. W. 7 Mills, J. P. 7 Mills, S. M. 7 Mills, William W. 7 Mitchell, S. Weir 7 Mitsukuri, K. 7 Mohn, Henri E. 7 Moore, Clara Bloomfield 7 Moore, J. B. 7 More, Louis T. 7 Morgan, Robert C. 7 Morse, Edward S. 7 Morton, George N. 7 Morton, Henry 7 Morton, Reed & Company 7 Morton, W. H. 7 Moss, Frank 7 Muguai, A. 7 Muirhead, Alex 7 Mulligan, P. F. 7 Munker, George 7 Murray, D. 7 Murray, N. 8 National Academy of Sciences 8 National Brotherhood of Electrical Workers 8 National Conference of Electricians 8 National Standardizing Bureau 8 Neeper, Alexander M. 8 Nelson, Knute 8 Newcomb, Anita R. 8 Newcomb, Simon 8 Nichols, Edward 8 Nichols, O. F. 8 Nightingale, Craig E. 8 Nims, H. B. & Company 8 Nipher, Francis E. 8 Nixon, Henry B. 8 Nobel Prize Foundation 8 Northrup, Edwin F. 8 Northwest Businessmen and Taxpayers Association 8 Novack, Vladimir 8 Nunn, L. L. 8 Nuttall, George H. F. 8 O'Connor, W. P. 8 Old, George H. 8 Oliver, Charles K. 8 Olney, Richard 8 Orndorff, W. R. 8 O'Reilly, M. F. 8 Osler, William 8 Osmond, J. Thornton 8 Paine, Henry M. 8 Palmer, Henry J. 8 Paret T. Dunkin 8 Park, Harvey S. 8 Parker, Charles J. 8 Parks, C. Wellman 8 Parssens, H. B. 8 Parsons, A. S. 8 Paschen, Frederick 8 Pattison, Hugh L. 8 Paul and Kampfe 8 Peabody Institute 8 Peirce, C. S. 8 Penniman, George Dobbin 8 Pepper, William 8 Perkins, Charles A. 8 Perin, Nelson 8 Pernet, T. 8 Perreaux, R. 8 Perrine, C. D. 8 Perrine, Frederick A. C. 8 Perrow, George L. 8 Perry, John 8 Perry, Nelson W. 8 Petty, J. T. 8 Pfannkuche, Gustav 8 Philadelphia, City of 8 Phillips, Eugene F. 8 Physical Society of London 8 Pi Eta Scientific Society 8 Pickering, Edward C. 8 Pickering, James E. 8 Piedmond Driving Club 8 Pillsbury, J. H. 8 Pinnells, C. E. 8 Pitman, Charles E. 8 Pitone, R. F. 8 Pittsbury Writing Machine 8 Pneumatic Power Transmission 8 Poiner, P. F. 8 Pope, Ralph W. 8 Porter, George F. 8 Potter, Joseph B. 8 Powell, J. W. 8 Powless, William H. 8 Pratt and Whitney 8 Preece, W. H. 8 Prentiss, William A. 8 Price, Charles W. 8 Price, McCormick Company 8 Princeton Sesquicentennial Celebration 8 Pritchett, Henry S. 8 Pupin, M. A. 8 Pyke, Lazarus S. M. 9 Queens and Company 9 Randle, E. H. 9 Randolph, J. H. 9 Raps, A. 9 Rankine, William B. 9 Rayleigh, John William Strutt 9 Reber, Samuel 9 Redfern, G. F. and Co. 9 Redfield, Robert 9 Rees, J. K. 9 Reese, Herbert M. 9 Reinold, A. W. 9 Remsen, Ira 9 Rennselaer Polytechnic Institute 9 Republique Francaise 9 Rice, Charles 9 Richard, Oscar