To the late Mr. F. W. Campion of Trumpets Hill, Reigate, for the photograph of Salacot and Bolo taken from very fine specimens in his possession, and for the use of other photographs. To Messrs. Smith, Bell and Co. of Manila, for the very complete table of exports which they most kindly supplied. To Don Sixto Lopez of Balayan, for the loan of the Congressional Record, the Blue Book of the 55th Congress, 3rd Session, and other books. To the Superintendent of the Reading Room and his Assistants for their courtesy and help when consulting the old Spanish histories in the noble library of the British Museum. ALPHABETICAL LIST OF WORKS CITED, REFERRED TO, OR STUDIED WHILST PREPARING THIS WORK. Abella, Enrique--'Informes' (Reports). Anonymous--'Catálogo Oficial de la Exposicion de Filipinas'; 'Filipinas: Problema Fundamental,' 1887; 'Relacion de las Yslas Filipinas,' 1595; 'Las Filipinas se pierden,' a scurrilous Spanish pamphlet, Manila, 1841; 'Aviso al publico,' account of an attempt by the French to cause Joseph Bonaparte to be acknowledged King of the Philippines. Barrantes Vicente--'Guerras piraticas de Filipinas contra Mindanaos y Joloanos,' Madrid, 1878, and other writings. Becke, Louis--'Wild Life in Southern Seas.' Bent, Mrs. Theodore--'Southern Arabia.' Blanco, Padre--'Flora Filipina.' Blumentritt, Professor Ferdinand--'Versuch einer Ethnographie der Philippinen' (Petermann's). Brantôme, Abbé de--(In Motley's 'Rise of the Dutch Republic.') Cavada, Agustin de la--'Historia, Geografica, Geologica, y estadistica de Filipinas,' Manila, 1876, 1877. Centeno, José--'Informes' (Reports). Clifford, Hugh--'Studies in Brown Humanity,' 'In Court and Kampong.' Comyn, Tomas de. Crawford, John--'History of the Indian Archipelago,' Edinburgh, 1820; 'Descriptive Dictionary of the Indian Islands,' London, 1856. Cuming, E. D.--'With the Jungle Folk.' Dampier, William--(from Pinkerton). De Guignes--'Voyage to Pekin, Manila, and Isle of France.' D'Urville, Dumont. Foreman, John--'The Philippine Islands,' first and second editions. Garcilasso, Inca de la Vega--'Comentarios Réales.' Gironière, Paul de la--'Vingt ans aux Philippines.' Jagor, F.--'Travels in the Philippines.' Jesuits, Society of--'Cartas de los P.P. de la Cia de Jesus de la mision de Filipinas,' Cuads ix y x (1891-95); 'Estados Generales,' Manila, 1896, 1897; 'Mapa Politica Hidrografica'; 'Plano de los Distritos 2o y 5o de Mindanao'; 'Mapa de Basilan.' Mas, Sinibaldo de--'Informe sobre el estado de las Yslas Filipinas en 1842.' Montano, Dr. J.--'Voyage aux Philippines,' Paris, 1886. Monteverde, Colonel Federico de--'La Division Lachambre.' Morga, Antonio de--'Sucesos de las Yslas Filipinas,' Mejico, 1609. Motley, John Lothrop--'Rise of the Dutch Republic.' Navarro, Fr. Eduardo--'Filipinas. Estudio de Asuntos de momento,' 1897. Nieto José--'Mindanao, su Historia y Geographia,' 1894.