Collections : [Rare Book & Manuscript Library]

Letters written to Mackintosh chiefly on scientific subjects, from his colleagues including Thomas Sterry Hunt (1826-1892), 37; William Earl Hidden (1853-1918), 50; Thomas Egleston (1832-1900), founder of the School of Mines, Columbia University, 10; R.S. Penniman, 26; and Pierre Eugene Marcelin Berthelot (1827-1907), eminent French chemist, 1. Also, miscellaneous documents relating to Mackintosh and about fifteen printed articles and brochures.

Letters to Kunz from various members of the faculty at Columbia University's School of Mines. Also, approximately 175 clippings pertaining to various aspects of mineralogy.

Professional correspondence of Egleston, consisting of incoming letters and technical reports relating to mining engineering and metallurgy; and carbon copies of correspondence between Egleston and Seth Low for the years 1890 to 1900.

Correspondence, subject files, corporate committee files, corporate reports, yearly appointment calendars, biographical materials, photographs, books from his personal library, memorabilia and works of art. Correspondence includes 3 bound slipcased volumes containing 471 letters, notes and congratulatory telegrams on the occasion of R.D. Lilley being named President of AT&T, April 1, 1972. Correspondents include David Rockefeller and Peter W. Rodino, Jr. Subject files contain Columbia University activities. Manuscript files include his student notebooks from the School of Engineering (1931) and the School of Mines (1934-1935). Corporate committee files include the New Jersey Commission on Civil Disorders, 1967-1968. Memorabilia consists of seven Columbia University related plaques, awards, citations, and varsity letters and fifteen Columbia related commemorative gifts and tokens, as well as thirty-five non-Columbia related diplomas, plaques, awards, citations and certificates and fifty-five non Columbia related trophies, commemorative gifts, and presentation pen & pencil sets. The works of art include two views of the Park Place building "Columbia College New-York" (NEW YORK MIRROR, 1828) and "Columbia College and College Green" (New York, 1830) facsimile reprint of the "Palm tree print"; a print of a drawing of "Columbia University circa 1903" from the Avery Library; two signed prints of Ernest D. Roth "Hamilton Hall" and the "School of Mines"; and a relief print of "John Jay" by Stanley Wyatt.

Correspondence of Howe, dealing with various departmental affairs such as supplies, laboratory equipment, building maintenance, personnel, students, and examination questions. The chief correspondents are two of Howe's colleagues in the Dept. of Metallurgy, Bradley Stoughton and Arthur Lucian Walker. The Stoughton correspondence runs from 1902 to May 1908, at which time he left Columbia and was replaced by Walker. Although Walker remained in the department until 1929, only his correspondence from May 1908 to 1909 is included. Throughout the correspondence there are frequent references to steel. Most of Howe's letters are originals, while Stoughton and Walker's replies are almost entirely carbon copies. Also, a group of letters of inquiry and letters of reference regarding Howe's effort to find a new assistant during July and August of 1916. The manuscripts and documents consist of twenty reports, with covering letters, by Howe as a metallurgical consultant to various mining and metal companies, 1890-1911; lecture notes, 1884-1896; two scrapbooks of metallurgical photographs; four volumes of blueprint graphs illustrating metallic content; a volume of Howe's experiments on refrigeration, ca. 1888-1889; and various other metallurgical notebooks.