L. 9 Richards, Francis H. 9 Richardson, Frederick A. 9 Riecke, Edward 9 Riggs, Lawrason 9 Rising, W. B. 9 Ritchie, E. S. and Sons 9 Roberts, T. N. 9 Roberts, W. C. 9 Robinson, Mrs. John Moncure 9 Rockwell, George T. 9 Rogers, Howard J. 9 Rogers, William A. 9 Roiti, Antonio 9 Rohrbeck, W. J. and Company 9 Roller, Frank W. 9 Rollins, W. 9 Romeike, Henry 9 Rood, Ogden N. 9 Rosa, E. B. 9 Roscoe, Henry E. 9 Rose, R. H. and Sons 9 Rosenberg, Emil 9 Royal Astronomical Society 9 Royal Society 9 Royce, William A. 9 Rudd, Charles H. 9 Rudge, W. A. 9 Ruhnkorff 9 Runge, C. 9 Russell, Charles P. 9 Russell, H. C. 9 Rydberg, J. R. 9 Ryder, Charles 9 Sala 9 Salenne, J. 9 Samuel, Herman 9 Scharffetter, Henry 9 Scheel, Karl 9 Schenck, Charles Carroll 9 Schiaffino, Prospero 9 Schickert, Hugo 9 Schmid, Albert 9 Schmid and Almme 9 Schmidt and Haensch 9 Schneider, Theodore C. 9 Schumann, V. 9 Schuster, Arthur 9 Scott 9 Scott, Charles F. 9 Scott-Siddons 9 Scribner, Henry . 9 Scudder, Paul H. 9 See, T. J. J. 9 Seymour, John S. 9 Shapleigh, Waldron 9 Sharrer, W. O. 9 Shea, Daniel W. 9 Sherman, O. T. 9 Sherman, William F. 9 Shingleton, W. 9 Short, Sidney H. 9 Sellers, Coleman 10 Siemans, Ernest Werner 10 Silliman, J. M. 10 Siloff, P. 10 Simon, Hermann T. 10 Simonton, T. D. 10 Singer and Berens 10 Skinner, E. V. 10 Smith, C. Michie 10 Smith, D. W. 10 Smith, E. G. 10 Smith, F. C. 10 Smith, J. F. W. 10 Smith, J. Lawrence 10 Smith, Kirby F. 10 Smith, T. A. 10 Smith, W. O. 10 Smith, W. R. 10 Smyth, C. Piazzi 10 Sneider, C. E. 10 Snyder, Charles P. 10 Snyder, M. B. 10 Societe Francaise de Physique 10 Souysmith, Charles 10 Spear, Ellis 10 Spence, W. W. 10 Stamm, Otto 10 Stanford, Leland 10 Stanwood, Edward 10 Starr, A. A. 10 Spee, l'abbe 10 Sprague, Frank J. 10 Squier, George 10 Stanley, William 10 Steele, A. B. 10 Stetson, Francis Lynde 10 Steuart, Arthur 10 Stevens, James S. 10 Stevens, W. LeConte 10 Stickney, Austin 10 Stillwell, L. B. 10 Stocksdale, Arthur L. 10 Stoddard, O. N. 10 Stoletow, A. 10 Stoney, G. Johnstone 10 Stodder, J. C. 10 Stranco, Paolo 10 Strange, D. P. 10 Stratton, S. W. 10 Struve, Otto 10 Stuart, James 10 Students' Trade Bureau 10 Suess, Werner 10 Sumpner, W. E. 10 Swann, Thomas 10 Swann, William 10 Swift, James A. 10 Sydow 10 Sylvester, John 10 Taltarall, J. B. 10 Tammer, G. H. 10 Taylor, Henry L. 10 Taylor, Jonathan K. 10 Teague, Francis 10 Tear, M. E. 10 Terry, Charles A. 10 Tesla, Nikola 10 Thatcher, John Boyd 10 Thalen, Robert 11 Thomas, William