[68] "Strictly speaking, then, the work of the redemption of those islanders [in Mindanao] belongs to the Jesuits and the Recollects. The latter commenced their labors by virtue of an arrangement made in the year 1622, by the bishop of Cebú, Very Reverend Father Fray Pedro de Arce--agreed upon with the captain-general of the archipelago, who was then the famous Don Alonso Fajardo de Tenza. Their first enterprises were on the northern and eastern coasts of Mindanao, as well as in the adjacent islets of Dinagat, Camiguin, and Siargao. In the year 1631, the ninth of their evangelizing work, the Recollect fathers suffered painful but glorious losses; for six of those missionaries were martyred by the inhabitants of the island." (Retana and Pastells, in their edition of Combés's _Historia de Mindanao_, col. 788.) [69] River and pueblo of same name in the province of Misamis, in northern Mindanao; the river falls into the bay of Macajalar. [70] A point on the northern coast of Misamis province. [71] Referring to Leo VI, Emperor of the East, styled "the Philosopher" and "the Wise;" he occupied the throne of Constantinople from 886 to 911 A.D. He wrote several books, among which is a treatise on military tactics, which was published by J. Meursius, at Leyden, in 1612. [72] The islands in the Calamianes and Cuyos groups number one hundred and forty-five that are charted, besides nearly sixty that are uncharted. See descriptions of these groups in _U. S. Gazetteer of Philippine Islands_, pp. 412-415, 480-484. The names Calamian and Busuañga are now applied to separate islands, the largest, of the Calamianes group. [73] The bird here referred to (_Collocalia troglodites_) is a specie of swift; the nests, composed of a gelatinous secretion from the salivary glands in the mouths of the birds, sell at high price almost their weight in gold, when fresh and clean. The best nests are obtained on the precipitous sides of the Peñon de Coron, between Culion and Busuanga, where the natives gather them at no little personal risk. The nests are known to commerce as _salangana_. (_U. S. Gazetteer of Philippine Islands_, pp. 170, 482.) Delgado says (_Hist. de Filipinas_, p. 821) that the material used by the bird is a species of seaweed, called _ñgoso_, or another called _lano_--and not, as Colin and San Antonio would have it, the foam of the sea. See _ut supra_, pp. 727, 728, and 822. See also Retana's note in his edition of Zúñiga's _Estadismo_, ii, pp. 430*, 431*.