The correspondence has been organized in two separate ways. Hollander (or possibly a family member) sorted much of the correspondence alphabetically by writer. This is Series I. The container list for boxes 1-12 lists most of the correspondents' names with some institutional affiliations noted. This corr- espondence reflects Hollander's wide-ranging interests and complements the letters in Series II.

Especially well-represented in this series is Hollander's work with the American Economic Association. See his correspondence with Winthrop M. Daniels and Ray B. Westerfield. Other letters dealing with economic theory can be found in the correspondence with fellow economists such as Henry Carter Adams, Emily G. Balch, Hiram Bingham, Thomas Nixon Carver, Davis R. Dewey, Paul H. Douglas, Francis Y. Edgeworth, Richard T. Ely, Irving Fisher, Lewis H. Haney, Archibald Henderson, Edmund J. James, Philip C. Jessup, Alvin Johnson, E.W. Kemmerer, David Kinley, Samuel McCune Lindsay, Wesley C. Mitchell, H.G. Moulton, Scott Nearing, Carl C. Plehn, William Z. Ripley, Joseph A. Schumpeter, Edwin Robert Anderson Seligman, Frank W. Taussig, Charles M. Thompson, and Walter F. Willcox.

Hollander also kept in touch with bankers and officials dealing with monetary policy. See the correspondence of James Bonar, Frederick H. Curtiss, H.P. Davison, Dwight W. Morrow, Paul Warburg, Jr., Richard Whitney, and Henry Parker Willis.

Hollander's work in labor relations is covered in Series II, but there is allied correspondence in this series. See the correspondence with the American Association for Labor, Samuel Gompers, Elinor Pancoast, Pioneer Cloak Manufacturing Co., Mildred Rankin, W.H. Vickers, and Edward C. Wilson.

There is correspondence concerning railways especially the Baltimore & Ohio Railroad in the correspondence of Logan G. McPherson, M.B. Wild, and Daniel Willard.

Hollander's work on Latin America especially Puerto Rico, the Dominican Republic, and Guatemala is discussed in the correspondence with William G. McAdoo, Leo Stanton Rowe, Albert Sanches, and Otto Schoenrich. The Philippines are discussed in letters from John S. Hord and Cuba in letters from Albert Sanchez.

There are several items (l925, 1931) relating to the Russian revolution and reconstruction in the letters of the Page School of International Relations and Donald Stephens.

Information on social welfare activities can be found in the correspondence of Charles J. Bonaparte, Edward T. Devine, and Walter S. Ufford. This topic is complemented by the series of Hollander's correspondence on his Jewish communal activities which is owned by the Jewish Historical Society of Maryland.

The second series of correspondence was grouped [by Hollander?] according to the activity which generated it. This is arranged chronologically.

Hollander was active in the administration of the University, and this series contains the results of several faculty committees. The letters for 1912 contain information on the Academic Council. Also in that year there are personal letters between Hollander and his wife's uncle Abram G. Hutzler. Hollander apparently borrowed money from Hutzler to lend to promising graduate students to finish their education. Hollander continued his interest in financing graduate education by serving on the fellowships and scholarships committee in 1931. Faculty compensation was also a concern, and the correspondence for 1925-27, 1931, 1933, and 1936-37 has the information on the salary committees.

Hollander also served on committees concerned with the content of the graduate programs. In 1930 there is material on the Hopkins Institute of Law, and from 1930 until 1933 Hollander helped to select individuals for the Speyer Visiting Lectureship. The 1930 correspondence also has material on the faculty committee studying oral examiniations for Ph.d. candidates.

In 1931 and 1937 Hollander was involved in a committee studying the status of higher studies at Hopkins. The Hopkins faculty opposed the proposed legislation requiring an oath of allegiance for teachers, and the 1935 correspondence outlines this issue.

