This book studies several aspects of Juan Ginés de Sepúlveda's translation of Aristotle's Politics (Book I) and his commentaries. The book includes the translation of Sepúlveda's work from Latin into Spanish and chapters devoted to its most important aspects, particularly the notion of slavery. Within this book, Santiago Melo Arias is: (a) Co-translator (with F. Castañeda, E. Chinchilla, A. Lozano-Vásquez, L. M. Mariño, J. P. Quintero, M. Romero, L. C. Sánchez, and M. de Zubiría); (b) Co-author (with A. Lozano-Vásquez) of the commentary to the translation; (c) Co-author (with J. Hurtado) of the chapter "Economía y crematística en los comentarios de Juan Ginés de Sepúlveda a la Política de Aristóteles" (pp. 233-272).
Santiago Melo Arias has also translated excerpts from Richard Rufus of Cornwall's Scriptum in Metaphysicam Aristotelis, books 5 (Delta), 7 (Zeta), 8 (Eta), and 9 (Theta). These excerpts are principally related to the problem of definition and its unity. Find this title at The Richard Rufus of Cornwall Project at Stanford University.