M. 11 Thompson, S. P. 11 Thompson, Sylvanus P. 11 Thompson, Sir William 11 Thomson, Elihu 11 Thomson, J. M. 11 Thomson, J. J. 11 Thomson, James M. 11 Tichner, G. C. 11 Tinsley, George W. 11 Tissot, Eduard L. 11 Titsworth, A. A. 11 Tomlinson, John C. 11 Tompkins, D. H. 11 Townsend, Henry C. 11 Tregoning, John 11 Trouvelet, E. L. 11 Trowbridge, Augustus 11 Trowbridge, John 11 Troy Scientific Association 11 Tucker, George 11 Turrettini, J. 11 Tweed, W. M. (Pamphlet) 11 Tyler, Edmund L. 11 Tyndall Lectures 11 Tyson, Jesse 11 United States Commission to the Paris Exhibition of 1900 11 United States Department of Agriculture 11 United States Electrical Commission 11 United States Electrical Conference, 1884 11 United States Money Order 11 University Club (Washington, D. C.) 11 University of Cambridge Jubilee, 1899 11 Upham, Warren 11 Valiant, Stacy 11 Van DePoele, Charles J. 11 Van der Weyde, Peter H. 11 Van Name, George 11 Van Nius, C. S. 11 Van Nostrand, D. 11 Vermilye, W. G. 11 Vernon, Henry 11 de Veuve, Prentiss 11 Vigerean, A. 11 Villard, H. 11 Vogel, H. W. 11 Voss, K. 11 Waddell, J. A. L. 11 Wadsworth, M. E. 11 Wagner, Mary S. 11 Wahl, William M. 11 Waidner, Charles W. 11 Walcott, Charles D. 11 Wale, George and Company 11 Walker Company 11 Walter, Hugo 11 Walter, Duvelius and Merrill 11 Warburg, E. 11 Warren, S. Edward 11 Watson, W. and Sons 11 Watts, W. Marshall 11 Wead, Charles 11 Weaver, W. D. 11 West, Andrew F. 11 West, J. D. and Company 11 Westinghouse, George Jr. 11 Westinghouse and Scott 11 Weston, Edward 11 Wetzler, Joseph 11 Wheeler, A. W. 11 Wheeler, William B. 11 Whipple, G. M. 11 White, James 11 White, James T. 11 White, Stanford 11 White, Theodore G. 11 White, W. F. 11 Whitehead, John B. Jr. 11 Whitehead, J. B. 12 Whitman and Wilkinson 12 Wickes, Edward A. 12 Wiedemann, G. 12 Wilkinson, Ernest 12 Wilkinson & Fisher 12 Willyoung, Elmer G. 12 Wilmerding, G. L. 12 Wilson, C. E. 12 Wilson, Stephen J. 12 Winand & Bilberg 12 Winston, Charles H. 12 Winterhalter, A. G. 12 Wirth and Company 12 Withers, James 12 Withers and Delvin 12 Wolf, Max 12 Wolff, Frank 12 Woodward, Benjamin 12 Wooster University 12 World Columbian Exposition 12 Worthington, Thomas K. 12 Wright, Arthur W. 12 Wyman, Morrill 12 Yale College 12 Youmans, W. J. 12 Young, C. A. 12 Young, G. W. 12 Zahm, A. F. 12 Zeeman, P. 12 Zehnder, Ludwig 12 Zuener 12 Ziegler Electric Company 12 Zipernowsky and Deri 12 Zuthin 13 Rowland, Anna (sister), 1865-1892 5 folders.

