Author: Carlos Cueto (ed.), Pedro Dulanto, Fernando de Azevedo, Ernest Barker, Jorge Basadre, Jean Bayet, Jan Belehradek, Gaston Berger, Pedro Cebollero, James Bryant Conant, Honorio Delgado, Robert Dottrens, Juan García Bacca, Raymond Gibson, Lawrence Mc Ginley, Robert King Hall, B. A. Houssay, J. C. Jones, J. Lambert, Julián Merjas, Rodolfo Mondolfo, Alfonso Reyes, Pedro Roselló, Rafael Valle, Francesco Vito, Aloys Wenzl (auts.)
Author: Luis Alberto Sánchez, Emilio Romero, Edmundo Ubilluz, Alberto Tauro, Max Arnillas Arana, Ántero Bueno, Rafael Dávila, José Mejía Valera, Luis Ortíz de Zevallos, José Tola, José Jiménez Borja, Gregorio Garayar, Carlos Collazos, Jorge Succar, Orlando Olcese, Augusto Salazar Bondy, Juan Ugarte, Carlos Sánchez Málaga, José García Bryce, Augusto Tamayo, Mario Alzamora