Father Pablo Pastells, in a letter to the father provincial, written from Manila, April 20, 1887, devotes considerable space to an ethnological survey of the peoples of Mindanao. The population of that island is divided into Malays and Indonesians (although the latter has no foundation), and Negritos; and there is still another division into Old Christians, New Christians, and heathens. The first named number 186,000, and their customs are influenced to a greater or less degree by those of the heathens according as they are more or less removed from them. Father Pastells describes their social life in many details, which shows that they have become "reduced" fairly well to a half civilized life. The New Christians date from 1876 (the date when the Jesuits reëntered Mindanao) and are scarcely to be differentiated in life and customs from the heathens from whom they have proceeded. The heathens (among whom are evidently numbered the Moros) aggregate 300,000, and among them are found Chinese and Japanese crossings, says Father Pastells. In greater or less detail, is set forth information concerning the Mamanuas, Manobos, Mandayas, Manguangas, Monteses, Guiangas, Bagobos, Calaganes, Tagacaolos, Tirurayes, Tagabili, Sámales, Subánon, Lutangos Moros, Calibuganes, and Moros. The worst of the last named, are the Moros of Jolo, and the Sámales Laút, while the most pacific are the Yacanes. Father Joseph Maclotet writes to the rector of the Ateneo Municipal, from Talisayan, May 11, 1889, concerning the Buquidnons of Misamis province who are divided into three groups, numbering in all about 13,000. Socially and religiously they resemble other natives of that district. They are described and compared to the Visayans. They are intelligent and modest, and have some idea of God, heaven, and eternity. They are polytheists and have four gods. The spirit of evil is also propitiated by them. The sacrifices, consisting of products of the soil, wine, and fowls, are generally offered by the old men. Their marriage ceremonies and various other social features of their life are described. They are industrious and engage in various industries and occupations, the chief being agriculture. Their implements are described, among them being an ingenious cotton-gin. The Chinese with whom they trade take every advantage of them and cheat them on all sides. They have rude musical instruments. They punish crime according to certain traditional laws, the dato being judge. Many superstitions and omens, as in all other heathens of Mindanao, enter into their lives.