Family Correspondence

13 Rowland, Cornelia (sister), 1865

Family Correspondence

13 Rowland, George, 1870

Family Correspondence

13 Rowland, Harriet (mother), 1865-1891 7 folders.

Family Correspondence

13 Rowland, Jennie (sister), 1865-1876 2 folders.

Family Correspondence

13 Rowland, Mary (sister), 1871-1905 2 folders.

Family Correspondence

13 Rowland, T. M.,

Family Correspondence

13 Rowland, Henry to John Forsythe (uncle), 1865, 1871

Family Correspondence

13 Rowland, Henry to "Family", 1871

Family Correspondence

Series 2: Johns Hopkins University. Series 2: Johns Hopkins University, 1876-1901 .5 box

This series contains material related to Rowland's activities at The Johns Hopkins University. The main focus is on the Physics Laboratory--reports, floor plans and supply lists--and Rowland's diffraction gratings. Related material about the manufacture of the gratings may be found in the correspondence series filed with the Daniel Coit Gilman, John Brashear, and Frederick Paschen letters. The JHU material also contains lists of the books in Rowland's library, and a paper by a student, Park Morrill.

The items are arranged alphabetically by topic.

Box Contents 15 Books in Rowland's Library, 2 folders 15 Exam questions 15 Floor plans of Physical Laboratory ?, 2 folders 15 Lab supplies, 3 folders 15 Physics Department Reports, 1876-1892 5 folders 15 Printed material 15 "Receipts and Expenses of Gratings". From November 1888-January 31,1901 15 Rowland's Photographic Maps--Order list 15 Student paper: Morrill, Park, "Absolute Index of Refraction of Dry Air." Series 3: Personal. Series 3: Personal, 1876-1970 4.5 boxes

This series contains material about Rowland. Included are papers about his honors and awards, photographs, visiting cards, bills, printed material and newspaper clippings, and a Ph.D. thesis about Rowland completed in 1970.

There are two items filed in the oversize map case: a map of routes of the Thomas Wilson Sons and Company steamers (1887); and a copy of the University's commemoration of Rowland.

Box Contents 15 Biographical material, 2 folders 15 Condolences 15 Certificates of honors and awards 15 King of Italy honors Rowland, April 19, 1904 15 Will of Henry A. Rowland 15 Correspondence re: honors, awards 15 Correspondence re: honorary Ph.D 15 Notes: List of Memberships 15 Note to "Captain of the Mt. Desert" 15 Photographs, 3 folders 15 Negative, Parsonage of Grandfather Rowland 16 Printed material (includes book catalogs and material on photography) 1871-1967 10 folders 16 Reprints: The Rumford Fund, Memoir, Joseph S. Ames, Italian Telegraph System, Dr. Howard Atwood Kelly. 17 Miller, John David. "H. A. Rowland and His Electromagnetic Researches." Ph.D. Oregon State University, 1970 17 Life Diary, with Rowland's entries (Photocopied) 1845-1919 18 Receipts and bills, 2 folders 18 Visiting Cards 18 Newspaper clippings. 1882-1954 9 folders 19 Scrapbook--newspaper clippings, 1882-1903 19 Medals awarded to Henry A. Rowland Oversize case "Map Shewing Routes of Thos. Wilson, Sons, and Cos. Steamers." 1887 Oversize case "In commemoration of Professor Rowland," 1901. Series 4: Notebooks and Lab Notes. Series 4: Notebooks and Lab Notes, 1868-1900 19 boxes

This series contains Rowland's student notebooks, notebooks he kept on experiments, and loose pages of notes, writings, and calculations on a wide variety of topics.

The notebooks are arranged chronologically (boxes 20 to 27); the lab notes alphabetically (boxes 28 to 38). The container list gives the topics.

Box Contents 20 [Notes on research articles]

Rensselaer Polytechnic Institute--RPI

20 [Table of elevations in Newark, New Jersey]

RPI

20 [Notebook on Integrals]

RPI

20 "Lectures on Mechanics by Prof. Drowning"

RPI

20 [Theory of Light]

RPI

20 [Chemistry, acoustics; problem sets on chemistry & acoustics]

RPI

20 [Mathematical Tables]

RPI

20 [Data on the chemical elements; physics notes on electricity and optics; names and addresses; chemistry notes] 1862-1878

RPI

20 "Projection Drawing" 1866-1867

RPI

20 "Note or Receipt Book" 1867

RPI

20 [List of expenses; some addresses and experiments] 1867

RPI

20 [Physical properties and conversion tables; magnets, photography, electricity, physics] 1868

RPI

20 "Notebook for advancement in Knowledge, etc. No. II. Unrevised Edition. Private" 1868

RPI

20 "Syllabus of Lectures Supplementary to the Course in Adjustment of Engineering Field Instruments." 1868

RPI

21 "Practical Astronomy by Prof. Dascom Greene." 1869

RPI

21 "Problems in Physics" 1869

RPI

21 "Perspective and Machine Drawing" 1869

RPI

21 "Shades and Shadows" 1870

RPI

21 "Spherical Astronomy", "Time", "Meridian Lines", "Latitude", "Longitude", "The Method of Least Squares" c. 1870-1871

