Dr. Von Tschudi says that the Coca plant is regarded by the Peruvian Indian, as something sacred and mysterious, and it sustained an important part in religion of the Incas. In all ceremonies, whether religious or warlike, it was introduced, for producing smoke at the great offerings, or as the sacrifice itself. During divine worship the priests chewed Coca leaves, and, unless they were supplied with them, it was believed that the favour of the gods could not be propitiated. It was also deemed necessary that the supplicator for divine grace should approach the priests with an _Acullico_ in his mouth. It was believed that any business undertaken without the benediction of Coca leaves could not prosper; and to the shrub itself worship was rendered. During an interval of more than 300 years, Christianity has not been able to subdue the deep-rooted idolatry; for everywhere are found traces of belief in the mysterious power of this plant. The excavators in the mines of Cerro de Pasco throw masticated Coca on hard veins of metal, in the belief that it softens the ore and renders it more easy to work. The origin of this custom is easily explained, when it is recollected that in the time of the Incas it was believed that the _Coyas_, or deities of metals, rendered the mountains impenetrable, if they were not propitiated by the odour of Coca. The Indians, even at the present time,[137] put Coca leaves into the mouths of dead persons, to secure to them a favourable reception on their entrance into another world; and when a Peruvian Indian, on a journey, falls in with a mummy, he, with timid reverence, presents to it some Coca leaves as his pious offering. Markham[138] also says, “The reliance on the extraordinary virtues of the Coca leaf, amongst the Peruvian Indians, is so strong, that, in the Huanaco province, they believe that, if a dying man can taste a leaf placed on his tongue, it is a sure sign of his future happiness.” He also gives an account of the modern cultivation of the plant. Sowing is commenced in December and January, when the rains begin, which continue until April. The seeds are spread on the surface of the soil in a small nursery or raising ground called _almaciga_, over which there is generally a thatch roof (_huascichi_). At the end of about a fortnight they come up; the young plants being continually watered, and protected from the sun by the _huascichi_. The following year they are transplanted to a soil specially prepared by thorough weeding, and breaking up the clods very fine by hand; often in terraces only affording room for a single row of plants, up the side of the mountains, which are kept up by small stone walls. The plants are generally placed in square holes called _aspi_, a foot deep, with stones on the sides to prevent the earth from falling in. Three or four are planted in each hole, and grow up together.