The efforts of the viceroys and archbishops of Lima during the early part of the seventeenth century to extirpate idolatry, particularly in the province of Lima, led to the preparation of reports by the priests who were entrusted with the duty of extirpation, which contain much curious information. These were the Fathers Hernando de Avendaño, Francisco de Avila, Luis de Teruel, and Pablo José de Arriaga. Avendaño, in addition to his sermons in Quichua, wrote an account of the idolatries of the Indians,—_Relacion de las Idolatrias de los Indios_,—which is still in manuscript. Avila was employed in the province of Huarochiri, and in 1608 he wrote a report on the idols and superstitions of the people, including some exceedingly curious religious legends. He appears to have written down the original evidence from the mouths of the Indians in Quichua, intending to translate it into Spanish. But he seems to have completed only six chapters in Spanish; or perhaps the translation is by another hand. There are still thirty-one chapters in Quichua awaiting the labors of some learned Peruvian scholar. Rising Quichua students, of whom there are not a few in Peru, could undertake no more useful work. This important report of Avila is comprised in a manuscript volume in the National Library at Madrid, and the six Spanish chapters have been translated and printed for the Hakluyt Society.[1252] Teruel was the friend and companion of Avila. He also wrote a treatise on native idolatries,[1253] and another against idolatry,[1254] in which he discusses the origin of the coast people. Arriaga wrote a still more valuable work on the extirpation of idolatry, which was printed at Lima in 1621, and which relates the religious beliefs and practices of the people in minute detail.[1255] Antiquarian treasures of great value are buried in the works of ecclesiastics, the principal objects of which are the record of the deeds of one or other of the religious fraternities. The most important of these is the _Coronica Moralizada del orden de San Augustin en el Peru; del Padre Antonio de la Calancha_ (1638-1653),[1256] which is a precious storehouse of details respecting the manners and customs of the Indians and the topography of the country. Calancha also gives the most accurate Inca calendar. Of less value is the chronicle of the Franciscans, by Diego de Cordova y Salinas, published at Madrid in 1643. A work, the title of which gives even less promise of containing profitable information, is the history of the miraculous image of a virgin at Copacabana, by Fray Alonso Ramos Gavilan. Yet it throws unexpected light on the movements of the _mitimaes_, or Inca colonists; it gives fresh details respecting the consecrated virgins, the sacrifices, and the deities worshipped in the Collao, and supplies another version of the Inca calendar.[1257]