RPI

21 "Distribution of Magnetism" October 1870-January 16, 1875

RPI

21 [Calculations and notes on physics problems; on verso of last pages, narrative about man and electricity] 1870

RPI

21 "Index Rerum" [Rowland listed books and articles he read by topic; a few mss. notes on physics are in the back] 1871

RPI

22 "Electricity" 1872-1876

Rensselaer Polytechnic Institute and Johns Hopkins University--RPI and JHU

22 [Physics problems; on inside cover, "M. M. Seymour, Troy, NY"] 1873

RPI and JHU

22 "Examples in Physics" and [Integrals], (on back cover, "James P. Whiton, RPI, 1874") 1874

RPI and JHU

22 "February-March. Galvanometer Calibrations" 1875

RPI and JHU

22 [German language exercises] c. 1875

RPI and JHU

22 [European tour]; (Includes impressions of labs at University College, London (Dr. Foster); King’s College, Cambridge (Dr. Adams); Edinburgh, Oxford, Glasgow, Leipzig, College of France and Gratz.) 1875-1876 2 notebooks

RPI and JHU

22 "Electric Distribution on Two Equal and Parallel Circular Plates" 1876

RPI and JHU

22 [Fragments of Notes] 1876+ 1 folder

RPI and JHU

22 [Electricity and Magnetic Induction} 1876+

RPI and JHU

22 "Empirical Formulae and Constants" 1876+

RPI and JHU

22 [Lab calculations] 1876+

RPI and JHU

22 [List of papers Rowland sent to fellow scientists] 1876+

RPI and JHU

23 [Vector functions] 1876+

Johns Hopkins University--JHU

23 [Thermodynamics and Thermophysics] 1876+

JHU

23 [Thermodynamics] 1876+

JHU

23 [Lecture notes on physics] 1876+

JHU

24 "Notes on Electric Distribution" 1876+

JHU

24 [Heat] 1876-1879

JHU

24 [Weights and balances] 1877

JHU

24 "Thermodynamics" 1877

JHU

24 [Various subjects] 1877-1878

JHU

24 [Lab data] 1878

JHU

25 Rowland's note in Thos. A. Edison’s notebook [?]

JHU

25 "Ratio of Elec. Units" 1878-1880

JHU

25 "Paris. Sept. 1881" [Magnetism] Sept. 1881

JHU

25 [Electrical Units and Standards] 1881

JHU

25 [Emulsions] 1882-1883

JHU

25 [Experimental data on diffraction gratings by C. H. Koyl] 1882

JHU

25 [Mathematical tables; series expansions] 1883-1892

JHU

25 [Photography] 1883, 1887-1890

JHU

25 [Standards] 1884

JHU

26 [Lecture Notes on Electricity and Magnetism] 1884-1885

JHU

26 "Burton's Notebook for Photographers" 1885

JHU

26 "Experiments in Electricity" (most pages blank; contains citations of experimental literature. 1885

JHU

26 "Lecture notes on light" (contains mss. draft of article by W. J. Raymond on "Reflection of Polarised Light," 1893) 1886