Outside of his teaching duties at Hopkins, Hollander found time to write and speak on economic theory and to participate on commissions studying the application of economic theory to social problems. One of Hollander's earliest publication projects was to succede Herbert Baxter Adams as the editor of Monographs on American Social Economics. This series was an outgrowth of the United States Commission to the Paris Exposition of 1900, Department of Social Economy. The file also includes some material on the Social Economy exhibit at the Exposition.

In 1915 Hollander attended the First Pan-American Financial Conference, and as a result he was appointed, by Treasury Secretary William McAdoo, the Chairman of the Permanent Group Committee on the Dominican Republic. There is material on this in the correspondence for l9l5 and l9l6 as well as in his correspondence (in Series I) with L.S. Rowe of the Treasury Department and later the Secretary-General of the Second Pan-American Financial Conference held in l920. The Rowe file also contains reports on Guatemala in 1918-1919. Also dealing with financial conditions in Latin America, especially Puerto Rico, are the letters (1908-33) between Hollander and Otto Schoenrich. These are also in Series I.

During 1926 and 1927 Hollander was editor of a festschrift in honor of the eightieth birthday of John Bates Clark. It was entitled Economic Essays Contributed in Honor of John Bates Clark, and the work was sponsored by a committee of the American Economic Association. The files for this project contain both correspondence with the contributors and with committee members Edwin R.A. Seligman, Richard T. Ely, B.M.Anderson, and J.M.Clark.

In 1930 Hollander became the chairman of the Committee on Economic Texts of the Facsimile Text Society. The correspondence for 1930 through 1933 deals with this work.

During the period between May 1929 and December 1930, Hollander contributed editorials to the Baltimore News. He collected a selection of these editorials in A Professor Holds Forth (1930). A copy of this book is in this collection as well as some correspondence about his editorials.

Hollander spoke in public on economic issues, and material concerning one of these public speeches is in his papers. In 1931 Hollander was one speaker in a popular series explaining aspects of the Depression. The series was sponsored by the National Advisory Council on Radio in Education. Hollander's speech was "Banking Policies in Relation to Economic Recovery." Correspondence relating to this is in the papers.

During the 1920s and 1930s Hollander's expertise was called upon to study various economic problems. The results of several of these studies are in this series. In 1923 the U.S. Coal Commission undertook a study of corporate relationships and financing in its industry. They hired Hollander to examine the anthracite coal industry, and in this sereis are the correspondence, preliminary reports as well as Hollander's final memoranda "Combination and Profits in the Anthracite Coal Industry."

In 1929 William F. Broening, Mayor of Baltimore, appointed a commission to study the per diem wage paid by contractors engaged in city work. Hollander served as the chairman, and his papers include correspondence and research reports on this issue.

In 1931 Hollander was engaged in a survey of wages in relation to a business depression, and there is correspondence with Julius Klein, Assistant Secretary of Commerce on this topic. Also in this year the state of Maryland undertook a survey of its tax structure. Hollander was on the Tax Survey Commission. The correspondence for 1931 and 1932 details the Commission's work and includes copies of some of the research reports completed for the survey.

In September 1932 women clothing workers in Baltimore staged a walk-out and began picketing shops. As the disturbances grew, Mayor Howard W. Jackson appointed Hollander to investigate conditions in the clothing industry. The files on this work contain correspondence and research reports by the investigators hired by Hollander. These include statements concerning specific companies and the results of interviews with striking workers. The following year Hollander served on a commission to study whether the "Baltimore Market" of the coat and suit industry should be moved from the Eastern to the Western area.

Hollander served on the commission to study old age pensions for Maryland in 1934. There is correspondence, research reports, and printed material on this topic.

Hollander was interested in monetary policy. He served on the Chamber of Commerce Monetary Policy Committee from 1934 to 1939. Earlier he had studied the question of silver in an address to the Chamber of Commerce. There is a copy of this address and correspondence in the files for 1931.

There are a small number of Hollander's writings and speeches other than those discussed above. These were separated from the correspondence and were retained that way. They are arranged by date. A list of the titles is in the container list.