They have three kinds of physicians. Of these the _ampives_, who are skilful herbalists, are the best, and have even some skill in the pulse and other diagnostics of disease. The _vileus_ pretend that all contagious diseases are produced by insects or worms, and are therefore often called _cutampiru_, which signifies vermiculous diseases, or diseases proceeding from worms. The _machis_ are a superstitious class, or pretenders to sorcery, and allege that all diseases proceed from witchcraft, and pretend therefore to cure them by supernatural means, for which reason they are employed in desperate cases, when the exertions of the _ampives_ and _vileus_ have proved ineffectual; They have likewise a kind of surgeons, called _gutarve_; who are skilful in replacing luxations, setting fractured bones, and curing wounds and ulcers. Before the arrival of the Spaniards, the Chilese doctors used bleeding, blistering, emetics, cathartics, sudorifics, and even glysters. They let blood by means of a sharp flint fixed in a small stick; and for giving glysters they employ a bladder and pipe. Their emetics, cathartics, and sudorifics are all obtained from the vegetable kingdom. Their commerce, both internal and external, is all carried on by barter, as they have not adopted the use of money; and this is regulated by a conventional tariff according to which the values of all articles in commerce are appraised under the name of _cullen_, or payment. Their external trade is with the Spaniards, with whom they exchange _ponchos_, or Chilese cloaks, and animals, for wine or European articles. The Spaniards of the province of Maule supply the Araucanians with iron ware, bits for bridles, cutlery, grain, and wine; and are paid in _ponchos_ of which they receive above 40,000 yearly, in horned cattle, horses, ostrich feathers, curious baskets, and other trifles; for it has never been possible to induce them to open their gold mines. The Spanish merchant has in the first place to obtain permission from the ulmens or heads of families of a district, after which he proceeds to all the houses, distributing his merchandize indiscriminately to all, who present themselves. When he has completed his sale, he gives notice of his departure, and all the purchasers hasten to an appointed village, where they deliver the articles agreed for with the utmost punctuality. SECTION IV. _First Expedition of the Spaniards into Chili under Almagro_.