JHU

26 "The Amateur Photographers' Systematic Exposure Book" 1887

JHU

27 "Bessel’s Functions" 1888

JHU

27 "Thermoelectric Properties of Crystals" 1896

JHU

27 "Experiments upon Roentgen's X-Rays" 1896

JHU

28 [Absolute Value of the Ohm] 28 [Blueprints] 28 [Accoustics] 28 "Attraction of Magnets" 28 [Barometers] 28 [Calculations], 4 folders 28 [Charges and Potential Spheres] 28 [Conductors], 4 folders 28 [Conductors and Plane Waves] 28 [Currents] 28 "Cylinders in Electric Fields" 29 "D'Arsonval Galvanometers," 2 folders 29 [Data], 4 folders 29 [Diffraction Gratings], 7 folders 29 "Discontinuous Fluid Motion", 2 folders 30 "Distribution of Electricity" 30 [Drawings of Apparatus] 30 [Electric Potential], 5 folders 30 [Electric Potential and Magnetism], 3 folders. 30 [Electric Potential, Currents and Conductors] 30 [Electrical Bridge Circuits] 31 "Electrodynamics," 1874 31 [Electromagnetic Induction] 31 [Electromagnetic Theory], 3 folders 31 [Electromagnetic Theory and Optics], 8 folders 32 [Electromagnetic Theory and Optics], 2 folders 32 [Electromagnetism], 2 folders 32 [Electromagnetic Waves], 2 folders 32 "Electrostatic Energy, Magnetism, Conductors and Optics" [notes and calculations], 5 folders 33 [Experiments in Magnetism], 1897-1899 33 [Fluid Motion and Equilibrium] 33 [The Galvanometer] 33 [Graphs and Charts] 33 "Horizontal Intensity of Earth's Magnetism" 33 "Hot Wire" 33 [Induction Diagrams] 33 Jewell, L. E. "Calculations by L. E. Jewell, Oct. & Nov. 1886" 33 "Koyle" 33 [Lists of Lab Equipment] 33 [Magnetic Fields] 33 [Magnetic Potential] 33 [Magnetism; Moving Charges--Electrostatic Action] 33 [Magnetism], 3 folders 33 "Maxwell's Electromagnetic Theory," 1882 33 "Methods of Magnetization" 33 "New Theory of Earth's Magnetism" 34 "Old Magnetic Observations", 1870-1871 5 folders 34 "Old Observations" 34 [Optics], 2 folders 34 [Optics Calculations], 2 folders 34 [Plane and Stationary Waves] 35 "Photographic Map of the Norman Solar Spectrum" 36 "Preliminary Notes on Mr. Hall's Recent Theory" 36 "Power of Mag[netism] at [a] Distance" 36 "Resistance and Self-Induction" 36 "Revolving Spheres in Magnetic Fields" 36 [Sketches and Diagrams] 36 "Skin Effect" 36 "Standard Old Calculations" 36 "Standard Wavelengths" 36 "Standards--Bell" 36 "Standards--Reduced 1/50,000" 36 [Subject Lists] 36 "Synchronous Motor" 36 "Tables and Calculations on the Winding of Impedance Coils" 36 [Telegraph Cable], 2 folders 36 "Tesla Motor" 37 [Tesla Motor] 37 "Thermodynamics" 37 [Thermometry, Helise, etc.] 37 "Transformer Theory" 37 [Use of diffraction patterns to compare properties of elements], 2 folders 37 "Use of Flat Grating" 37 [Vortex Motion and Potential] 37 [Wavelengths], 2 folders 37 [Zeeman and Faraday Effect]. 1896-1900 3 folders 38 [Unsorted lab data], 8 folders Series 5: Writings. Series 5: Writings, 1876-1901 5 boxes

This series contains drafts of articles by Rowland as well as copies of his published works. The most complete collection of his printed articles is contained in the reprints series (Series 8; see description below). The reprints in the writings series, although duplicated in the reprints series, contain corrections and comments in Rowland's hand. Also, most of the manuscripts were published, so drafts may be compared with the finished product. Some of the interesting unpublished manuscripts include Rowland's notes on Thomas Edison's patents, his argument against duties on imported books, and a tribute to the British physicist, James Clerk Maxwell.

In addition to the reprints series, Rowland's most significant published works were gathered together after his death, and republished in a memorial volume entitled Physical Papers of Henry A. Rowland. This volume is included in the writings series.

Arranged alphabetically.

