Cassette 1. Sound recording of "El Planeta, el Pais, el Huesped," May 18, opening session

Gall, Olivia, sound recording

Sirvent, Carlos (?), sound recording

Cárdenas Solórzano, Cuauhtémoc, sound recording

Broue, Pierre, sound recording

Gilly, Adolfo, "Espana, Mexico: Esperanza y Tragedia de los Anos 30" sound recording

Cassette 2. "El Planeta, el Pais, el Huesped," May 18, second session sound recording

Monsivais, Carlos, "Revolucion Mexicana: Territorio de Refugio Politico, Intelectual, Artistico" sound recording

Broue, Pierre, "Leon Trotsky a 20 Anos de Octubre" sound recording

Cassette 3. "Cardenas y Trotsky ante el Paredon de la Derecha," May 19, second session sound recording

Katel, Peter, "La Prensa Estadunidense ante el Huesped Rojo de Cardenas" sound recording

Perez Montfort, Ricardo, "Las Derechas Mexicanas y Trotsky" sound recording

Cassette 4. "El Mexico Cardenista: Territoria de Guerra entre Marxismos," May 20, first session sound recording

Aguirre, Ma. Teresa, "Lombardo contra Trotsky" sound recording

Rodriguez Araujo, Octavio, "Lombardo y el Partido Comunista Mexicano" sound recording

Aguilar Mora, Manuel, "Trotsky contra 'los Amigos de la U.R.S.S.'" sound recording

Carr, Barry, "Browder, Trotsky y el Congreso Extraordinario del Partido Comunista Mexicano (Marzo del 1940)" sound recording

Cassette 5. "Primer Pasos del Trotskysmo en Mexico," May 20, second session sound recording

Galvez Cancino, Alejandro, "Julio Antonio Mella, el Primer Troskysta en Mexico" sound recording

Ibarra, Felix, "Nacimiento de la Oposicion de Izquierda en Mexico (1928-1934)" sound recording

Fernandez, Octavio, "Trotsky y los Trotskystas Mexicanos (1934-1940): Un Punto de Vista" (partial) sound recording

Cassette 6. "Primer Pasos del Trotskysmo en Mexico sound recording (contd.)

Fernandez, Octavio, "Trotsky y los Trotskystas Mexicanos (1934-1940): Un Punto de Vista" sound recording (contd.)

Curtiss, Charles, "Testimonio del Representante de la Iva. Internacional en Mexico" sound recording

Cassette 7. "Primer Pasos del Trotskysmo en Mexico" sound recording (contd.) (?)

Discussion

Cassette 8. "Ideas, Artes, Ideologias: Una Triple Militancia?" May 21, second session sound recording

Laroche, Evelyne, "Andre Breton y Trotsky: Surrealismo y Bolchevismo en el Espacio Cardenista" sound recording

Weissman, Suzi, "Serge y Trotsky" sound recording

Meza, Julian, "Victor Serge y Trotsky: Dos Oposiciones de Izquierda, dos Mexicos" sound recording (partial ?)

Cassette 9. "Ideas, Artes, Ideologias: Una Triple Militancia?" May 21 sound recording (contd.)

Meza, Julian, "Victor Serge y Trotsky: Dos Oposiciones de Izquierda, dos Mexicos" sound recording (contd.)

"Tres Analisis Marxistas del Socialismo de Cardenas," May 22, first session sound recording

Durand, Victor, "El Caudillo Obrero" sound recording

Cassette 10. "Cultura y Clausura," May 22, closing session sound recording

Weiss, David, "Material Filmico Original de Trotsky in Mexico" sound recording

Trotsky on tape sound recording

Saludos fraternales P.R.T. sound recording

Sejourne, Laurette, "Pequeno Homenaje a Natalia" sound recording

"Relatos Informales y Espontaneos" sound recording

Novack, George (?), sound recording

Fernandez, Octavio (?), sound recording

Museo (?), sound recording

Vlady, "Vigencia y resurreccion" sound recording (partial)

Cassette 11. "Cultura y Clausura" sound recording (contd.)

Vlady, "Vigencia y Resurreccion" sound recording (contd.)

Corridos sound recording

"Corrido del Comunismo Mexicano" sound recording

"Corrido de un Sinarquista a Lombardo" sound recording

"Corrido a Leon Trotsky" sound recording

Gall, Olivia, closing statement sound recording