| Call number | Item |
| H | Social Sciences (Go to start of category) |
| HX | Socialism, Communism, Utopias, Anarchism (Go to start of category) |
| HX1 .C65 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) The Common Cause (New York: The Social Reform Press, 1912-1913) (full serial archives) |
| HX1 .C7117 | The Communist, contrib. by Communist Party of America (full serial archives) |
| HX1 .C73 | The Comrade: An illustrated Socialist Monthly (partial serial archives) |
| HX1 .D2 | The Dawn, ed. by William Dwight Porter Bliss (partial serial archives) |
| HX1 .D45 | Democratic Left, by Democratic Socialists of America and Democratic Socialist Organizing Committee (U.S.), contrib. by Michael Harrington (full serial archives) |
| HX1 .D58 | Dissent (partial serial archives) |
| HX1 .E93 | The Evolutionist (ran 9 issues, 1909-1910), ed. by Arthur M. Lewis (full serial archives) |
| HX1 .F25 | Fabian Tracts, by Fabian Society (Great Britain) (partial serial archives) |
| HX1 .F5 | Fight (selected issues, 1934-1939), by American League Against War and Fascism (partial serial archives) |
| HX1 .F65 | International Socialist Review (partial serial archives) |
| HX1 .H255 | Hammer and Tongs, by Socialist Party-Social Democratic Federation (partial serial archives) |
| HX1 .L12 | The Intercollegiate Socialist (1913-1919), by Intercollegiate Socialist Society (U.S.) (partial serial archives) |
| HX1 .L12 | The Socialist Review (New York: Intercollegiate Socialist Society, 1919-1921), by Intercollegiate Socialist Society (U.S.) and League for Industrial Democracy (partial serial archives) |
| HX1 .L1313 | The Labor Argus (partial serial archives) |
| HX1 .L26 | Labor Action (1940-1958) (partial serial archives) |
| HX1 .L3 | Labor Age (full serial archives) |
| HX1 .L44 | Left Turn (partial serial archives) |
| HX1 .L5 | The Liberator (US radical labor magazine, 1918-1924) (full serial archives) |
| HX1 .M212 | The Masses (full serial archives) |
| HX1 .M514 | The Militant (partial serial archives) |
| HX1 .M514 | New Militant, by Workers Party of the United States (full serial archives) |
| HX1 .M53 | The Melting Pot (St. Louis-based "magazine of protest", ran ca. 1913-1920) (partial serial archives) |
| HX1 .N23 | The Nationalist (Boston: Nationalist Educational Association, c1889-1891), ed. by Henry Willard Austin and John Storer Cobb (full serial archives) |
| HX1 .N35 | The New International (Marxist periodical running from the 1930s to the 1950s) (partial serial archives) |
| HX1 .N45 | New Masses (partial serial archives) |