In other parts of America the priests from Spain did not neglect to turn to account the susceptibility of the Indians for music. Thus, in central America the Dominicans composed as early as in the middle of the sixteenth century a sacred poem in the Guatemalian dialect containing a narrative of the most important events recorded in the Bible. This production they sang to the natives, and to enhance the effect they accompanied the singing with musical instruments. The alluring music soon captivated the heart of a powerful cazique, who was thus induced to adopt the doctrines embodied in the composition, and to diffuse them among his subjects, who likewise delighted in the performances. In Peru a similar experiment, resorted to by the priests who accompanied Pizarro’s expedition, proved equally successful. They dramatised certain scenes in the life of Christ and represented them with music, which so greatly fascinated the Indians that many of them readily embraced the new faith. Nor are these entertainments dispensed with even at the present day by the Indian Christians, especially in the village churches of the Sierra in Peru; and as several religious ceremonies have been retained by these people from their heathen forefathers, it may be conjectured that their sacred musical performances also retain much of their ancient heathen character. Most of the musical instruments found among the American Indians at the present day are evidently genuine old Indian contrivances as they existed long before the discovery of America. Take, for example, the peculiarly-shaped rattles, drums, flutes, and whistles of the North American Indians, of which some specimens in the Museum are described in the large catalogue. A few African instruments, introduced by the negro slaves, are now occasionally found in the hands of the Indians, and have been by some travellers erroneously described as genuine Indian inventions. This is the case with the African _marimba_, which has become rather popular with the natives of Guatemala in central America; but such adaptations are very easily discernible. VII. EUROPEAN INSTRUMENTS OF THE MIDDLE AGES. Many representations of musical instruments of the middle ages have been preserved in manuscripts, as well as in sculptures and paintings forming ornamental portions of churches and other buildings. Valuable facts and hints are obtainable from these evidences, provided they are judiciously selected and carefully examined. The subject is, however, so large that only a few observations on the most interesting instruments can be offered here. Unfortunately there still prevails much uncertainty respecting several of the earliest representations as to the precise century from which they date, and there is reason to believe that in some instances the archæological zeal of musical investigators has assigned a higher antiquity to such discoveries than can be satisfactorily proved.