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Select: Articles, Encyclopedia of World Art, circa 1956-1966 Articles, Encyclopedia of World Art , 1956-1957 Select: Articles, Encyclopedia of World Art, 1956-1957 Articles, Encyclopedia of World Art , 1958 Select: Articles, Encyclopedia of World Art, 1958 Articles, Encyclopedia of World Art , 1958 Select: Articles, Encyclopedia of World Art, 1958 Articles, Encyclopedia of World Art , 1959 Select: Articles, Encyclopedia of World Art, 1959 Articles, Encyclopedia of World Art , 1959 Select: Articles, Encyclopedia of World Art, 1959 Articles, Encyclopedia of World Art , 1960-1962 Select: Articles, Encyclopedia of World Art, 1960-1962 Articles, Encyclopedia of World Art , 1963-1966 Select: Articles, Encyclopedia of World Art, 1963-1966 Booklets, 1930-1956 Select: Booklets, 1930-1956 Book, Art Collecting in the United States (research), 1958-1961 Select: Book, Art Collecting in the United States (research), 1958-1961 Book, Art Collecting in the United States (research), 1962 Select: Book, Art Collecting in the United States (research), 1962 Book, Art Collecting in the United States (research), 1962 Select: Book, Art Collecting in the United States (research), 1962 Book, Art Collecting in the United States (research), 1963-1964 Select: Book, Art Collecting in the United States (research), 1963-1964 Book, Art Collecting in the United States (notes, #1), 1958-1961 Select: Book, Art Collecting in the United States (notes, #1), 1958-1961 Book, Art Collecting in the United States (notes, #2), 1958-1961 Select: Book, Art Collecting in the United States (notes, #2), 1958-1961 Book, Art Collecting in the United States (notes, #3), 1958-1961 Select: Book, Art Collecting in the United States (notes, #3), 1958-1961 Book, Art Collecting in the United States (notes, #4), 1958-1961 Select: Book, Art Collecting in the United States (notes, #4), 1958-1961 Book, Art History and Connoisseurship , 1938 Select: Book, Art History and Connoisseurship, 1938 Book, Painter's Workshop (correspondence), 1947-1966 Select: Book, Painter's Workshop (correspondence), 1947-1966 Book, Painter's Workshop (printer's draft), 1953 Select: Book, Painter's Workshop (printer's draft), 1953 Book, Painter's Workshop (clippings), 1954 Select: Book, Painter's Workshop (clippings), 1954 Book, Painter's Workshop (research, artists), 1947-1953 Select: Book, Painter's Workshop (research, artists), 1947-1953 Book, Painter's Workshop (research, artist workshops), 1947-1953 Select: Book, Painter's Workshop (research, artist workshops), 1947-1953 Book, Painter's Workshop (research, materials), 1947-1953 Select: Book, Painter's Workshop (research, materials), 1947-1953 Book, Painter's Workshop (research, materials), 1947-1953 Select: Book, Painter's Workshop (research, materials), 1947-1953 Book, Painter's Workshop (research, techniques), 1947-1953 Select: Book, Painter's Workshop (research, techniques), 1947-1953 Handbook on the Preservation of Paintings (correspondence), 1933-1936 Select: Handbook on the Preservation of Paintings (correspondence), 1933-1936 Handbook on the Preservation of Paintings (International Conference), 1930-1931 Select: Handbook on the Preservation of Paintings (International Conference), 1930-1931 Handbook on the Preservation of Paintings (International Conference), 1933 Select: Handbook on the Preservation of Paintings (International Conference), 1933 Handbook on the Preservation of Paintings (final draft), 1933 Select: Handbook on the Preservation of Paintings (final draft), 1933 Handbook on the Preservation of Paintings (drafts), 1933 Select: Handbook on the Preservation of Paintings (drafts), 1933 Translation, "Relations with the German Art Group", circa 1905-1920 Select: Translation, "Relations with the German Art Group", circa 1905-1920 Translation, "The Problem of England", circa 1905-1920 Select: Translation, "The Problem of England", circa 1905-1920 Unpublished Essay, "Present Economic and Political Forces", 1910 Select: Unpublished Essay, "Present Economic and Political Forces", 1910 Unpublished Essay, "Present Economic and Political Forces", 1910 Select: Unpublished Essay, "Present Economic and Political Forces", 1910 Unpublished Essay, "State Intervention in Industrial Disputes", circa 1910-1920 Select: Unpublished Essay, "State Intervention in Industrial Disputes", circa 1910-1920 Unpublished Poem, 1946 Select: Unpublished Poem, 1946 Draft, "Cares of a Curator", circa 1920-1950 Select: Draft, "Cares of a Curator", circa 1920-1950 Draft, [Charitable Contributions to Museums], circa 1920-1950 Select: Draft, [Charitable Contributions to Museums], circa 1920-1950 Draft, "Eric Brown as I Knew Him", circa 1920-1950 Select: Draft, "Eric Brown as I Knew Him", circa 1920-1950 Draft, [Exhibition and Book Introduction], circa 1920-1950 Select: Draft, [Exhibition and Book Introduction], circa 1920-1950 Draft, "Gothic Art", circa 1920-1950 Select: Draft, "Gothic Art", circa 1920-1950 Draft, "Gothic Art", circa 1920-1950 Select: Draft, "Gothic Art", circa 1920-1950 Draft, "Gothic Art", circa 1920-1950 Select: Draft, "Gothic Art", circa 1920-1950 Draft, "Modern War", circa 1920-1950 Select: Draft, "Modern War", circa 1920-1950 Draft, "Veneitan Painting", circa 1920-1950 Select: Draft, "Veneitan Painting", circa 1920-1950 Exhibition Catalogs, 1930-1962 Select: Exhibition Catalogs, 1930-1962 Miscellaneous Writing Notes, circa 1920-1950 Select: Miscellaneous Writing Notes, circa 1920-1950 Miscellaneous Writing Notes, circa 1920-1950 Select: Miscellaneous Writing Notes, circa 1920-1950 Bibliographies, circa 1920-1950 Select: Bibliographies, circa 1920-1950 Bibliographies, circa 1920-1950 Select: Bibliographies, circa 1920-1950