Letters, manuscripts, documents, and printed materials by and relating to explorers of both poles. Many of the letters are addressed to Vilhjalmur Stefansson or Bassett Jones. The letters for the most part discuss subjects of professional interest. Thre are printed materials, photographs and memorabilia of many expeditions and explorers.

This collection includes nine letters of Ralph Waldo Emerson as well as letters of Louis Agassiz, Amos Bronson Alcott, Oliver Wendell Holmes, Sr., Henry Wadsworth Longfellow, James Russell Lowell, John Lothrop Motley, Charles Sumner, and John Greenleaf Whittier. In addition, there are two incomplete manuscripts by Emerson and one document from the Liverpool Custom-house signed by Nathaniel Hawthorne as Consul for the United States. The collection also includes the corrected typescript, index, and page and galley proofs for Thomas Franklin Currier, A BIBLIOGRAPHY OF OLIVER WENDELL HOLMES (New York, 1953) which was edited by Professor Tilton. Also, some early correspondence and photographs of the Tilton family and friends. There are letters from the actors Annie Louise Ames, Richard J. Dillon, and Hans L. Meery to Tilton's grandfather, Bernard Paul Verne, as well as photographs, tintypes, and daguerreotypes of the Verne family and friends.

The collection includes correspondence, manuscripts, documents, photographs, subject files and printed materials. Correspondence consists mostly of letters to Elizaveta Miller. Memoirs and manuscripts are mostly by Miller and cover topics ranging from her childhood in St. Petersburg to her emigration to South Africa. Subject files include materials concerning her brother, Grigoriĭ Lozinskiĭ, a poet, translator and literary critic. Documents and photographs concern the Lozinskiĭ and Miller families. Printed materials consist of books, clippings, periodicals, and pamphlets; included is an "Almanach de St. Petersburg" (1911), with directories and a listing of names.

Correspondence, manuscripts, notes, drafts of speeches, appointment books, subject files, documents, photographs, memorabilia and printed materials. There are notes from her lectures on Sociology at Adelphi College in 1911-1912; papers from 1912-1932, when Perkins served on the Commission for Safety and on the Industrial Commission of New York State; the main body of the material is from the period of her cabinet office, 1933-1945; and some items from her days on the Civil Service Commission, 1946-1953. Also included are personal and family papers.

Correspondence, research notes, articles, clippings, photostats, and photographs. These files concern his interest in Pierre Bayle, Antoine Arlier, and the Renaissance in Provence, as well as the Romanic Review, philology, French, Spanish, and celtic studies. Among the correspondents are: Philippe Berthelot, Nicholas Murray Butler, F.R. Coudert, John H. Finley, the Prince de Ligne, Curtis Hidden Page, William B. Parsons, and Aime ́Puech.

The collection includes two diaries of his American tour (one is made up of his rough travel notes, the other is in edited form for circulation), a memorial volume of manuscripts about his wife (Ann Loxley Rhees) prepared by his daughter Eliza (Mrs. Nicholas Murray), and 1851 passport of Nicholas Murray, a letter of Thomas Chalmers Murray to his sister Mary Jones Murray Butler (the mother of Nicholas Murray Butler, President of Columbia University), correspondence between Welsh historian Gwyn A. Williams and collection donor Mary Butler Brown, an essay entitled "Morgan John Rhees and Beula" by Gwyn A. Williams, Ann Loxley Rhees's valedictory oration on graduation from Philadelphia's Ladies Academy, an address on female education ca. 1789, family obituary clippings, poems, misc. items, and a photograph of Ann Loxley Rhees. An edited version of substantial sections of the diaries of M.J. Rhees was published in John Thomas Griffith's 1910 biography and miscellany of Rhees and his family, a copy of which is included in this collection. An edited version of a previously unpublished section of the diary, from May 2nd to July 9th 1795, was published in Northwest Ohio History (vol. 80, no. 2), but it is an unreliable transcription containing many inaccuracies, according to Dr E. Wyn James of Cardiff University, who is working on a new edition of the M.J. Rhees diaries.

The collection contains RNK correspondence, documents, photographs, subject files, organizational records and printed materials. There are letters from Boris Bakhmeteff, Pavel and Petr Dolgorukov, Zinaida Gippius, Aleksandr Kutepov, Dmitrii Merezhovskii, Bernard Pares, Ariadna Tyrkova-Williams, George Vernadsky, and Petr Vrangel. There is a short essay by Aleksandra Tolstaia about her father. The manuscripts relate to political, historical and sociological issues. Most of the subject files relate to emigre organizations other than the RNK, while those of the RNK are classified into files of financial records, bulletins, minutes and lists of names and addresses. Among the printed materials are brochures and pamphlets, clippings, newspapers, and books.

Correspondence, manuscripts, playscripts, screenplays, diaries, documents, contracts, financial records, photographs, phonograph records, motion pictures, playbills, posters, sheet music, cartoons, art work, memorabilia, scrapbooks, and printed materials. . The collection consists chiefly of correspondence and production files relating to the creation, production, and performance of their works for stage, screen, radio, and television, such as Leave It To Me and Kiss Me Kate (with music by Cole Porter), Boy Meets Girl, and My Three Angels. Correspondence (with twentieth century authors, playwrights, musicians, political figures, and actors) includes: George Abbott, Jean Arthur, Bennett Cerf, Katharine Cornell, Jo Davidson, George and Ira Gershwin, Alec Guinness, W. Averell Harriman, Lilli Lehmann, Mary Martin, Laurence Olivier, Mary Pickford, Cole Porter, Regina Resnick, Eleanor Roosevelt, Robert E. Sherwood, Lincoln Steffens, Kurt Weill, Rebecca West, and Thornton Wilder. There is also correspondence concerning Bella Spewack's work with the New York Girls' Scholarship, UNRA, and the Sports Center of Israel. In addition to the production files, there are manuscripts and typescript drafts for novels, short stories, and articles by the Spewacks.

The collection consists of correspondence, manuscripts, notebooks, diagrams and tables, lists of addresses, and printed materials. Correspondence is mostly drafts of letters by Novak and letters to and from Mark Weinbaum. The bulk of the collection consists of manuscripts by Novak dealing with topics in engineering and physics. Novak criticizes Einstein's Theory of Relativity and Newton's laws of mechanics in his discussions. Notebooks include drafts of articles. Diagrams and tables mostly complement his manuscripts. Printed materials include copies of a pamphlet by Novak"Fizika 3-khmernogo prostranstva.".

This is a small collection of correspondence, manuscripts, typescripts, teletype and mimeographed copies, clippings, and photostats, reflecting Berkman's reporting and intelligence work during the 1940s. There are radio dispatches from wartime Yugoslavia and from Greece in 1944, Office of Strategic Services (OSS) reports and analysis concerning Greece, Turkey, Eastern Europe, the Middle East, and the Far East, and a pamphlet reflecting his later work with UNICEF.