Acknowledgments
Jonathan Nelson is grateful to the staff of the John Rylands Library (Special Collections) and Cambridge University Library for their skilled and efficient assistance; to Elisabeth Leedham-Green for unfailing encouragement and generosity of spirit and mind in this as in other projects; and to Ignacio García Pinilla, a paragon of academic professionalism as well as patience, without whom this book would not have been possible. Finally, to Meta Porcella Nelson, who, though an expert in her own field, knows how to inspire the best in her partner.
Ignacio García Pinilla wishes to express his gratitude to José Antonio Ollero Pina and to Francisco Núñez who have selflessly worked to help him providing unpublished archival material; to Rafael Pérez García; to Carlos Gilly; to Michel Boeglin, to Inmaculada García-Cervigón and to Jorge Ledo.