Box Contents 39 "The Screw [and Diffraction Gratings]" 39 "The Action of Force on Fluids", ms. 39 "Appendix to Paper on the Mechanical Equivalent of Heat, Containing the Comparison with Dr. Joule's Thermometer", ms. 39 "The Arc Spectra of the Elements. I. Boron and Beryllium", reprint. 39 "The Arc Spectra of the Elements. Boron, Beryllium, Germanium, Platinum, Osmium, Rhodium, Ruthenium, and Palladium", reprint. 39 "Arc Spectra of Vanadium, Zirconium, and Lanthanum", reprint. 39 [Circular letter to the Committee of National Academy of Science, 1/6/94], ms. 39 "Diffraction Gratings", ms. 39 "Distribution of Magnetism", ms. 39 [Duties on imported books], ms. 39 [Electric currents and magnetic action], ms. 39 "Electrical Measurement by Alternating Current", reprint. 39 "Electromagnetic Action in a Current", ms. 39 "Electromagnetic Waves and Oscillations at the Surface of Conductors", reprint. 39 "A Few Notes on the Use of Gratings", ms. 39 "A Glimpse at an American Switzerland", and "Johns Hopkins University in Futuro", mss. 39 [Grating machines], ms. 39 "Gratings for Optical Purposes" ms. 39 [Guidelines for laboratory work], ms. 39 "Illustrations of Experimental Sympathetic Vibration with Mathematical Notes", ms. 39 "Magnetic Distribution", reprint. 39 "The Magnetic Electric Machine. Hint on the Improvement." ms. September 1868 39 "Magnetic Permeability", reprint. 39 "Measure of Work in the Theory of Energy", ms. 40 "The Mechanical Equivalent of Heat", ms. 40 [Notes on education], ms. 40 "Notes on Electric and Magnetic Measurement", ms. 40 "Notes on Revolving Commutator Brushes and Their Use in Solving Many Novel Practical Problems", ms. 40 "Notes on the Theory of the Transformer", ms. 40 [Notes on Thomas Edison's patents], ms. 40 "On Certain Cases of Steady Motion in an Indefinitely Extended Fluid with Solid Bodies", ms. 40 "On Magnetic Distribution and Permeability", reprint. 40 "On Some New Uses for Thomson's Reference Galvanometer", ms. 40 "On the Classification of Vector Quantities", ms. 40 "On the General Equations of Electromagnetic Action, with Application to a New Theory of Magnetic Attractions, and the Theory of the Magnetic Rotation of the Plane of Polarization of Light", reprint and ms. 40 "On the Magnetic Action of Electric Convention", ms. 41 "On the Magnetic Permeability and Maximum of Magnetism of Nickel and Cobalt", reprint. 41 "On the Motion of a Perfect Incomprehensible Fluid When No Solid Bodies are Present", reprint. 41 "On the Propagation of an Arbitrary Electro-Magnetic Disturbance on Spherical Waves of Light and the Dynamical Theory [of] Diffraction", reprint. 41 "On the Study of Natural Philosophy", ms. 41 "On Viscous Fluid Motion", ms. 41 "Photograph of the Normal Solar Spectrum", reprint. 41 "A Preliminary Table of Solar Spectrum Wavelengths", reprint. 41 "Relative Brightness of Spectra", ms. 41 "Relazione Critica sulle Varie Determinazioni dell'Equivalente Meccanico della Caloria", reprint. 41 "Report on the Experiment of the Ohm", ms. 41 "Report Upon the Progress of Spectrum Work since the Publication of the Preliminary Table of Wavelengths", ms. 41 "Steam Engine With Variable Cutoff", ms., Senior Thesis. 1870 41 "Theory of diffraction", ms. 42 "To Measure Resistance", ms. 42 "Tribute to Maxwell”, ms. 42 "The Triumphs of Mathematics", ms. 42 "Vector Quantities", ms. 42 "The Work Done on Unequal Masses by Equal Forces in Equal Times", mss. 1868 42 “Physical Papers”, [volume of Rowland's collected papers]. 42 [Table of Contents from the reprint series]: 42 "Acoustics" 42 "Apparatus and Methods" 42 "Chemistry" 42 "Electricity" 42 "Gases" 42 "Heat" 42 "Liquids" 42 "Mechanics" 42 "Physics of the Earth" 42 "Physiological Physics" 42 "Solids" 43 [Conservation of Energy], 1881 3 folders 43 [Electricity--Historical Notes] 43 "Electrodynamics" 43 [Electromagnetic Theory]. 1898-1900 43 "Heat" 43 [Magnetism; Conservation of Force; Nitroglycerine Explosive Force] 43 [Moving Bodies and Pendulums] 43 [Spectroscope] 43 [Speech on new lab facilities] 43 "Theories of Heat" Series 6: Rowland Multiplex Printing Telegraph Company. Series 6: Rowland Multiplex Printing Telegraph Company, 1898-1905 4 boxes

