The Society also busies itself in the conversion and reconciliation of certain heretics, who are wont to come from the East (as has been observed in recent years), and in catechising and baptizing the Moros or the heathens who sometimes reach the islands--either driven from their route, or called by God in other ways; and He draws them to himself, so that they obtain holy baptism, as has been seen in late years in some persons from the Palaos and Carolina islands, and from Siao. Another of the means of which the Society avails itself for the good of souls is, to print and distribute free many spiritual books in various languages, which are most efficacious although mute preachers. These, removing from men their erroneous ideas by clear exposition [of the truth], and leaving them without the cloak of their own fantastic notions, persuade them, without being wearisome, to abandon vice or error; and then they embrace virtue and the Christian mode of life. In Lent, as being an acceptable time and especially opportune for the harvest, the dikes are opened, in order that the waters of the word of God may flow more abundantly. On Tuesdays there is preaching to the Spaniards, and these sermons usually have the efficacy of a mission, although not given under that name. On Thursdays there is explanation of the doctrine, and preaching, in Tagálog, to the Indians; the attendance is very great, since many come, not only from the numerous suburbs of Manila, but even from the more distant villages. On Saturdays some good example of the Virgin is related, with a moral exhortation; the Spaniards who are members of fraternities attend these, and afterward visit the altars. On Sundays there is preaching to the Cafres, blacks, creoles, and Malabars--who through a sense of propriety are called Morenos, although they are dark-skinned. The sermon is in Spanish, and the greatest difficulty of the preacher is to adapt his language to the understanding of the audience. Various poor Spaniards also attend these sermons, as well as other people, of various shades of color, of both sexes.