This series contains records of the company, research notes on the telegraph, and sample transmissions from the telegraph, as well as correspondence from Henry Wiegand and Joseph Penniman about the development of the telegraph.

Most of the material is arranged chronologically. The sample transmissions, however, are for the most part undated, and so have been simply boxed together.

Box Contents 44 Research notes on the telegraph, 5 folders 44 Printed material on telegraphs, 1900-1936 45 Catalogue of Telegraph Patents, 1848-1897 45 Correspondence, 1890-1907 7 folders 45 Legal papers, 1898-1909 5 folders 45 Report of the President, March 1, 1905 46 Letters of agreement and correspondence, 1898-1907 2 folders 47 Printouts of telegraph transmissions, 1898-1901 48 Printouts of telegraph transmissions, 1898-1901 Series 7: Cataract Construction Company. Series 7: Cataract Construction Company, 1892-1901 2 boxes

This series contains material on the Niagara Falls hydroelectric project, sponsored by the Cataract Construction Company. The lawsuit with the company is particularly well-documented, as is Rowland's work for them. There is related material in the correspondence series: see especially Brown and Boverie Company, E. F. N. Mascart, William B. Rankine, Coleman Sellers, Francis Lynde Stetson, Theodore Turrettine, and Edward A. Wickes.

Arranged alphabetically.

Box Contents 49 Adams, Edward, correspondence, 1889-1900 3 folders 49 Calculations for Niagara Falls Project 49 Cie de l'Industrie Electrique. Proposal. 49 Forbes, George, correspondence. 49 Forbes, George, "Report on the First Plant for the Cataract Construction Company at Niagara Falls." 49 ----- "Second Report to the Cataracty Construction Company on their Electrical Work." 49 General Electric, 3 folders 49 Graphs. 49 Oerlikon, 4 folders 49 "Plans for Power Plant, Cataract Construction Company.", Rowland, Henry A. 49 -----Analysis of Data. 49 -----Calculations re: Niagara Falls Project. 49 -----Deposition. 50 Rowland, Henry A., Ms. draft of response to George Forbes's report, 4 folders. 50 -----Report on George Forbes's report. 2 tss: original and corrected carbon. 50 -----Research notes, 4 folders 50 "Rowland vs. Cataract Construction Co.", trial transcript, 3 folders 50 Westinghouse Corporation. Series 8: Reprints. Series 8: Reprints. 56 volumes

Rowland kept a large collection of reprints on topics of his research. These were bound in 56 volumes and the reprints date from 1793 to 1901. The topics of the volumes are Electricity (28 volumes), Heat (8 volumes), Liquids (3 volumes), Mechanics (2 volumes), Gases (3 volumes), Apparatus and Methods (2 volumes), Physics of the Earth (6 volumes), Solids (l volume), Chemistry (1 volume), Acoustics (l volume), and Physiological Physics (l volume).

A list of the most common journals collected in each series is in Appendix 1. Photocopies of the titles of the reprints in each volume are in Box 44. Twenty additional volumes of this Reprint Series hav been alienated from the collection. These volumes are labeled "Light" and are in the Eisenhower Stacks (call # QC3.L72v.1-20).

Series 9: Patents Series 9: Patents, 1893-1905 1 box

Copies of Rowland's patents and some of the supporting application materials are contained in this series. Additional information about Rowland's forays into patenting his work may be found in the Whitman and Wilkinson and Edward Wilkes correspondence in Series 1.

(Often a copy of a patent was filed alphabetically by name of the patent holder in the correspondence series.)

The material is arranged chronologically.

Box Contents 51 Copies of Rowland's patents, 1893-1905